(sor), université de...

30
1 Maqsood Ahmed CRM 2 , UMR 7036, UL, Institute Jean Barriol, Nancy, France May 30 th , 2012 Ultra high resolution crystallography of small molecules and proteins 1 1 2 Thiophene Overview Substituted homologues of thiophenes find extensive applications in the production of: 1. Organic semiconducting materials 2. Electric field effect transistors 3. Dye-sensitized solar cells (DSSCs)* Advantages over Si based semiconductors: 1. Their electronic properties are easily tunable by chemical modifications. 2. A chemical substitution reaction is very easy to carry out. A substituted thiophene compound * Grätzel, M. (2001), Nature. 414, 338. In collaboration with SRSMC, group Synthèse Organométallique et Réactivité (SOR), Université de Lorraine. Sajida Noureen, Marc Beley, Philippe C. Gros

Upload: others

Post on 19-Jun-2020

4 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

11

Maq

sood

Ah

med

CR

M2 ,

UM

R 7

036,

UL

, In

stit

ute

Jea

n B

arri

ol,

Nan

cy, F

ran

ce

May 3

0th

, 2

01

2

Ult

ra h

igh

res

olu

tion

cry

stal

logr

aph

y

of s

mal

l m

olec

ule

s an

d p

rote

ins

112

Thio

phene

Ove

rvie

w

Subst

itute

d h

om

olo

gues

of

thio

phenes

find e

xtensi

ve

applic

atio

ns

in t

he p

roduct

ion o

f:

1.

Org

anic

sem

iconduct

ing m

ate

rials

2.

Ele

ctric

field

effect

tra

nsi

stors

3.

Dye

-sensi

tized s

ola

r ce

lls (

DS

SC

s)*

Ad

van

tag

es o

ver

Si b

ased

sem

ico

nd

ucto

rs:

1.

Their e

lect

ronic

pro

pert

ies

are

easi

ly t

unable

by

chem

ical m

od

ifica

tions.

2.

A c

hem

ical s

ubst

itutio

n r

eact

ion is

very

easy

to c

arr

y out.

A s

ubst

itute

d th

iophene c

om

pound

* G

rätz

el,

M. (2

001),

Natu

re. 414, 338.

In c

oll

abora

tion

wit

h

SR

SM

C, gro

up

Syn

thè

se O

rga

no

talli

que e

t R

éa

ctiv

ité (

SO

R),

Un

ive

rsité

de

Lo

rra

ine

.

Saji

da N

ou

reen

, M

arc

Bele

y, P

hil

ipp

e C

. G

ros

Page 2: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

3

Cor

rect

kn

owle

dge

ab

out

stru

ctu

re is

cru

cial

for

a r

atio

nal

su

bst

itu

tion

.

•Pos

itio

n o

f th

e su

bst

itu

ents

,

•Ste

reoc

hem

istr

y

•Ele

ctro

nic

pro

per

ties

Inte

rmol

ecu

lar

inte

ract

ion

s in

T

hio

ph

enes

N

N

N N

N

NR

u

2+

SN

S

S

NS

S

NS

SN

S

SN

S

S

NS

R

R

R

R

R

R

2P

F6

-X

-ray

s cr

ysta

llog

rap

hy

give

s th

e m

ost

accu

rate

str

uct

ure

as

com

par

ed

to o

ther

tec

hn

iqu

es (

lik

e N

MR

).

A t

ypic

al R

uth

eniu

m c

omp

lex

app

lica

ble

in D

SS

Cs.

*

No

ure

en

et

al.

, (2

01

2).

Da

lto

n T

ran

sa

cti

on

s, 4

1, 4

83

3.

4

1.S

tru

ctu

ral

dis

ord

er i

n T

hio

ph

enes

2.C

har

ge

den

sity

an

aly

sis

of

a T

hio

ph

ene

com

po

un

d

3.L

on

e p

airs

ele

ctro

n d

ensi

ty a

nd

H b

on

ds

4.T

ran

sfer

abil

ity

of

elec

tro

n d

ensi

ty p

aram

eter

s

a

-S

mal

l m

ole

cule

b

-P

rote

in

5.C

on

clu

sio

ns

& P

ersp

ecti

ves

OU

TL

INE

Page 3: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

5

1.S

tru

ctu

ral

dis

ord

er i

n T

hio

ph

enes

2.C

har

ge

den

sity

an

aly

sis

of

a T

hio

ph

ene

com

po

un

d

3.L

on

e p

airs

ele

ctro

n d

ensi

ty a

nd

H b

on

ds

4.T

ran

sfer

abil

ity

of

elec

tro

n d

ensi

ty p

aram

eter

s

a

-S

mal

l m

ole

cule

b

-P

rote

in

5.C

on

clu

sio

ns

& P

ersp

ecti

ves

OU

TL

INE

6

1,4

-bis

(2-t

hie

nyl)

bu

tan

e-1

,4-d

ion

e

Data

reso

luti

on

:

0.7

7 Å

R

(F)

initi

al

=

7.4

%

wR

2(F

)in

itial

= 7

.5

%

=

0

.71

07

3 Å

Mo

no

clin

ic

P2

1/n

a =

5.5

516(5

) Å

=92.2

40(6

b =

6.1

567(4

) Å

V

= 5

53.3

(2)

ų

c=

16.1

989(1

6)

Å Z

= 2

Tem

pera

ture

= 1

00K

Dis

ord

er

in

+-

Fourier

resi

dual

M1

Page 4: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

7

R(F

) %

=

7.4

to

5.6

wR

2(F

) %

= 7

.5 to

4.9

Wit

h m

od

ell

ing

of

dis

ord

er,

th

e r

esid

ual

ele

ctr

on

den

sit

y s

ho

ws

sig

nif

ican

t im

pro

vem

en

t alo

ng

wit

h r

efi

nem

en

t sta

tisti

cs.

Pa=

88(3

)%

Pb=

12(3

)%

Pa

+P

b=

1

Po

sit

ive

Ne

ga

tiveM

1

8R

atio

of

dis

ord

er a

re d

iffe

ren

t, e

ven

fo

r th

iop

hen

e ri

ng

s w

ith

in a

sam

e m

ole

cule

a=

5.5

822(2

) Å

=64.4

87(4

b=

14.2

465(5

) Å

= 9

2.2

396(6

c=

14.3

776(7

) Å

= 8

0.6

37(3

)

Z=

2 V

=1018.0

5(7

)ų

Tem

pera

ture

= 1

00K

R(F

2)

= 17.4

%

5

.7%

49.7

(2)

/ 50.3

(2)

%59.7

(3)

/ 40.3

(3)

%

Tri

clin

ic P

-1

M2

1-(

p-H

exyl

ph

enyl

)-2

,5-d

i(2

-th

ien

yl)

pyr

role

Dis

ord

er i

n

Page 5: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

9

( i

) =

x+

1, y

, z

C-

inte

ract

ion

s Dis

tan

ce b

etw

een

H14

A a

tom

&

the

pla

ne

of t

he

rin

g (S

1,C

2A,C

3A)

=

2

.6Å

C2

AC3

A

10

Wit

h S

3 62.5

(5)

/ 37.5

(5)

a=

12.3

15(5

) Å

= 9

6.5

67(5

b=

12.5

92(5

) Å

= 9

9.0

16(6

c=

16.3

86(5

) Å

= 9

6.9

46 (

5)

°

Z=

4 Z

’ = 2

* V

=1234.0

(16)

ų

Tem

pera

ture

= 1

00K

Tri

clin

ic P

-1

M 3

2-cy

ano-

3-[1

-(4-

hex

ylp

hen

yl)-

2,5-

di(

thio

ph

en-2

-yl)

-1H

-pyr

rol-

3-yl

]acr

ylic

aci

dD

isor

der

in

*Th

ere

are

tw

o m

ole

cu

les in

th

e a

sym

metr

ic u

nit

.

On

ly o

ne is s

ho

wn

fo

r th

e r

easo

n o

f cla

rity

.

R(F

2)

= 14.2

%

6

.9%

Page 6: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

11

( i

) =

-x

+3

, -y

, -z

+1

O-

12

12

Th

iop

hen

e ri

ng

show

s st

ruct

ura

l dis

ord

er i

n

the

abse

nce

of

a st

eric

hin

dra

nce

.

Con

clu

sion

Page 7: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

13

1.S

tru

ctu

ral

dis

ord

er i

n T

hio

ph

enes

2.C

har

ge d

ensi

ty a

nal

ysis

of

a T

hio

ph

ene

com

pou

nd

3.L

on

e p

airs

ele

ctro

n d

ensi

ty a

nd

H b

on

ds

4.T

ran

sfer

abil

ity

of

elec

tro

n d

ensi

ty p

aram

eter

s

a

-S

mal

l m

ole

cule

b

-P

rote

in

5.C

on

clu

sio

ns

& P

ersp

ecti

ves

OU

TL

INE

14

X-r

ays

char

ge d

ensi

ty a

nal

ysis

Inte

rnal s

ymm

etr

y co

de:

(i)

= -

x,

-y,

-z

1,4

-bis

(5

-hex

yl-

2-t

hie

nyl)

bu

tan

e-1

,4-d

ion

Tetr

aeth

yl

(4,4

’-d

iph

osp

ho

na

te-2

,2’-

bip

yri

din

e)

Page 8: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

15

1,4

-bis

(5

-he

xy

l-2

-th

ien

yl)

bu

tan

e-1

,4-d

ion

*

Tri

clin

ic P

-1

a=

5.0

47(1

) Å

= 9

8.7

9(5

b=

6.9

79(4

) Å

= 1

12.8

45(4

c=

16.3

33(6

) Å

= 9

5.3

9(5

Z=

1 V

= 564.3

(7)

ų

Tem

pera

ture

= 1

00K

Da

ta r

es

olu

tio

n =

0.4

8 Å

Exp

eri

men

tal an

d t

heo

reti

cal ch

arg

e d

en

sit

y a

naly

sis

*Ah

med

et

al.

(A

cta

Cry

st.

A…

.In

pre

p.)

Ap

plic

ati

on

of

a V

irtu

al A

tom

Mo

de

l

Rin

t

# R

efl

ecti

on

s T

ota

l

&

Un

iqu

e

Ab

so

rpti

on

Co

rrecti

on

Tm

in,T

max

0.0

53

70 0

42

10 2

27

An

aly

tical

0.9

3, 0

.98

Data

co

llecti

on

sta

tisti

cs:

16

Ex

pe

rim

en

tal d

efo

rma

tio

n d

en

sit

y

aft

er

sp

he

ric

al a

tom

mo

de

l re

fin

em

en

t

Th

e d

iffr

acti

on

data

are

very

go

od

as:

1.

Bo

nd

ing

den

sit

y i

s v

ery

well

defi

ned

.

2.

Lo

ne p

air

s o

n O

1 a

nd

S1 a

tom

s c

learl

y v

isib

le.

Fourier

resi

dual m

ap

).

2ex

p(

).ex

p(

][

1)

(1

exp

rHi

iF

FK

Vr

IAM

IAM

Ho

usi

ng

Sh

elxl

& M

oPro

R(F

) =

5.3

%

Page 9: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

17

17

Ha

nse

n &

Co

pp

en

s m

ult

ipo

lar

ato

m m

od

el

dip

ole

q

uad

rup

ole

o

ctu

po

le

Acta

Cry

st.

A34,

909.

(1978)

con

trib

uti

on

s

18

1S

cale

+ S

ph

eric

al A

tom

Mod

el

N [

3(x

yz)

+6

Uij

]

9 p

aram

eter

s p

er a

tom

+

Mu

ltip

olar

Ato

m M

odel

Nn

on-H

[1P

v+

1K+

1K’

+ 3

(Dip

)+

5(Q

uad

)+

7(O

ct)

+9

(Hex

) ]

+

NH

[1

K’

+1

(Dip

)]

20-3

0 p

aram

eter

s in

ad

dit

ion

Nu

mb

er o

f re

fin

able

par

amet

ers

Mu

ltip

olar

ato

m m

odel

has

mu

ch m

ore

par

amet

ers

to

refi

ne,

We

may

nee

d t

o u

se c

onst

rain

s an

d r

estr

ain

ts.

How

str

ong

shou

ld t

he

rest

rain

ts b

e?

Page 10: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

19

R-

fre

e r

efi

ne

me

nts

*

* Brü

nge

r (1

99

2).

Na

ture

,3

55

, 4

72

-47

5

*Pa

ul e

t a

l.,

(20

11).

Acta

Cry

st.

B6

7, 3

65

-37

8.

*Za

rych

ta e

t a

l.,(

20

11).

Acta

Cry

st.

B6

7. 2

50

-26

0.

The d

iffra

ctio

n d

ata

were

div

ided in

to

2

0 s

ets

with

5%

of

free r

efle

ctio

ns.

30 d

iffere

nt

rest

rain

ts w

eig

hts

were

test

ed

for

the c

hem

ical e

quiv

ale

nce

(kappas, vale

nce a

nd m

ultip

ola

r p

ara

mete

rs )

The v

alu

es

of

R-f

ree f

act

ors

were

ave

raged.

The b

est

rest

rain

was

found t

o b

e

Wre

str

ain

=50

(re

stra

in=0.0

2)

weig

ht

20

Mo

Pro

refi

nem

en

t an

d r

esid

ual ele

ctr

on

den

sit

y

R(F

) %

fin

al =

4.3

w

R2(F

) %

fin

al =

4.9

No

t m

uch

ele

ctr

on

den

sit

y i

s l

eft

to

refi

ne. T

he m

od

el is

co

mp

lete

.

C2

-C5, C

7 &

C10 a

nd

C8 &

C9 w

ere

co

nstr

ain

ed

(P

val,

K,K

’&

Plm

) to

geth

er

du

rin

g r

efi

nem

en

t.

usin

g R

free

refi

nem

en

t

).

2ex

p(

)ex

p(

][

1)

(1

rHi

iF

FK

Vr

Mult

Mult

H

ore

s

Page 11: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

21

(b)

(a)

Exp

erim

enta

ldata

Sta

tic

de

form

ati

on

ele

ctr

on

de

ns

ity

Th

eo

reti

cal

Str

uctu

re f

acto

rs

CR

YS

TA

L09

DF

T B

3LY

P

6-3

1G

**

po

sit

ive

/n

eg

ati

ve

/ z

ero

Th

eore

tica

l wor

k w

as p

erfo

rmed

in

col

lab

orat

ion

wit

h D

r. A

you

b N

asso

ur

at C

RM

2

)(

)(

)(

rr

rsp

hst

at

22

Dif

fere

nc

e in

lo

ne

pa

ir e

lec

tro

ns

on

Su

lph

ur

sp

2&

sp

3

Pla

ne o

f th

e lo

ne p

airs

*G

uil

lot,

R., e

t a

l. (

20

01

). A

cta

Cry

st.B

57, 5

67

-57

8.

sp

2

Page 12: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

23

Hyd

rog

en

bo

nd

ing

wit

h lo

ne

pa

irs

on

S a

tom

is

dir

ecti

on

al

H3B

= x

+1,

y-1

, z

; H

12A

= x

-1,

y, z

Pla

ne o

f th

e lo

ne p

airs

24

Co

nto

urs

@ 0

.00

5 e

/ Å

3

Exp

erim

enta

l

Theo

reti

cal

Str

uct

ure

fac

tors

Th

e el

ectr

osta

tic

pot

enti

al

3D

ele

ctro

n d

ensi

ty s

urf

ace

colo

ure

d a

cco

rdin

g t

o t

he

Ele

ctro

stat

ic P

ote

nti

al

Com

pute

d b

y V

MoP

ro &

MoP

roV

iew

er*

*Gu

illo

t, B

. (2

011

). A

cta

Cry

st.

A6

7,

C5

11-C

51

2.

Page 13: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

25

Han

sen

& C

opp

ens

mu

ltip

olar

ato

m m

odel

Str

ateg

y fo

r vi

rtu

al a

tom

mod

el r

efin

emen

t

1

-T

he

vir

tual

ato

ms

wer

e in

itia

lly p

lace

d i

n t

he

mid

dle

of

two

ato

ms.

2

-T

he

init

ial

char

ges

Pvir

wer

e eq

ual

to

zer

o.

3

-T

he

Uij

par

amet

ers

for

the

H &

vir

tual

ato

ms

wer

e co

nst

rain

ed.

4

-

Ref

inem

ent

of

Pvir,

and

p

osi

tio

n o

n b

on

d

A s

imp

lifi

ca

tio

n o

f H

an

se

n &

Co

pp

en

s m

od

el

*Dad

da

et a

l. (

2012

). A

cta

Cry

st. A

Han

sen

& C

opp

ens

mu

ltip

olar

ato

m m

odel

26

Sta

tic

def

orm

atio

n e

lect

ron

den

sity

Co

nto

urs

@ 0

.05

e /

Å3

Exp

erim

enta

l M

ult

ipol

arE

xper

imen

tal V

irtu

al

Th

eore

tica

l Vir

tual

Th

eore

tica

l Mu

ltip

olar

R(F

) =

4.3

%R

(F)

=

4.4

%

R(F

) =

0.3

3%

R(F

) =

0.5

1 %

Page 14: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

27

Mu

ltip

ola

rm

od

el

Vir

tua

la

tom

mo

de

l

Res

idu

al e

lect

ron

den

siti

es w

ith

exp

erim

enta

l dat

a

Sin

/=

0.7

Å-1

Co

nto

urs

@ 0

.05

e /

Å3

Th

e tw

o m

od

els

beh

ave

sim

ilar

ly f

or

exp

erim

enta

l d

ata

R(F

) =

4.3

%

R(F

) =

4.4

%

28

Res

idu

al e

lect

ron

den

siti

es w

ith

th

eore

tica

l dat

a

Th

eo

reti

ca

lM

ult

ipo

lar

Th

eo

reti

ca

lV

irtu

al

sin

/=

1.2

Å-1

Co

nto

urs

@ +

/-0

.05

e /

Å3

Th

e v

irtu

al a

tom

mo

del

beh

aves

wel

l ex

cep

t fo

r lo

ne

pai

rs i

n c

ase

of

theo

reti

cal

dat

a

R(F

) =

0.3

3%

R(F

) =

0.5

1 %

Page 15: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

29

Ele

ctro

stat

ic P

oten

tial

Exp

erim

enta

l dat

a

Vir

tual

Co

nto

urs

@ 0

.00

5 e

/ Å

3

Mult

ipola

r

30

1.S

tru

ctu

ral

dis

ord

er i

n T

hio

ph

enes

2.C

har

ge

den

sity

an

aly

sis

of

a T

hio

ph

ene

com

po

un

d

3.L

one

pai

rs e

lect

ron

den

sity

an

d H

bon

ds

4.T

ran

sfer

abil

ity

of

elec

tro

n d

ensi

ty p

aram

eter

s

a

-S

mal

l m

ole

cule

b

-P

rote

in

5.C

on

clu

sio

ns

& P

ersp

ecti

ves

OU

TL

INE

Page 16: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

31

Lon

e p

airs

ele

ctro

n d

ensi

ty o

f O

xyge

n a

tom

D

FT

32

32

Som

e

oxy

gen

acc

epto

rs

O HX

X

X

X

XH

....

....

C

XX

XO

H

H

........

1)

Ph

en

ols

2)

Alc

oh

ols

3)

Ca

rbo

nyl

O

C

C

X

X

XX

X

XH

....

....

O

C

C

O

X

X

X

X

H..

....

..

4)

Es

ters

5)

Eth

ers

CO

X1 X

2

....

.... H

Page 17: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

33

Nu

mb

er

of

str

uctu

res r

etr

ieved

Don

or

Acc

epto

r

-O-H

-N-H

Car

bon

yl18

645

12 3

32

Ph

enol

s1

287

401

Alc

ohol

s8

840

1 48

4

Est

ers

176

88

Eth

ers

1 73

962

8

Cam

bridge

Cry

stallo

gra

ph

ic

Data

C

entr

e

34

0510152025

05

1015

2025

3035

4045

5055

6065

7075

8085

90

All

d<

1.6

d 1.

6 -

2

d 2

-2.7

An

gle

Be

ta°

% o

cc

urr

en

ce

s

va

ryin

g d

ista

nc

es

O…

Hd

Ste

reoc

hem

istr

y of

H b

ond

s

wit

h C

arb

onyl

acc

epto

rs

02468

10

12

14

16

18

05

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

90

Dis

t al

l

Dis

t <

1.6

Dis

t 1.

6-2

Dis

t 2-

2.7

an

gle

alp

ha

°

% O

ccu

rre

nce

s v

ary

ing

dis

tan

ce

s O

…H

d

°

Page 18: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

35

An

gle

(°)

Ste

reoc

hem

istr

y of

H b

ond

s w

ith

Alc

ohol

s &

Ph

enol

s a

ccep

tors

In a

lco

ho

ls,

ther

e is

a t

end

ency

fo

r an

gle

to

be

larg

er t

han

in

ph

eno

ls

Alc

ohol

Ph

enol

36

OU

TL

INE

1.S

tru

ctu

ral

dis

ord

er i

n T

hio

ph

ene

2.E

xp

erim

enta

l ch

arg

e d

ensi

ty a

nal

ysi

s

3.L

on

e p

airs

ele

ctro

n d

ensi

ty a

nd

H b

on

ds

4.T

ran

sfer

abil

ity

of e

lect

ron

den

sity

par

amet

ers

a

-S

mal

l m

olec

ule

b

-P

rote

in

5.C

on

clu

sio

ns

& P

ersp

ecti

ves

Page 19: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

37

Th

e E

LMA

M2

Lib

rary

Sm

all

un

it c

ell

sp

recis

e c

harg

e

den

sit

y s

tud

ies

Ato

m t

yp

es d

efi

nit

ion

:

Base

d o

n c

hem

ical s

peci

es,

hyb

ridiz

atio

n

state

, fir

st a

nd s

eco

nd n

eig

hbor

ato

ms.

Ave

rag

ing

of

ato

m t

yp

es p

ara

mete

rs.

Only

sig

nif

ican

t m

ult

ipo

les

are

kept.

Usi

ng

local S

ym

metr

yof

defo

rmatio

n

ele

ctro

n d

ensi

ty

E

LMA

M2

Tra

nsfe

r E

LM

AM

2to

-larg

e s

yste

ms

-sm

all

mole

cule

s-low

er

reso

lutio

n d

ata

Used

as :

-

Sta

rtin

g s

et

of para

mete

rs-

Pro

pert

ies

com

puta

tion

Exp

eri

men

tal L

ibra

ry o

f M

ult

ipo

lar

Ato

m M

od

el

Do

mag

ala

et

al.

(2011

) A

cta

.Cry

st.

A38

2, 2

’-(E

tha

ne

-1, 2

-diy

l) b

is [

2-b

rom

oth

iop

he

n-5

-yl)

-1, 3

-Dio

xo

lan

e*

Mo

no

cli

nic

C2/c

a=

19.2

55

(1)

Å

=

112.8

5(4

b=

5.7

800(4

) Å

V=

1736.6

(2)

ų

c=

16.9

33(6

) Å

Z=

4

C16 H

16 B

r2 O

4 S

2

EL

MA

M2

d

ata

ba

se

tra

ns

fer

Da

ta r

es

olu

tio

n =

0.8

3 Å

T

=1

00

K

Co

nto

ur:

0

.05

e/A

3

Exp

eri

men

tal

Defo

rmati

on

Den

sit

y

*Ah

me

d e

t a

l. (

20

11).

Ac

ta C

rys

t. C

67

, o

32

9-o

33

3.

Fo

uri

er

map

aft

er

IAM

refi

nem

en

t (s

ph

eri

cal a

tom

s)

Page 20: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

39

EL

MA

M2

da

tab

as

e t

ran

sfe

r

Re

sid

ua

l e

lec

tro

n d

en

sit

y m

ap

aft

er

EL

MA

M2

tra

ns

ferr

ed

No

t m

uch

ele

ctro

n d

ensi

ty i

s le

ft t

o r

efin

e, h

ence

th

e m

od

el i

s co

mp

lete

.

ato

m(r

) =

cor(

r)+

Pva

l 3

(r)

+

’3R

(’r

)P

lm±

ylm

±

The p

ara

mete

rs o

f P

va

l,&

’and

Plm

±

were

tra

nsf

err

ed f

rom

ELM

AM

2.

Br

atom

typ

e p

rovi

ded

by

S. D

ahao

ui o

f C

RM

2.

In the s

ubse

quent

refin

em

ent,

only

S

cale

,X

YZ

and

Uij

para

mete

rs w

ere

refin

ed

.

IAM

Mu

ltip

ola

r A

tom

Mo

del

R(F

) %

2.7

2.2

wR

2(F

) %

4.1

3.1

Refin

em

ent

statis

tics

40

Ele

ctr

osta

tic p

ote

nti

al o

f asym

metr

ic u

nit

*

Ele

ctro

n d

ensi

ty

Com

pu

ted

usi

ng

EL

MA

M2

dat

abas

e tr

ansf

er

*Com

pute

d b

y V

MoP

ro &

MoP

roV

iew

er

Page 21: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

41

Ap

pli

cati

ons

of

ult

ra h

igh

res

olu

tion

met

hod

s

to P

rote

ins

42

Pro

tein

Ch

oles

tero

l Oxi

das

e at

0.7

2 Å

Th

e st

ruct

ure

was

ref

ined

wit

h P

hen

ix*

* A

fonin

e e

t al., A

cta C

ryst

D, 2012

F

AD

co

fact

or

Org

anis

m

Mo

lecu

lar

wei

gh

t

Met

ho

d

Sp

ace

gro

up

Cel

l d

imen

sio

ns

# M

easu

red

ref

lect

ion

s

# U

niq

ue

ref

lect

ions

R(F

) %

Rfr

ee (

F)

%

wR

2(F

) %

# of

Res

idu

es

# R

esid

ues

in

-h

elic

es

# R

esid

ues

in

-s

hee

ts

Bre

vib

acte

rium

ster

oli

cum

55

kD

a

X-r

ays

dif

frac

tion

P 2

1

a=

51

.273

b=

72

.964

c =

63

.036

=1

05

.18°

46

5 3

85

44

4 5

11

11

.5

14

.0

13

.5

499

12

5

53

Fla

vin

ad

enin

e d

inu

cleo

tid

e

In c

ollo

bor

atio

n w

ith

Pro

f. A

lice

Vri

elin

k, P

erth

, Au

stra

lia

Page 22: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

43

Th

e el

ectr

osta

tic

pot

enti

al o

f th

e ac

tive

sit

e ca

vity

*

Com

pu

ted

usi

ng

EL

MA

M2

dat

abas

e tr

ansf

er

*Com

pute

d b

y V

MoP

ro &

MoP

roV

iew

er

Imag

es a

re m

ade

wit

h P

yM

ol

and

Mo

Pro

Vie

wer

.44

Top

olog

y of

Pro

tein

-Lig

and

inte

ract

ion

s

Sh

orte

st in

tera

ctio

ns

usi

ng

EL

MA

M2

dat

abas

e tr

ansf

er

Page 23: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

45

d=

1.7

(rcp

) =

0.2

6 e/

Å3

d=

1.7

(rcp

) =

0.2

7 e/

Å3

Intr

a-m

olec

ula

r in

tera

ctio

ns

in F

AD

Th

ese

intr

a-m

olec

ula

r in

tera

ctio

ns

are

sup

pos

edly

res

pon

sib

le

for

the

spec

ific

geo

met

ry o

f th

e F

AD

mol

ecu

le.

46

1.S

tru

ctu

ral

dis

ord

er i

n T

hio

ph

enes

2.C

har

ge

den

sity

an

aly

sis

of

a T

hio

ph

ene

com

po

un

d

3.L

on

e p

airs

ele

ctro

n d

ensi

ty a

nd

H b

on

ds

4.T

ran

sfer

abil

ity

of

elec

tro

n d

ensi

ty p

aram

eter

s

a

-S

mal

l m

ole

cule

b

-P

rote

in

5. C

oncl

usi

ons

& P

ersp

ecti

ves

OU

TL

INE

Page 24: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

47

Con

clu

sion

s

47

1.

Chal

lengin

g X

-ray

s st

ruct

ure

s of

thio

phen

es w

ere

solv

ed w

hic

h

hel

ped

to u

nder

stan

d t

he

phen

om

enon o

f dis

ord

er.

2.

Usi

ng u

ltra

-hig

h r

esolu

tion c

ryst

allo

gra

phic

met

hods,

exp

erim

enta

l

and t

heo

reti

cal

char

ge

den

sity

anal

ysi

s of

mole

cule

s w

hic

h h

ave

signif

ican

ce f

or

org

anic

sola

r ce

lls

was

car

ried

out.

3.

An e

xte

nsi

ve

use

of

cryst

allo

gra

phic

dat

abas

e (C

CD

C)

was

mad

e to

find h

ow

lone

pai

rs e

lect

ron d

ensi

ty a

ffec

ts H

bondin

g.

4.

In t

he

abse

nce

of

a hig

h r

esolu

tion d

ata,

the

‘tra

nsf

erab

ilit

y

pri

nci

ple

’ w

as s

ucc

essf

ull

y a

pp

lied

to a

sm

all

mole

cule

and a

lar

ge

pro

tein

to c

alcu

late

ele

ctro

n d

eriv

ed p

rop

erti

es.

48

Per

spec

tive

sP

ersp

ecti

ves

1.

Str

uct

ure

s up

to l

igan

d h

ave

bee

n c

orr

ectl

y d

eter

min

ed.

S

truct

ure

s of

com

ple

xes

wil

l b

e st

udie

d n

ext.

N

N

N N

N

NR

u

2+

SN

S

S

NS

S

NS

SN

S

SN

S

S

NS

R

R

R

R

R

R

2P

F6

-

Lig

and

Page 25: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

49

Per

spec

tive

s

2. I

ntr

odu

ctio

n o

f m

oder

n c

ryst

allo

grap

hy

in P

akis

tan

.

C

urr

ent

acti

vit

y i

s li

mit

ed t

o s

tru

ctu

re r

epo

rts

on

ly.

Pakis

tan

is a

majo

r p

art

ner

in t

he

SE

SA

ME

syn

ch

rotr

on

bein

g c

on

str

ucte

d in

Jo

rdan

.

htt

p:/

/ww

w.s

esa

me

.org

.jo/s

esa

me/

50

Ack

now

led

gem

ents

Su

per

viso

rs:

Pro

f. C

lau

de

Lec

omte

,

Dr.

Ch

rist

ian

Jel

sch

&

Dr.

Ben

oit

Gu

illo

t

All

col

leag

ues

at

CR

M2

My

fam

ily

in P

akis

tan

Col

lab

orat

ors:

Saj

ida

Nou

reen

, P

rof.

M. B

eley

& D

r. P

. Gro

s,

(SR

SM

C, S

OR

gro

up

, N

an

cy)

Pro

f. A

lice

Vri

elin

k, (

Per

th, A

ust

rali

a)

Th

e H

igh

er E

du

cati

on C

omm

issi

on o

f P

akis

tan

(H

EC

)

for

fin

anci

ng

this

Ph

D t

hes

is.

(ww

w.h

ec.g

ov.p

k)

Page 26: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

51

Th

ank

you

!

52

5 2

Re

solu

tio

n i

n C

ryst

all

og

rap

hy

No

d

etai

ls

(en

velo

p)

0.8

Å~

1 Å

Sec

on

dar

y

stru

ctu

re

(Pro

tein

s)

~2.

Mai

n C

hai

n

(Pro

tein

s)

~0.

Ato

mic

P

osi

tio

ns

2X

ZM

3.9

Å

3D

O3

2.5

Å

H a

tom

po

siti

on

s F

ine

dif

fere

nce

s in

elec

tro

nic

clo

ud

n=

2d

sin

d =

n /

2si

n(Å

)

Bra

gg

’s L

aw

Lo

wM

ed

ium

Hig

hU

ltra

Hig

hV

ery

Lo

w

H

Yo

un

ath

et

al,

19

98

Rib

oso

mes(

70

S),

10

Å

Page 27: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

53

54

VII

Ch

arg

e d

en

sit

y a

na

lys

is

Page 28: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

55

(1)-

Sim

ple

Mu

ltip

ole

s r

efi

nem

en

t

(2)

-3rd

ord

er

Gra

m C

harl

ier

an

harm

on

ic

(3)

–4th

ord

er

Gra

m C

harl

ier

an

harm

on

ic

56

Page 29: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

57

58

Ele

ctr

on

Den

sit

y o

f V

irtu

al A

tom

s

Page 30: (SOR), Université de Lorraine.docnum.univ-lorraine.fr/public/DDOC_T_2012_0024_AHMED_Annexe.pdfResidual electron densities with theoretical data Theoretical Multipolar Theoretical

59

Pre

vio

us

Re

sult

s o

f S

OR

G

rou

p

Na

zee

rud

din

et

al.

J.

Am

. C

he

m.

So

c.

19

93

, 1

15

, 6

38

2.

Gra

bu

losa

, A

.; M

art

ine

au

, D

.; B

ele

y, M

.; G

ros,

P.C

.; C

azz

an

ti,

S.;

Ca

ram

ori

, S

.; B

ign

ozz

i, C

.A.

Da

lto

n T

ran

s.

20

09

, 6

3.

__

S

OR

2

__

__

S

OR

1

N3 (

Sta

ndard

dye

)

Th

iop

hen

e r

esu

lt !!

!!!!