An all-organic hydrogen-bonded zeolite-like framework from molecular tiles

• Design through frustration: Guandinium and sulfonate ions typically form layered materials, but this is precluded by the polyvalency and symmetry of the hexasulfonate tile. Also, Platonic polyhedra can be excluded because none have hexagonal tiles, and 12 of the 13 Archimedean polyhedra can be excluded because they either do not have hexagonal tiles or the hexagonal tiles are not complementary along the shared edges.

• The truncated octahedron serves as a secondary building unit in a new all-organic zeolite-like microporous crystalline framework with structural features resembling those of sodalite and zeolite A. The new material is thermally robust and capable of encapsulating a remarkable variety of different molecules, promising the design of new functional materials, including nanoreactors for “ship-in-a-bottle” reactions, solid-state lasing materials, highly uniform nanoclusters, and magnetic solids.

• Liu, et al., Science, 2011, 333, 436

• Supported primarily by DMR-0906576 and partially (facilities) by CRIF/CHE-0840277 and the MRSEC Program under Award Number DMR-0820341

• Rational design of a supramolecular truncated octahedron cage, one of the 13 Archimedean polyhedra assembled from twenty ions of three distinct species through seventy-two hydrogen bonds! The truncated octahedron can be viewed as a polyhedron constructed from molecular tiles with complementary hydrogen bonding along metrically-matched edges.

Michael D. Ward, New York University, DMR 0906576

NEW YORK UNIVERSITY MRSEC

The Material World

• A weeklong materials science workshop series with morning lectures followed by hands-on lab exercises to reinforce concepts for introduction of materials-related content into core science curricula at the home institution

• Organized and taught by MRSEC faculty investigators

• Partnership with the Faculty Resource Network at NYU, held during the FRN Network Summer program

• ContentHolographic Video MicroscopyCrystals and LightHow Stuff PacksColor and FoodLithography and ElectricityPolymer Chemistry

• Participants: Faculty from 10 four-year and minority-serving institutions

• Building inexpensive holographic microscopes, growing crystals, experiencing packing in the “balloon room”, making circuit boards and polymers

The Balloon Room!

Polymers for electronics

Staining crystal with dyes

DMR-0906576 (Ward) and DMR-0820341 (NYU MRSEC)

Michael D. Ward, New York University, DMR 0906576

The Material World

NEW YORK UNIVERSITY MRSEC

Building holographic microscopes

Packing polyhedra• A weeklong materials science workshop series with morning lectures followed by hands-on lab exercises to reinforce concepts for introduction of materials-related content into core science curricula at the home institution

• Organized and taught by MRSEC faculty investigators

• Partnership with the Faculty Resource Network at NYU, held during the FRN Network Summer program

• ContentHolographic Video MicroscopyCrystals and LightHow Stuff PacksColor and FoodLithography and ElectricityPolymer Chemistry

• Participants: Faculty from 10 four-year and minority-serving institutions

• Building inexpensive holographic microscopes, growing crystals, experiencing packing in the “balloon room”, making circuit boards and polymers

DMR-0906576 (Ward) and DMR-0820341 (NYU MRSEC)

Michael D. Ward, New York University, DMR 0906576