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Yusuf Hamied Department of Chemistry

 

Our main interest is in the relationship between the structure and properties of solids. We study the geometric reasons for the chemical activity of solids and the relationship between local order and physical properties, using mathematical techniques and computer graphics. We use solid-state nuclear magnetic resonance spectroscopy (NMR) to examine molecular sieves, minerals, layered materials, fullerenes, ceramics and biological materials.

The G minimal surface divides space into two interpenetrating labyrinths (coloured red and green).

Specific projects:

  • Periodic minimal surfaces (surfaces with zero mean curvature), which appear in a variety of inorganic, organic and biological structures, and the associated mathematical problems.
  • Morphogenesis (the origin of shape and form).
  • Systematic enumeration of crystalline networks using mathematical tiling theory.
  • Graphite, graphite oxide and graphene.
  • Synthesis and characterization of microporous and mesoporous molecular sieves.
  • Synthesis and characterization of metal-organic frameworks (MOFs).

Selected Publications

Hypothetical zeolitic frameworks: In search of potential heterogeneous catalysts. J. Phys. Chem. 112, 1040 (2008)

Low-temperature thermal decomposition of large single crystals of ammonium perchlorate. Chem. Phys. Lett. 454, 233 (2008)

Simulating self-assembly of ZnS nanoparticles into mesoporous materials. J. Am. Chem. Soc. 128, 15283 (2006)

Cross-polarization in the solid state. A guide for chemists. Chem. Rev. 102, 613 (2002)

Synthesis and characterization of a new layered compound of trimesic acid. New Journal of Chemistry 26, 381 (2002)

Exact computation of the triply periodic G ('gyroid") minimal surface. Chem. Phys. Lett. 321, 363 (2000)

Systematic enumeration of crystalline networks. Nature 400, 644 (1999)

Structural studies of tabasheer, an opal of plant origin. Phil. Mag. A 77, 201 (1998)

Structure of graphite oxide revisited. J. Phys. Chem. B102, 4477 (1998)

Solid-state NMR studies of fullerene C60/benzene solvates. J. Phys. Chem. B101, 117 (1997)

New rapidly convergent series representations for z (2 n + 1). Proc. Am. Math. Soc. 125, 1263 (1997)

Directing the pore dimensions in the mesoporous molecular sieve MCM-41. Chem. Phys. Lett. 263, 247 (1996)

Taboo Search: an approach to the multiple-minima problem. Science, 267, 664 (1995)

Publications

Curved surfaces in chemical structure
J Klinowski, AL Mackay, H Terrones
– Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences
(1997)
354,
1975
Extraction of nitric oxide and nitrogen dioxide using molecular sieve 5A (multiple letters) [9]
GP Findlay, M Swart, MN Smithies
– British journal of anaesthesia
(1997)
78,
343
Differential conductance coefficients in a cation-exchange membrane
T FOLEY, KLINOWSK.J, P MEARES
– Proceedings of the Royal Society A
(1997)
336,
327
Theory of isomorphous replacement in aluminosilicates
RM BARRER, J KLINOWSKI
– Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences
(1997)
285,
637
On the integration of incomplete elliptic integrals
D CVIJOVIC, J KLINOWSKI
– Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences
(1997)
444,
525
Surface chemistry and biological pathogenicity of silicates: an X-ray photoelectron spectroscopic study
S Seal, S Krezoski, TL Barr, DH Petering, J Klinowski, PH Evans
– Proc Biol Sci
(1997)
263,
943
New rapidly convergent series representations for $\zeta (2n+1)$
D Cvijovic, J Klinowski
– Proceedings of the American Mathematical Society
(1997)
125,
1263
IR spectroscopic studies of the acidic properties of the mesoporous molecular sieve MCM-41
J Weglarski, J Datka, HY He, J Klinowski
– Physical Chemistry Chemical Physics
(1996)
92,
5161
Solid-state NMR studies of the structure of graphite oxide
HY He, T Riedl, A Lerf, J Klinowski
– The Journal of Physical Chemistry
(1996)
100,
19954
Synthesis and Spectroscopic Characterization of Vanadosilicate Mesoporous MCM-41 Molecular Sieves
ZH Luan, J Xu, HY He, J Klinowski, L Kevan
– The Journal of Physical Chemistry
(1996)
100,
19595
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Research Group

Email address

jk18@cam.ac.uk

College

Peterhouse