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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

Extraction of nitric oxide and nitrogen dioxide using molecular sieve 5A
BB Poulton, J Klinowski, R Latimer, A Vuylsteke
– BRITISH JOURNAL OF ANAESTHESIA
(1997)
78,
344
Distribution of tetrahedral and octahedral A1 sites in gamma alumina
MH Lee, CF Cheng, V Heine, J Klinowski
– Chemical Physics Letters
(1997)
265,
673
Controlling the channel diameter of the mesoporous molecular sieve MCM-41
CF Cheng, WZ Zhou, DH Park, J Klinowski, M Hargreaves, LF Gladden
– Physical Chemistry Chemical Physics
(1997)
93,
359
MAS NMR and XRD study on the vanadium site of vanadium silicate mesoporous molecular sieve MCM-41
DH Park, CF Cheng, J Klinowski
– Bulletin of the Korean Chemical Society
(1997)
18,
70
Solid-state NMR studies of fullerene C-60/benzene solvates
HY He, J Barras, J Foulkes, J Klinowski
– The Journal of Physical Chemistry B
(1997)
101,
117
ESCA studies of the coordination state of aluminium in oxide environments
TL Barr, S Seal, K Wozniak, J Klinowski
– Journal of the Chemical Society, Faraday Transactions
(1997)
93,
181
Optimal parameters for the synthesis of the mesoporous molecular sieve [Si]-MCM-41
CF Cheng, DH Park, J Klinowski
– Journal of the Chemical Society, Faraday Transactions
(1997)
93,
193
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
Analytical chemical applications of high-resolution nuclear magnetic resonance spectroscopy of solids
CA FYFE, L BEMI, R CHILDS, HC CLARK, D CURTIN, J DAVIES, D DREXLER, RL DUDLEY, GC GOBBI, JS HARTMAN, P HAYES, J KLINOWSKI, RE LENKINSKI, CJL LOCK, IC PAUL, A RUDIN, W TCHIR, JM THOMAS, RE WASYLISHEN
– Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences
(1997)
305,
591
Differential conductance coefficients in a cation-exchange membrane
T FOLEY, KLINOWSK.J, P MEARES
– Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences
(1997)
336,
327
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Research Group

Email address

jk18@cam.ac.uk

College

Peterhouse