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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

PROBLEMS ASSOCIATED WITH THE MICROPOLAROGRAPHIC MEASUREMENT OF THE ARTERIAL-WALL PO2
J Klinowski, SE Korsner, CP Winlove
– Cardiovasc Res
(1982)
16,
448
Ordering of aluminium and silicon in synthetic faujasites
S RAMDAS, JM THOMAS, J KLINOWSKI, CA FYFE, JS HARTMAN
– Nature
(1981)
292,
228
Does the mode of preparation of an aluminosilicate influence the short-range Si,Al ordering?
JM THOMAS, J KLINOWSKI, CA FYFE, JS HARTMAN, LA BURSILL
– Journal of the Chemical Society Chemical Communications
(1981)
678
A new family of crystalline, three dimensionally ordered, microporous structures
JM THOMAS, M AUDIER, J KLINOWSKI
– Journal of the Chemical Society, Chemical Communications
(1981)
1221
Solid-state 29 Si n.m.r. and high-resolution electron microscopic studies of a silicate analogue of faujasite
J KLINOWSKI, JM THOMAS, M AUDIER, S VASUDEVAN, CA FYFE, JS HARTMAN
– Journal of the Chemical Society Chemical Communications
(1981)
570
Transport of radioactive oxygen, nitrogen and xenon into the rabbit thoracic aorta in situ.
J Davis, J Klinowski, CP Winlove
– Cardiovasc Res
(1981)
15,
456
Zeolite RHO. Part 2. - Cation exchange equilibria and kinetics
RM BARRER, S BARRI, J KLINOWSKI
– Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
(1980)
76,
1038
ARTIFACTS IN THE POLAROGRAPHIC MEASUREMENT OF OXYGEN-TENSION IN TISSUE
J KLINOWSKI, CP WINLOVE
– J PHYSIOL-LONDON
(1980)
303,
P84
Zeolite Rho. Part I. Synthesis and characterisation
RM Barrer, SA Barri, J Klinowski
– Proceedings of the 5th International Conference on Zeolites
(1980)
20
Cation exchangers with several groups of sites. Validity of theoretical bases
RM BARRER, J KLINOWSKI
– J CHEM SOC FARAD T 1
(1979)
75,
247
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Research Group

Email address

jk18@cam.ac.uk

College

Peterhouse