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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

Order-disorder model of cation exchange in silicates
RM BARRER, J KLINOWSKI
– Geochimica et Cosmochimica Acta
(1979)
43,
755
Adsorption of mixtures of A and B with AA, AB and BB interactions
RM BARRER, J KLINOWSKI
– Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
(1978)
74,
904
Radioactive gas transport into the arterial wall [proceedings]
J Davis, J Klinowski, CP Winlove
– Journal of Physiology
(1978)
284,
54P
Framework substitution in aluminosilicates
RM Barrer, J Klinowski
– ACS Symposium Series: Research Reports
(1977)
40,
37
Hydrogen mordenite and hydronium mordenite. Ion exchange and thermal stability
RM BARRER, J KLINOWSKI
– Journal of the Chemical Society Faraday Transactions 1 Physical Chemistry in Condensed Phases
(1975)
71,
690
Ion exchange in mordenite
RM BARRER, KLINOWSK.J
– J CHEM SOC FARAD T 1
(1974)
70,
2362
Ion-exchange selectivity and electrolyte concentration
RM BARRER, KLINOWSK.J
– J CHEM SOC FARAD T 1
(1974)
70,
2080
Zeolite exchangers. Thermodynamic treatment when not all ions are exchangeable
RM BARRER, KLINOWSK.J, HS SHERRY
– Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
(1973)
69,
1669
Ion exchange involving several groups of homogeneous sites
RM BARRER, KLINOWSK.J
– Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
(1972)
68,
73
Influence of framework charge density on ion-exchange properties of zeolites
RM BARRER, KLINOWSK.J
– Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
(1972)
68,
1956
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Research Group

Email address

jk18@cam.ac.uk

College

Peterhouse