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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

TRANS-BUT-2-ENE IS THE 1ST HYDROCARBON PRODUCED IN THE CONVERSION OF METHANOL TO GASOLINE OVER ZEOLITE H-ZSM-5
B SULIKOWSKI, J KLINOWSKI
– Applied Catalysis A, General
(1992)
89,
69
Autoclave synthesis and thermal transformations of the aluminophosphate molecular sieve VPI-5: an in situ X-ray diffraction study
HY HE, P BARNES, J MUNN, X TURRILLAS, J KLINOWSKI
– Chemical Physics Letters
(1992)
196,
267
27Al solid-state NMR studies of molybdenum bronze intercalated with aluminium polyoxycations
W KOLODZIEJSKI, E LALIK, A LERF, J KLINOWSKI
– Chemical Physics Letters
(1992)
194,
429
Preparation and characterization of titanosilicates with ZSM-5 structure
B SULIKOWSKI, J KLINOWSKI
– Applied Catalysis A: General
(1992)
84,
141
PROBING THE DYNAMICS OF ORGANIC-MOLECULES ADSORBED ON ZEOLITE ZSM-5 BY QUASI-ELASTIC NEUTRON-SCATTERING
JH WILLIAMS, J KLINOWSKI
– Physical Chemistry Chemical Physics
(1992)
88,
1335
ISOMERIZATION OF XYLENES ON BOROALUMINOSILICATE CATALYSTS WITH THE ZSM-5 STRUCTURE, SYNTHESIZED IN NONALKALINE MEDIA
B SULIKOWSKI, J KLINOWSKI
– Zeitschrift für Physikalische Chemie
(1992)
177,
93
Aluminosilicate-lnduced free radical generation by murine brain glial cells in vitro: Potential significance in the aetiopathogenesis of alzheimer’s dementia
PH EVANS, E PETERHANS, T BURGE, J KLINOWSKI
– Dementia and Geriatric Cognitive Disorders
(1992)
3,
1
P-31 SOLID-STATE NMR-STUDY OF SPIN DIFFUSION IN THE MOLECULAR-SIEVE VPI-5 USING VARIABLE-SPEED MAS
W KOLODZIEJSKI, HY HE, J KLINOWSKI
– Chemical Physics Letters
(1992)
191,
117
Characterization of polysomatism in biopyriboles: Double-/triple-chain lamellar intergrowths
MD WELCH, J ROCHA, J KLINOWSKI
– Physics and Chemistry of Minerals
(1992)
18,
460
The T and CLP families of triply periodic minimal surfaces. Part 1. Derivation of parametric equations
D CVIJOVIC, J KLINOWSKI
– Journal de Physique I
(1992)
2,
137
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Research Group

Email address

jk18@cam.ac.uk

College

Peterhouse