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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

Neutron diffraction studies of realuminated zeolite Y
PJ BARRIE, LF GLADDEN, J KLINOWSKI
– Chemical Communications
(1991)
592
Two-dimensional J-resolved 13C NMR of a solid with restricted molecular motion
J ROCHA, W KOLODZIEJSKI, J KLINOWSKI
– Chemical Physics Letters
(1991)
176,
395
Cephaloconiosis: a free radical perspective on the proposed particulate-induced etiopathogenesis of Alzheimer's dementia and related disorders.
PH Evans, J Klinowski, E Yano
– Med Hypotheses
(1991)
34,
209
27 Al Solid-state NMR spectra of ultrastable zeolite Y with fast magic-angle spinning and 1 H– 27 Al cross-polarization
J ROCHA, J KLINOWSKI
– Journal of the Chemical Society, Chemical Communications
(1991)
1121
Template removal from molecular sieves by low-temperature plasma calcination
TLM MAESEN, HW KOUWENHOVEN, H VANBEKKUM, B SULIKOWSKI, J KLINOWSKI
– Journal of the Chemical Society, Faraday Transactions
(1990)
86,
3967
Fourier-transform infrared, scanning electron microscopy and magic-angle-spinning nuclear magnetic resonance studies of silicalite synthesized in non-alkaline media
SA AXON, J KLINOWSKI
– Physical Chemistry Chemical Physics
(1990)
86,
3679
Gallium EXAFS and solid-state NMR studies of Ga-substituted MFI-type zeolites
SA AXON, K HUDDERSMAN, J KLINOWSKI
– Chemical Physics Letters
(1990)
172,
398
MONITORING ORGANIC-PRODUCTS OF CATALYTIC REACTIONS ON ZEOLITES BY 2-DIMENSIONAL J-RESOLVED SOLID-STATE NMR
MW ANDERSON, J KLINOWSKI
– Chemical Physics Letters
(1990)
172,
275
Adsorption complexes of methanol on zeolite ZSM-5
G MIRTH, JA LERCHER, MW ANDERSON, J KLINOWSKI
– Physical Chemistry Chemical Physics
(1990)
86,
3039
Spin-off for solid-state studies
J KLINOWSKI
– Nature
(1990)
346,
509
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Research Group

Email address

jk18@cam.ac.uk

College

Peterhouse