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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

Synthesis and structural characterization of the aluminophosphate molecular sieve DPA-VPI-5
X Liu, H He, J Klinowski
– The Journal of Physical Chemistry
(2002)
95,
9924
Solid-State NMR Studies of Zeolite [Si,B]-ZSM-5 Synthesized by the "Fluoride Method"
SA Axon, J Klinowski
– The Journal of Physical Chemistry
(2002)
98,
1929
Attractive Inter- and Intramolecular N.cntdot..cntdot..cntdot.O Interactions in N,N-Dipicrylamine and Its Ionic Complexes
K Wozniak, H He, J Klinowski, W Jones, E Grech
– The Journal of Physical Chemistry
(2002)
98,
13755
Variable-temperature 129Xe NMR studies of a pillared montmorillonite
PJ Barrie, GF McCann, I Gameson, T Rayment, J Klinowski
– The Journal of Physical Chemistry
(2002)
95,
9416
Transformations of the aluminum (Al13) polyoxycation intercalated in the layered lattice of molybdenum trioxide
E Lalik, W Kolodziejski, A Lerf, J Klinowski
– The Journal of Physical Chemistry
(2002)
97,
223
Layered Titanate Pillared with Alumina
MW Anderson, J Klinowski
– Inorganic Chemistry
(2002)
29,
3260
The Role of Surfactant Micelles in the Synthesis of the Mesoporous Molecular Sieve MCM-41
C-F Cheng, Z Luan, J Klinowski
– Langmuir
(2002)
11,
2815
ESCA studies of framework silicates with the sodalite structure. 2. Ultramarine
H He, TL Barr, J Klinowski
– The Journal of Physical Chemistry
(2002)
98,
8124
A highly siliceous structural analog of zeolite Y: high-resolution solid-state silicon-29 and aluminum-27 NMR studies
J Klinowski, JM Thomas, CA Fyfe, GC Gobbi, JS Hartman
– Inorganic Chemistry
(2002)
22,
63
Spectroscopic studies of barium aluminate glycolate, Ba[Al2(C2H4O2)4], a 5-coordinate aluminum compound
B Herreros, TL Barr, J Klinowski
– Journal of Physical Chemistry
(2002)
98,
738
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Email address

jk18@cam.ac.uk

College

Peterhouse