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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

Attractive Inter- and Intramolecular N.cntdot..cntdot..cntdot.O Interactions in N,N-Dipicrylamine and Its Ionic Complexes
K WOZNIAK, HY HE, J KLINOWSKI, W JONES, E GRECH
– Journal of Physical Chemistry
(2002)
98,
13755
Mesopore Molecular Sieve MCM-41 Containing Framework Aluminum
ZH LUAN, CF CHENG, WZ ZHOU, J KLINOWSKI
– Journal of Physical Chemistry
(2002)
99,
1018
SYNTHESIS OF TBA-VPI-5 AND DPA-VPI-5
HY HE, J KLINOWSKI
– Journal of Physical Chemistry
(2002)
98,
1192
ESCA, SOLID-STATE NMR, AND X-RAY-DIFFRACTION MONITOR THE HYDROGEN-BONDING IN A COMPLEX OF 1,8-BIS(DIMETHYLAMINO)NAPHTHALENE WITH 1,2-DICHLOROMALEIC ACID
K WOZNIAK, HY HE, J KLINOWSKI, W JONES, TL BARR
– Journal of Physical Chemistry
(2002)
99,
14667
THERMAL-STABILITY OF STRUCTURAL ALUMINUM IN THE MESOPOROUS MOLECULAR-SIEVE MCM-41
ZH LUAN, CF CHENG, HY HE, J KLINOWSKI
– The Journal of Physical Chemistry
(2002)
99,
10590
Acidic hydroxyl groups in zeolites X and Y. A correlation between infrared and solid-state NMR spectra
B GIL, E BROCLAWIK, J DATKA, J KLINOWSKI
– Journal of Physical Chemistry
(2002)
98,
930
High-resolution solid-state C-13 NMR studies of poly[(R)-3-hydroxybutyric] acid
F Nozirov, Z Fojud, J Klinowsk, S Jurga
– Solid state nuclear magnetic resonance
(2002)
21,
197
Twinning in zeolite Y. The conversion of faujasite into a new zeolite structure
M AUDLER, JM THOMAS, J KLINOWSKI, DA JEFFERSON, LA BURSILL
– Journal of Physical Chemistry
(2002)
86,
581
Solid-state magic-angle spinning aluminum-27 nuclear magnetic resonance studies of zeolites using a 400-MHz high-resolution spectrometer
CA FYFE, GC GOBBI, JS HARTMAN, J KLINOWSKI, JM THOMAS
– The Journal of Physical Chemistry
(2002)
86,
1247
Solid-State NMR Studies of Hydrated Porous Aluminophosphate VPI-5
J ROCHA, W KOLODZIEJSKI, HY HE, J KLINOWSKI
– Journal of the American Chemical Society
(2002)
114,
4884
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Research Group

Email address

jk18@cam.ac.uk

College

Peterhouse