Yusuf Hamied Department of Chemistry

Professor Jacek Klinowski

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

Spin-off for solid-state studies

J KLINOWSKI

– Nature

(1990)

346,

509

(doi: 10.1038/346509a0)

Dynamics of HIV infection and AIDS in central African cities.

B Auvert, M Moore, WE Bertrand, A Beauchet, P Aegerter, D Lusamba, KT Diong, J Klinowski

– Int J Epidemiol

(1990)

19,

417

(doi: 10.1093/ije/19.2.417)

Aluminosilicate — induced free radical generation by murine brain glial cells in vitro: potential pathogenic and nutritional interactions in Alzheimer's dementia

PH EVANS, E PETERHANS, T BURGE, J KLINOWSKI

– Neurobiology of Aging

(1990)

11,

288

(doi: 10.1016/0197-4580(90)90700-a)

29Si and 27Al magic-angle-spinning NMR studies of the thermal transformation of kaolinite

J ROCHA, J KLINOWSKI

– Physics and Chemistry of Minerals

(1990)

17,

179

(doi: 10.1007/BF00199671)

Kaolinite as a convenient standard for setting the Hartmann-hahn match for 29Si CP/MAS NMR of silicates

J ROCHA, J KLINOWSKI

– Journal of Magnetic Resonance (1969)

(1990)

90,

567

(doi: 10.1016/0022-2364(90)90062-e)

DEALUMINATION OF ZEOLITES WITH SILICON TETRACHLORIDE VAPOR .6. ZEOLITES LI,NA-X AND LI,NA-Y

B SULIKOWSKI, J KLINOWSKI

– Physical Chemistry Chemical Physics

(1990)

86,

199

(doi: 10.1039/ft9908600199)

Solid-state NMR evidence for the strong binding of methanol prior to carbon-carbon bond formation during the synthesis of gasoline on molecular sieve catalysts

MW ANDERSON, J KLINOWSKI

– Chemical Communications

(1990)

918

(doi: 10.1039/c39900000918)

The rehydration of metakaolinite to kaolinite: Evidence from solid-state NMR and cognate techniques

J ROCHA, JM ADAMS, J KLINOWSKI

– Journal of Solid State Chemistry

(1990)

89,

260

(doi: 10.1016/0022-4596(90)90267-2)