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- Publications
- Influence
Modern pulsed and continuous-wave electron spin resonance
Fourier Transform Electron Spin Resonance (M. Bowman) New Trends in Pulsed Electron Spin Resonance Methodology (A. Schweiger) Two-Dimensional Electron Spin Resonance (J. Gorcester, et al.) Pulsed… Expand
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Solvated electron structure in glassy matrixes
- L. Kevan
- Chemistry
- 1 May 1981
Current knowledge of the detailed geometrical structure of solvated electrons in aqueous and organic media is summarized. The geometry of solvated electrons in glassy methanol, ethanol, and… Expand
Alumination and Ion Exchange of Mesoporous SBA-15 Molecular Sieves
- Z. Luan, M. Hartmann, D. Zhao, A. W. Zhou, L. Kevan
- Chemistry
- 13 May 1999
Mesoporous silica SBA-15 molecular sieve has been synthesized and incorporated with aluminum via three different postsynthesis procedures by reacting SBA-15 with AlCl3 in dry ethanol (route 1), wit...
Temperature dependence of copper(II) migration and formation of new copper(II) species during catalytic propylene oxidation on copper(II)-exchanged Y zeolite and comparison with X zeolite
Electron spin resonance (ESR) and electron spin-echo modulation (ESEM) spectroscopies have been used to characterize the aqueous coordination and location of catalytically active Cu(II)… Expand
Hydrothermal synthesis of alkali cation heulandite aluminosilicate molecular sieves
- D. Zhao, L. Kevan, R. Szostak
- Chemistry
- 1 November 1997
Heulandite molecular sieves with a Si/Al ratio of 3.2 ~ 3.8 have been synthesized hydrothermally in the presence of the alkali cations Li + ; Li + , K + ; and Na + , K + at 190 °C at autogenous… Expand
Incorporation of Titanium into Mesoporous Silica Molecular Sieve SBA-15
- Z. Luan, E. M. Maes, P. V. D. Heide, D. Zhao, R. Czernuszewicz, L. Kevan
- Materials Science
- 25 November 1999
Mesoporous silica molecular sieve SBA-15 has been synthesized and incorporated with variable amounts of titanium via incipient-wetness impregnation with titanium isopropoxide in ethanol followed by… Expand
A Reliable Synthesis of Cubic Mesoporous MCM-48 Molecular Sieve
- J. Xu, Z. Luan, Heyong He, A. W. Zhou, L. Kevan
- Materials Science
- 29 October 1998
Powder X-ray diffraction (XRD), 29Si magic-angle-spinning (MAS) NMR spectroscopy, and transmission electron microscopy (TEM) as well as N2 adsorption have been employed to study the formation of… Expand
Substitution of transition metal ions into aluminophosphates and silicoaluminophosphates: characterization and relation to catalysis
- M. Hartmann, L. Kevan
- Chemistry
- 1 October 2002
The literature related to the incorporation of transition metal ions (TMI) into aluminophosphate (AlPO) and silicoaluminophosphate (SAPO) molecular sieves is reviewed. Microporous crystalline metal… Expand
Environment of the iron-sulfur chromophore in adrenodoxin studied by EPR and ENDOR spectroscopy.
- K. Mukai, T. Kimura, J. Helbert, L. Kevan
- Chemistry, Medicine
- Biochimica et biophysica acta
- 25 January 1973
Abstract Changes in the EPR magnetic anisotropy of reduced forms of beef adrenodoxin and spinach ferredoxin induced upon removal of hydrated water molecules from the proteins by evaporation were… Expand
Electron Nuclear Double Resonance Spectroscopy of Radicals in Solution: Application to Organic and Biological Chemistry
- L. Kevan
- Chemistry
- 1988
Introduction Principles of Multiple Electron-Nuclear Resonance Techniques Theoretical Aspects of ENDOR Spectroscopy ENDOR Spectroscopy of Nuclei Other than Protons (Nonproton ENDOR) Organic Doublet… Expand