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| 1. |
The Concept of Prochirality Applied to Coordination Compounds |
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Comments on Inorganic Chemistry,
Volume 12,
Issue 2-3,
1991,
Page 67-91
G. Mestroni,
E. Alessio,
G. Zassinovich,
L.G. Marzilli,
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摘要:
The concept of prochirality, widely used for organic molecules, is extended here to mononuclear octahedral (OC-6), square pyramidal (SP-5), square planar (SP-4) and trigonal bipyramidal (TB-5) coordination compounds.
ISSN:0260-3594
DOI:10.1080/02603599108050598
出版商:Taylor & Francis Group
年代:1991
数据来源: Taylor
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| 2. |
The Artificial Leaf, Molecular Photovoltaics Achieve Efficient Generation of Electricity from Sunlight |
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Comments on Inorganic Chemistry,
Volume 12,
Issue 2-3,
1991,
Page 93-111
Michael Grätzel,
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摘要:
A new molecular photovoltaic system for solar light harvesting and conversion to electricity has been developed. It is based on the spectral sensitization of a thin ceramic membrane by suitable transition metal complexes. The film consists of nanometer-sized colloidal titanium dioxide particles sintered together to allow for charge carrier transport. When derivatized with a suitable chromophore these membranes give extraordinary efficiencies for the conversion of incident photons into electric current, exceeding 90% for certain transition metal complexes within the wavelength range of their absorption band. The present paper discusses the underlying physical principles of these astonishing findings. Exploiting this discovery, we have developed a new type of photovoltaic device whose overall light to electric energy conversion yield is 11% in diffuse daylight and 6% under direct (AM1) solar irradiation.
ISSN:0260-3594
DOI:10.1080/02603599108050599
出版商:Taylor & Francis Group
年代:1991
数据来源: Taylor
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| 3. |
A Framework for the Classification of Organosulfur Transition Metal Complexes |
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Comments on Inorganic Chemistry,
Volume 12,
Issue 2-3,
1991,
Page 113-138
Lorna Linford,
HelgardG. Raubenheimer,
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摘要:
More than 500 publications on the synthesis and reactivity of organosulphur transition metal complexes have appeared, but no coherent picture of the relations between the various compounds or their synthesis has emerged yet. A framework, based on simple formal conversions of thiocarbonyl and carbon disulfide complexes and the derived compound types, is now presented. The ten classes of compounds are obtained by various types of reactions of which alkylation, protonation, hydride addition, deprotonation, sulfur insertion and fragmentation are the most important.
ISSN:0260-3594
DOI:10.1080/02603599108050600
出版商:Taylor & Francis Group
年代:1991
数据来源: Taylor
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| 4. |
What Are One-Electron Energies and Electronegativity-Related Parameters? |
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Comments on Inorganic Chemistry,
Volume 12,
Issue 2-3,
1991,
Page 139-197
ChristianK. Jørgensen,
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摘要:
A singleZ-nucleus, andKelectrons, allow many different, plausible definitions of one-electron energies. The treatment, originally of atomic spectra [of which very high chargesz= (Z - K) now are known], has been extended into chemistry studying a mist of indiscernible electrons around several nuclei. Quantum chemistry has revealed many counterintuitive (verified) consequences, and its Achilles heel is the correlation effect for two-digitZ. The present status of electronegativity, M.O. and inner-shell ionization, stabilization of oxides and of unusual oxidation states, heats of atomization, d and f group characteristics, and spin-pairing energy are reviewed.
ISSN:0260-3594
DOI:10.1080/02603599108050601
出版商:Taylor & Francis Group
年代:1991
数据来源: Taylor
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