Author
G. K. Semin
Other affiliations: Irkutsk State University
Bio: G. K. Semin is an academic researcher from Russian Academy of Sciences. The author has contributed to research in topics: Nuclear quadrupole resonance & Substituent. The author has an hindex of 6, co-authored 37 publications receiving 111 citations. Previous affiliations of G. K. Semin include Irkutsk State University.
Papers
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TL;DR: In this paper, NQR spectra have been obtained for molecular complexes of methyltin halides or tin tetrahalides containing various electron-donating molecules.
30 citations
TL;DR: In this article, a systematic account of data on the application of the nuclear quadrupole resonance method in studies on donor-acceptor complexes is given, with particular attention paid to factors responsible for the changes in the principal parameters of NQR spectra.
Abstract: The review describes and gives a systematic account of data on the application of the nuclear quadrupole resonance method in studies on donor–acceptor complexes. Particular attention is paid to factors responsible for the changes in the principal parameters of nuclear quadrupole resonance spectra. The bibliography includes 87 references.
16 citations
TL;DR: In this paper, the nuclear quadrupole resonance spectra of substituted tricarbonylmanganese cyclopentadienyls were investigated and the influence transmitted from the substituent in the ring to the metal according to a conjugation mechanism to a greater degree than according to an induction mechanism.
14 citations
TL;DR: In this paper, it has been shown that in MO LCAO approximation the frequency shift is proportional to the degree of the charge transfer, and the linearity of this dependence has been confirmed for the picrylchloride complexes.
Abstract: In the framework of Mulliken's theory a frequency shift in NQR spectra has been considered. It has been shown that in MO LCAO approximation the frequency shift is proportional to the degree of the charge transfer. For the picrylchloride complexes the linearity of this dependence has been confirmed. It has been shown experimentally that the shift is appreciably affected by steric interactions.
11 citations
TL;DR: In this paper, the NQR spectra of cyclopentadienyltitanium halides Cp n TiHal 4-n have been studied and it was shown that the coupling constants of the halogen atoms regularly increase with the increasing number of Cp rings in the molecule, which is apparently connected with the decreasing multiplicity of the TiHal bond.
10 citations
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TL;DR: In this article, the authors present a generale de travaux concernant la preparation and the structure moleculaire of complexes halogenes, acyles, avec des coordinats contenant de l'oxygene, soufre ou phosphore, des metallocenes ainsi que des composes metallocycliques.
106 citations
81 citations
TL;DR: This is the first reported application of solid-state (35)Cl NMR spectroscopy to molecules with covalently bound chlorine atoms and the methodology outlined herein will find application in the structural characterization of a wide variety of chlorine-containing transition-metal and main-group systems.
Abstract: Static solid-state 35Cl (I = 3/2) NMR spectra of the organometallic compounds Cp2TiCl2, CpTiCl3, Cp2ZrCl2, Cp2HfCl2, Cp*2ZrCl2, CpZrCl3, Cp*ZrCl3, Cp2ZrMeCl, (Cp2ZrCl)2μ-O, and Cp2ZrHCl (Schwartz’s...
80 citations
TL;DR: In this paper, the degree of charge transfer and the ionisation potential of the donor, the half-wave potential in the anodic oxidation of a donor, and the electron affinity and the polarographic reduction potential of a acceptor were discussed.
Abstract: The principal methods for the determination of the degree of charge transfer are examined and experimental data on the intermolecular distribution of electron density in charge-transfer complexes and radical-ion salts of the π–π are surveyed. The relation between the degree of charge transfer and the ionisation potential of the donor, the half-wave potential in the anodic oxidation of the donor, and the electron affinity and the polarographic reduction potential of the acceptor, which largely determine the degree of charge transfer in donor–acceptor systems of the π–π type, is discussed. The bibliography includes 104 references.
69 citations
TL;DR: In this paper, a large number of SnX4·2L and SnX 4·L-L tin tetrahalide adducts were synthesized and analyzed (X = Cl, Br; L = Me2O, Et2O), THF, Me2S, Et 2S, THT, ME2Se, MeCN, Me3CCN, Me 3CO, HMPA, TMPA; L−L = (MeOCH2−)2).
65 citations