Journal ArticleDOI
Quadrupole Resonance Spectrum of Chloranil and Its Hexamethylbenzene Complex
TLDR
The nuclear quadrupole resonance spectrum of chloranil and in the 1: 1 complex with hexamethylbenzene was obtained at 77 tained K and room temperature.Abstract:
The nuclear quadrupole resonance spectrum of Cl in chloranil and in the 1: 1 complex of chloranil with hexamethylbenzene was obtained at 77 tained K and room temperature. The results are used to estimate the upper limit for charge transfer in the complex from chloranil to hexamethylbenzene. Complexes of picrylchloride: hexamethylbenzene and parachloroaniline: sym-trinitrobenzene were also studied but no resonances were detected. (D. L.C.)read more
Citations
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Journal ArticleDOI
Spectroscopic investigations of intermolecular interactions in organic molecular crystals
Journal ArticleDOI
Nuclear Quadrupole Resonance Study of Charge Transfer Complexes: Chloranil Complexes
Hideaki Chihara,Nobuo Nakamura +1 more
TL;DR: In this article, the authors measured the resonance frequencies in electron donor-acceptor complexes between chloranil (tetrachloro-p-benzoquinone) and such donors as aromatic hydrocarbons, polyaromatics and amines.
Book ChapterDOI
Charge-Transfer Complexes in Electrochemistry
J.-P. Farges,Felix Gutmann +1 more
TL;DR: The stability of such associations is due to a variety of intermolecular forces, such as van der Waals-London forces or hydrogen bonding, which are weaker and less well understood than the forces involved in a simple chemical reaction.
Journal ArticleDOI
Crystal Structure and Nuclear Quadrupole Resonance. The Bond Length C — Cl and 35Cl NQR
Stefanie Brummer,Alarich Weiss +1 more
TL;DR: In this article, the intramolecular distances dC-Cl for chlorine bound to sp2 carbon and to sp3 carbon correlate quite well according to the theory: v(35Cl) ∼ (dC-C)−3.
Book ChapterDOI
The Measurement and Interpretation of Vibrational Spectra of Molecular Complexes
TL;DR: In this paper, the relative merits of the various experimental techniques available, and the general type of results which are obtained, are discussed and interpreted in the light of theoretically based predictions, and a link between the expected spectral changes outlined in some detail in chapter 1 and the bulk of experimental data presented in chapters 3-7 is made.
References
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Journal ArticleDOI
Pure Nuclear Quadrupole Spectra of Chlorine and Antimony Isotopes in Solids
TL;DR: In this article, the results of experiments on nuclear quadrupole resonances of antimony and chlorine isotopes in solids were compared with theoretical results for quadrupoles and thermal vibrations, and effects of a nuclear hexadecapole.
Journal ArticleDOI
Correlation of Hammett's σ-Values with Electron Densities Calculated by Molecular Orbital Theory
TL;DR: In this paper, it was shown that Hammett's σ−values can be correlated with electron densities calculated by the MO LCAO method, which can be used to calculate reasonable values for absorption frequencies, mesomeric moments, and orienting power of the substituents.
Journal ArticleDOI
Estimates of Hammett's Sigma Values from Quadrupole Resonance Studies
P. J. Bray,R. G. Barnes +1 more
TL;DR: A linear correlation exists between the Cl35 pure quadrupole resonance frequency in substituted chlorobenzenes and the Hammett parameter sigma for the substituent as mentioned in this paper.
Journal ArticleDOI
The structures of molecular compounds exhibiting polarization bonding. II. The crystal structure of the chloranil–hexamethylbenzene complex
T.T. Harding,S. C. Wallwork +1 more