Heats of formation and crystal structures of some group 3 tetrahalides. N[MX4](c) (N = cesium or sodium, M = aluminum or gallium, and X = chlorine or bromine) and [(C6H5)4As][MCl4](c) (M = gallium or indium. Donor-acceptor bond energies for MX3-X- where M = Al, Ga, or In, and X = Cl or Br

1975 ◽  
Vol 14 (10) ◽  
pp. 2413-2416 ◽  
Author(s):  
Richard C. Gearhart ◽  
James D. Beck ◽  
Robert H. Wood
Keyword(s):  
Crystal Structures ◽  
Heats Of Formation ◽  
Bond Energies ◽  
Donor Acceptor ◽  
Group 3

TPEPICO Spectroscopy of Vinyl Chloride and Vinyl Iodide: Neutral and Ionic Heats of Formation and Bond Energies

2008 ◽  
Vol 112 (25) ◽  
pp. 5647-5652 ◽  
Author(s):  
Nicholas S. Shuman ◽  
Melony A. Ochieng ◽  
Bálint Sztáray ◽  
Tomas Baer
Keyword(s):  
Vinyl Chloride ◽  
Heats Of Formation ◽  
Bond Energies ◽  
Vinyl Iodide

Synthese und Kristallstrukturen einiger Tetramethylstibonium-Hydrogendicarboxylate / Synthesis and Crystal Structures of Some Tetramethylstibonium Hydrogendicarboxylates

1982 ◽  
Vol 37 (11) ◽  
pp. 1393-1401 ◽  
Author(s):  
Beatrix Milewski-Mahrla ◽  
Hubert Schmidbaur
Keyword(s):  
Hydrogen Bonds ◽  
Crystal Structures ◽  
Spectroscopic Data ◽  
Molar Ratio ◽  
Ionic Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Carboxylate Oxygen ◽  
Donor Acceptor ◽  
New Compounds

Reactions of pentamethylantimony (CH3)5Sb with carboxylic acids in the molar ratio 1:2 afford one equivalent of methane and essentially quantitative yields of crystalline tetramothylstibonium hydrogendicarboxylates. Six new compounds of this series have been synthesized using benzoic, o-phthalic, salicylic, 4-ethoxy-salicylic, oxalic, and malic acid, and characterized by analytical and spectroscopic data. An ionic structure with strong hydrogen bonds in the anionic components is proposed.The crystal structures of the hydrogen-dibenzoato (1), hydrogen-ortho-plithalato (2) and 4-ethoxy-hydrogen-salicylate (3) were determined by single crystal X-ray diffraction. The compounds can be described as having ionic lattices with some donor-acceptor inter­actions between the stibonium centers and the carboxylate oxygen atoms. The anions are characterized by strong hydrogen bonds O...H...O. Thus, the (CH3)4Sb-tetrahedron in 1 is distorted by two benzoate oxygon atoms (at 304(2) and 340(2) pin). The cation in 2 is largely undistorted and the anion has a hydrogenphthalate hydrogen bond of d(O...H...O) = 232 pm. The cation-anion contact in 3 is as short as d(Sb-O) = 289 pm rendering the Sb atom pentacoordinate.

Bis(3-pyridyl)-substituted TTF as a Donor–Acceptor System: Synthesis, Crystal Structures, and Properties

2014 ◽  
Vol 194 ◽  
pp. 132-136 ◽  
Author(s):  
Wei Pan ◽  
Xunwen Xiao ◽  
Zhiqiang Wang ◽  
Liangjun Shen ◽  
Jianghua Fang ◽  
...  
Keyword(s):  
Crystal Structures ◽  
System Synthesis ◽  
Structures And Properties ◽  
Donor Acceptor

The 63,65Cu NQR Spectra of Di-coordinated CuI Cations with 2-Substituted Pyridine Ligands

1990 ◽  
Vol 45 (3-4) ◽  
pp. 224-228 ◽  
Author(s):  
Augustin Habiyakare ◽  
Edwin A. C. Lücken
Keyword(s):  
Resonance Frequency ◽  
Crystal Structures ◽  
General Formula ◽  
Copper Atom ◽  
Nitrate Anion ◽  
Pyridine Ligands ◽  
Donor Acceptor ◽  
Linear Geometry

Abstract The NQR frequencies of the 63,65 Cu nuclei in di-coordinated complex cations of Cu 1 , having the general formula CuL 2X, where L is a substituted pyridine and X is a hard anion such as ClO4 , are reported and discussed in the light of the known crystal structures. A departure from a strictly linear geometry of the L 2 Cu cation has but little effect on the resonance frequency, but the donor-acceptor bond between the nitrate anion and the copper atom in bis(2,6-lutidine)cuprous nitrate, which was postulated on crystallographic grounds, is confirmed by the NQR results, which also indicate a similar interaction in bis(2,6-lutidine)cuprous trifluoroacetate. A number of the complexes discussed here have not been reported previously.

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