New 1,3,2-thiazaphospholines were prepared, and their steric and electronic structures were examined. The steric and electronic structure of N-[(O-methyl)chloromethylthiophosphoryl]thiourea and the pathways of their ...

1. The dipole moments of the diethyl- and diphenylcyanomethylphosphine oxides were determined, and from them was found the ratio of the conformers. 2. The relative stability of the conformers is determined by electrostatic ...

1. Certain 2-(4-pyridyl)ethyl aryl selenides and 2-(4-pyridyl)ethyl aryl sulfones have been synthesized and their characteristic constants determined. 2. The selenides show structures with trans and gauche C-Py and C-Se ...

1. We were the first to determine the group dipole moment of the 4,4,5,5-tetramethyl-2-oxo-1,3,2-dioxaphospholane ring, which is directed toward the exocyclic bond of phosphorus at an angle of 81°. 2. The 5,5-dimethyl-2- ...

1. The dipole moments of the diethyl esters of vinyl-1,3-butadiene- and α-cyanostyrylphosphonic acids were determined. 2. An interaction of the diethoxyphosphonic group with the π-electron system was detected, and the ...

1. The O,O-dimethylaryl phosphonates exist as mixed conformera, the CH3O group being in something close to gauche orientation with respect to the P-O bond. 2. The aryl radicals are unsymmetrically arranged in these compounds, ...

1. A study has been made of the dipole moments, Kerr constants, and IR spectra of silicon-containing phosphites, phosphates, and phosphonates. 2. The silicon-containing phosphates and phosphonates exist as equilibrium ...

1. The dipole moments of the dichlorides and diethyl esters of the styryl- and p-chlorostyrylphosphonic acids were determined. In the diethyl ester of p-chlorostyrylphosphonic acid the diethoxyphosphono group takes a ...

Electrochemical oxidation of trialkyl phosphites in the presence of aromatic hydrocarbons at glass-carbon electrodes with the addition of Na3PO4, gives arylphosphonates in high yields. © 1983 Plenum Publishing Corporation.

The structure of a great number of methylenephosphine oxides 1-11 and cyanophosphines and their oxides 12-18 was studied by semiempirical PM3 and ab initio RHF/6-31G** calculations. Obtained results are in good agreement ...