Phosphorus phosphorus compounds with the coordination number 4
01 Jan 1977-pp 90-110
About: The article was published on 1977-01-01. It has received None citations till now. The article focuses on the topics: Phosphorus.
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TL;DR: Gadolinium pyrophosphate, Gd 4 (P 2 O 7 ) 3, was prepared through a solution reaction and its existence was confirmed by X-ray, IR and chemical methods as mentioned in this paper.
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TL;DR: In this paper, the N -α-Heteroaromatic substituted thiophosphinic amides are alkylated by methyl iodide at the sulfur atom and can be deprotonated to the free imidoester, which on heating isomerizes into an endocyclic N -methylated compound.
9 citations
TL;DR: This article showed that white phosphorus reacts with organic diselenides in a dipolar aprotic solvent in the presence of a base with the formation of tri(alkyl- or aryl-seleno)phosphites in good yield.
Abstract: White phosphorus reacts with organic diselenides in a dipolar aprotic solvent in the presence of a base with the formation of tri(alkyl- or aryl-seleno)phosphites in good yield.
Tri(methylseleno)phosphitc shows a 31P-chemical shift = −107 ppni (JP, 77Se = 233 Hz). It is readily oxidizcd in air to the corresponding selenophosphate, (CH3Se)3 PO, 31P-chemical shift = −16 ppm.
Tri(phenylseleno)phosphite reacts readily with mercury oxide to give the tri(phenylseleno)phosphate, a yellow solid of m.p. 105–110°. It also reacts with sulfur in refluxing benzene solution to give tri(phenylseleno)thiophosphate, also a yellow solid of m.p. 55–58°. However, an attempt to prepare tri(phenylseleno)selenophosphate failed. Under the same conditions as given above, white phosphorus also reacts with di-p-anisyl ditelluride to give tris(p-anisyltelluro)phosphite, shiny, rusty brown crystals which decompose rapidly at room temperature, but are stable for several months when kept in acetonc solution at −20°.
9 citations