ISSN:
0009-2940
Keywords:
Triarsa(V)azenes
;
Arsenic acid, amid
;
Arsenosiloxanes
;
Heterosiloxanes
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Synthesis and Structure of Hexakis(trimethylsilyloxy)triarsazeneHexakis(trimethylsilyloxy)triarsa(V)azene [(Me3SiO)2As=N]3 (1) has been prepared from arsenic acid H3AsO4 and hexamethyldisilazane (Me3Si)2NH. According to an X-ray crystal-structure determination 1 features a slightly puckered six-membered As3N3 ring. The formation of 1 proceeds with evolution of ammonia via tris(trimethylsilyl)orthoarsenate (Me3SiO)3As=O (2) as an intermediate, which could be isolated as a by-product. The reaction of 2 with hexamethyldisilazane also gives 1 in high yields. The influence of temperature, solvent and concentration of reactants on product formation has been investigated, and side reactions are discussed.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19931260211
