24582-59-0Relevant articles and documents
REACTIONS OF ARSINIC AND ARSONIC ACIDS WITH H2S AND H2Se: CRYSTAL STRUCTURE OF 1,4-DIPHENYL-1,4-DIARSA-2,3,5-TRISELENACYCLOPENTANE
Applegate, Cynthia A.,Meyers, Edward A.,Zingaro, Ralph A.,Merijanian, Aris
, p. 363 - 370 (2007/10/02)
The reactions of a series of arsinic and arsonic acids with hydrogen sulfide and hydrogene selenide have been investigated.The various arsinic acids were found to produce a variety of products, but the reaction was characterized by the reduction of arsenic(V) to arsenic(III), loss of hydroxyl groups bonded to arsenic and, to a lesser degree, the rupture of arsenic-carbon bond(s).Phenylcarboxymethylarsinic acid yielded, on reaction with H2S or H2Se, 1,4-diphenyl-1,4-diarsa-2,3,5-trichalocogenapentanes, where the chalcogen atom is S or Se.Arsonic acids yielded as finalproducts compounds having a range of stoichiometries ranging from RAsS to R*As2S3. 1,4-Diphenyl-1,4-diarsa-2,3,5-triselenacyclopentane consists of a non-planar, five-membered ring in which the As-C bond distances are 1.962 Angstroem, the As-Se bond distances are 2.388 Angstroem and the Se-Se distance is 2.334 Angstroem.The bond distances are very close to those which are expected for single, covalent bonds. KEYWORDS Arsinic acids Arsonic acids Hydrogen sulfide Hydrogen selenide Arsenic heterocyclics Selenium heterocyclics
