Bildung und Struktur von Tris(diphenylstibino)amin/Formation and Structure of Tris(diphenylstibino)amine

Abstract

Tris(stibino)amine, Nitrogen ConfigurationTris(diphenylstibino)amine (Ph2Sb)3N (1) is formed in 49.5% yield by ammonolysis of Ph2SbCl in liquid NH3, and as a side product of the synthesis o f Ph4Sb2 by reactions of Ph3Sb with N a and BrCH2CH2Br in liquid NH3. The structure of 1 was determined by single crystal X-ray diffraction. The crystals consist of molecules with an almost planar Sb3N core (sum of the angles at nitrogen: 352.14°).

Antimony: Organometallic ChemistryBased in part on the article Antimony: Organometallic Chemistry by Alan Berry which appeared in theEncyclopedia of Inorganic Chemistry, First Edition.

“…41 Nitrogen derivatives of organoantimony(III) are known as moisture-sensitive amides R 2 SbNR 2 , RSb(NR 2 ) 2 , and stibino amines (R 2 Sb) 3 N. The amides are obtained from the reactions of organoantimony(III) mono-and dihalides with LiNR 2 or R 2 NH in the presence of Et 3 N. 42,43 Tris(diphenylstibino)amine (Ph 2 Sb) 3 N is formed by ammonolysis of Ph 2 SbCl in liquid NH 3 . 44 It contains an almost planar Sb 3 N core.…”