Darstellung und Kristallstruktur des 2:3-Adduktes von Antimontrichlorid und 4-Phenylpyridin, 2 SbCl₃ · 3 (C₁₁H₉N) / Preparation and Crystal Structure of the 2:3 Adduct of Antimony Trichloride and 4-Phenylpyridine, SbCl₃ · 3 (C₁₁H₉N)

Abstract

<jats:title>Abstract</jats:title><jats:p>A congruently melting phase of molar ratio 2:3 was identified in the system SbCl<jats:sub>3</jats:sub>/4-phenylpyridine. The structure consists of two different types of complex units: One SbCl<jats:sub>3</jats:sub> molecule is bonded to one 4-phenylpyridine ligand only, whereas the other one forms a complex with two 4-phenylpyridine ligands. The SbCl<jats:sub>3</jats:sub> unit in the 1:1 species is pyramidally shaped, whereas the SbCl<jats:sub>3</jats:sub> unit in the 1:2 species displays a T-shaped geometry. The mean angle between the phenyl and pyridyl planes is 33.3°; mean bond lengths are 〈Sb-Cl〉 = 247.6 pm and 〈Sb-N〉 = 241.7 pm.</jats:p>

Neutral and Anionic Antimony(III) Species Supported by a Bicyclic Guanidinate

“…For metal halide compounds, this interaction may be strengthened by intramolecular hydrogen bonding to the halide atom (Figure 7). Many bis( N ‐donor ligand) adducts of antimony(III) chloride are known, including, for example, those of 1,4‐diazabutadiene,15 bipy,16 1,2‐bis(aryl‐imino)acenaphthene,17 4‐phenylpyridine18 and 2,6‐dimethylaniline 19. We therefore investigated the use of hppH as a neutral N‐donor ligand with antimony(III) chloride as the metal reagent.…”