Antimony(III) Chloride Complexes with Benzylpyridines: Synthesis and Luminescence. Crystal Structure of Bis(2-benzylpyridinium) Pentachloroantimonate(III) |
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Authors: | Storozhuk T V Udovenko A A Mirochnik A G Petrochenkova N V Karasev V E |
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Institution: | (1) Russian Academy of Sciences, Institute of Chemistry, Far East Division, pr. Stoletiya Vladivostoka 159, Vladivostok, 690022, Russia |
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Abstract: | The antimony(III) chloride complexes with 2- and 4-benzylpyridine were synthesized and studied using elemental analysis, X-ray diffraction analysis, IR spectroscopy, and luminescence spectroscopy. The crystal structure of bis(2-benzylpyridinium) pentachloroantimonate(III) was determined. The crystals are triclinic: a = 9.628(1) Å, b = 15.284(2) Å, c = 19.174(2) Å, = 99.962(2)°, = 101.233(2)°, = 99. 216(2)°; Z = 4, (calcd) = 1.591 g/cm3, space group P
, R = 0.0358. The structure consists of polymeric chains of Sb2Cl10]4n–
n
anions and C12H11NH]+ cations combined into a framework by the N–H···Cl hydrogen bonds. The electronic and geometrical factors responsible for a relatively low intensity of the luminescence emitted by the complexes of antimony(III) chloride with 2- and 4-benzylpyridine at 77 K are discussed. |
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