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LSb(μ‐I) 2 (μ‐S)SbL: a Neutral Triply Bridged Complex obtained from Sb Powder and Diiodine activated by Tetraphenyldithioimidodiphosphine (HL)
Author(s) -
Arca Massimiliano,
Garau Alessandra,
Devillanova Francesco A.,
Isaia Francesco,
Lippolis Vito,
Verani Gaetano,
Abbati Gian Luca,
Cornia Andrea
Publication year - 1999
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/(sici)1521-3749(199903)625:3<517::aid-zaac517>3.0.co;2-0
Subject(s) - chemistry , crystallography , denticity , metal , iodide , ligand (biochemistry) , stereochemistry , lone pair , steric effects , coordination sphere , tetragonal crystal system , trigonal pyramidal molecular geometry , crystal structure , inorganic chemistry , molecule , biochemistry , receptor , organic chemistry
The synthesis of the complex LSb(μ‐I) 2 (μ‐S)SbL ( 1 ) was accomplished by reacting antimony powder with diiodine activated by tetraphenyldithioimidodiphosphine (SPPh 2 NHPPh 2 S) (H L ). X‐ray diffraction (tetragonal, M = 1426.30, space group I 4 1 /a (No. 88), Z = 8, a = 18.020(2) Å, c = 33.037(4) Å) shows that ( 1 ) is a dinuclear Sb III complex, in which the two metal ions are bridged by one sulphide and two iodide anions. An anionic bidentate L ligand completes the coordination sphere of each metal with its two sulphur atoms, leading to a slightly distorted pyramidal coordination geometry, since each metal ion shows the presence of a sterically active lone‐pair in trans position to the bridging sulphide. 31 P CP‐MAS NMR and IR spectroscopies are in accordance with the structural features of the complex.