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Investigations into the Reactivity of Organoelement Gallium Subhalides – Syntheses of Bifunctional Digallium Carboxylate Iodides Possessing Bridged Ga–Ga Bonds and Terminal Iodine Atoms
Author(s) -
Uhl Werner,
ElHamdan Abdelhakim,
Schindler Klaus Peter
Publication year - 2006
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200600069
Subject(s) - chemistry , carboxylate , bifunctional , chelation , gallium , ligand (biochemistry) , medicinal chemistry , reactivity (psychology) , lithium (medication) , trimethylsilyl , atom (system on chip) , iodine , stereochemistry , polymer chemistry , inorganic chemistry , organic chemistry , catalysis , medicine , biochemistry , receptor , alternative medicine , pathology , computer science , embedded system , endocrinology
The organoelement subhalide R 2 Ga 2 I 2 ( 1 ) [R = C(SiMe 3 ) 3 ] reacted with one equivalent of different lithium carboxylates LiO 2 CR [R = ‐C 6 H 5 , ‐4‐Me 3 C–C 6 H 4 , ‐4‐BrC 6 H 4 , ‐3,5‐Me 2 C 6 H 3 , ‐CMe 3 ] by the selective replacement of only one iodine atom. Bifunctional digallium compounds were formed, in which one chelating carboxylato group bridges the Ga–Ga bonds. Thus, both gallium atoms are coordinated to one carbon atom of the tris(trimethylsilyl)methyl groups and one oxygen atom of the chelating ligand, while only one is further attached to a terminal iodine atom. This asymmetric substitution pattern results in different coordination numbers of three and four for the gallium atoms. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)