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The Tris(trimethylsilyl)silylgallium Group as a Building Block in Gallium–Iron Clusters
Author(s) -
Linti Gerald,
Köstler Wolfgang
Publication year - 1998
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/(sici)1521-3765(19980515)4:5<942::aid-chem942>3.0.co;2-7
Subject(s) - trimethylsilyl , cluster (spacecraft) , chemistry , gallium , tris , group (periodic table) , trigonal bipyramidal molecular geometry , crystallography , block (permutation group theory) , trigonal crystal system , stereochemistry , medicinal chemistry , combinatorics , crystal structure , organic chemistry , mathematics , computer science , biochemistry , programming language
Trigonal bipyramidal clusters based on iron carbonyl and gallandiyl derivatives are described. Two types of cluster cores are shown right. a) The Ga 3− x CO x Fe 2 core (Ga 3 Fe 2 shown) is derived from Fe 2 (CO) 9 by the replacement of all, two, or one of the bridging CO ligands with (Me 3 Si) 3 SiGa. b) The Ga 2 Fe 3 core is understood as a closo ‐type cluster following Wade's rules, whereas for a) a classical description is valid. All clusters may be obtained from the reaction of [{Ga(Cl)Si(SiMe 3 ) 3 } 4 ] with the iron carbonylates Na 2 Fe(CO) 4 , Na 2 Fe 2 (CO) 8 and Na 2 Fe 3 (CO) 11 .