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Nitrogen Tripod Ligand/Oxygen Tripod Ligand Indium(III) Complexes: The First Structurally Characterized Trofimenko−Kläui Complex [η 5 ‐(C 5 H 5 )Co{P(OCH 3 ) 2 (O)} 3 InHB(pz) 3 ][InCl 4 ] (pz = pyrazol‐1‐yl)
Author(s) -
Kläui Wolfgang,
Peters Wilfried,
Liedtke Norbert,
Trofimenko Swiatoslaw,
Rheingold Arnold L.,
Sommer Roger D.
Publication year - 2001
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 - 10.1002/1099-0682(200103)2001:3<693::aid-ejic693>3.0.co;2-j
Subject(s) - chemistry , homoleptic , tripod (photography) , ligand (biochemistry) , indium , cyclopentadienyl complex , metal , medicinal chemistry , coordination sphere , stereochemistry , tripodal ligand , crystal structure , inorganic chemistry , crystallography , organic chemistry , receptor , catalysis , biochemistry , physics , optics
Indium(III) complexes [L R InTp*]X {L R = (cyclopentadienyl)tris[diorganylphosphi(ni)to‐ P ]cobaltate(1−) [η 5 ‐(C 5 H 5 )Co{PR 2 (O)} 3 ] − , R = OCH 3 , CH 2 CH 3 ; Tp* = hydrotris(3,5dimethylpyrazol‐1‐yl)borate} have been prepared from [Tp*InCl 2 (NCCH 3 )] and AgL OMe or TlL Et . Alternatively, equilibration of a 1:1 mixture of the homoleptic complexes [In(L OMe ) 2 ][PF 6 ] and [In(Tp) 2 ][PF 6 ] in aqueous methanol slowly yielded the heteroleptic indium(III) complex [L OMe InTp][PF 6 ]. An X‐ray crystal structure determination revealed a fac ‐N 3 O 3 coordination sphere for the [L OMe InTp][InCl 4 ] complex. These indium compounds represent the first structurally characterized complexes where the tripodal oxygen ligand L R and the tripodal nitrogen ligand Tp are coordinated to the same metal center. Indium(III) is classified as a class a, i.e. a hard metal ion, but it evidently prefers an antisymbiotic arrangement of ligands.