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Crown Thioether Complexes of Ag I and Cu I : The Crystal Structures of [{Ag 3 L 3 }AgL{AgL 2 }](ClO 4 ) 4 and [LCuI] (L = 1, 4, 7‐Trithiacyclononane)
Author(s) -
Küppers HeinzJosef,
Wieghardt Karl,
Tsay YiHung,
Krüger Carl,
Nuber Bernhard,
Weiss Johannes
Publication year - 1987
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198705751
Subject(s) - crystallography , thioether , molecule , chemistry , crystal structure , ligand (biochemistry) , monomer , copper , x ray crystallography , octahedron , atom (system on chip) , stereochemistry , physics , polymer , diffraction , optics , biochemistry , receptor , organic chemistry , computer science , embedded system
A crown thioether molecule as bridging ligand and two types of cations in the molecule are the most striking features of the silver complex [Ag 4 L 5 ](ClO 4 ) 4 ( L = 1,4,7‐trithiacyclononane). In the cation [Ag L 2 ] ⊕ , Ag ⊕ is surrounded by six S atoms, in the cation [Ag 3 L 3 ] 3⊕ by four. One S atom of each of the three ligands in [Ag L ,] 3⊕ is bound to two Ag ⊕ . In contrast, the soft Lewis base I ⊕ in [ L CuI] competes with the S atoms for coordination positions. In the resulting monomeric units, Cu ⊕ is coordinated in a distorted tetrahedral fashion by three S atoms and one I ⊕ .