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Syntheses, Structures, and Properties of the Complexes [Ag(N∧S) n ](X), N∧S = 1‐Methyl‐2‐(alkylthiomethyl)‐1 H ‐benzimidazoles, X = PF 6 (n = 2) or PO 2 F 2 (n = 1)
Author(s) -
Albrecht Markus,
Hübler Klaus,
Kaim Wolfgang
Publication year - 2000
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(200005)626:5<1033::aid-zaac1033>3.0.co;2-a
Subject(s) - benzimidazole , chemistry , stereochemistry , crystal structure , crystallography , hydrolysis , molecule , organic chemistry
The complexes [Ag(η 2 ‐N∧S) 2 ](PF 6 ), N∧S = 1‐methyl‐2‐(methylthiomethyl)‐1 H ‐benzimidazole, mmb (complex 1 ) or 1‐methyl‐2‐( tert ‐butylthiomethyl)‐1 H ‐benzimidazole, mtb (complex 2 ), and [Ag(μ,η 2 ‐mmb)(μ,η 2 ‐O 2 PF 2 )] (complex 3 ) were synthesized and characterized by X‐ray crystallography. Long Ag–S (ca. 2.70 Å) and shorter Ag–N bonds (ca. 2.23 Å) are part of characteristically distorted tetrahedral coordination arrangements at the silver(I) ions in 1 and 2 . Unexpectedly, the comparison with the copper analogue [Cu(η 2 ‐mmb) 2 ](PF 6 ) reveals a more tetrahedral and less linear coordination arrangement for the corresponding silver species. Compound 3 as obtained by hydrolysis of the PF 6 ion or by the use of AgPO 2 F 2 exhibits bridging mmb and η 2 ‐difluorophosphate ligands in a chain‐type structure.