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Chelate Complexes of Tripodal, Aliphatic Triisocyanide Ligands
Author(s) -
Hahn F. Ekkehardt,
Tamm Matthias
Publication year - 1992
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.199212121
Subject(s) - chelation , chemistry , ligand (biochemistry) , coordination sphere , stereochemistry , crystallography , resonance (particle physics) , nuclear magnetic resonance spectroscopy , inorganic chemistry , crystal structure , physics , biochemistry , particle physics , receptor
The distinct low‐field shift of the NMR resonance for the central methine proton of the ligand, which penetrates the deshielded region of the anisotropic sphere of the three NC bonds of the complexes 1 (M = Cr, W), suggested the assignment of the in configuration for this complex. The X‐ray structure analysis confirmed the assignment. The synthesis of 1 shows that aliphatic isocyanides with few framework atoms can also form chelate complexes with transition metals.