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Metal Complexes with Biologically Important Ligands. CLXVI Tetracarbonyl Complexes of Chromium(0) and Molybdenum(0) with Schiff Bases from Pyridine‐2‐carboxaldehyde and α‐Amino Acid Esters as N,N‐Chelate Ligands
Author(s) -
Ederer Theodor,
Herrick Richard S.,
Beck Wolfgang
Publication year - 2007
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/zaac.200600252
Subject(s) - chemistry , pyridine , schiff base , chelation , molybdenum , chromium , stereochemistry , solvatochromism , medicinal chemistry , metal , glycine , norbornadiene , polymer chemistry , organic chemistry , amino acid , molecule , catalysis , biochemistry
Abstract The complexes [M(CO) 4 (pyridyl‐CH=N‐CHRCO 2 R′)] (M = Cr, Mo; R = H, CH 3 , CH(CH 3 ) 2 , CH 2 CH(CH 3 ) 2 ) were obtained by reaction of the Schiff bases from pyridine‐2‐carboxaldehyde and glycine, L‐alanine, L‐valine or L‐leucine esters with the norbornadiene complexes [M(CO) 4 (nbd)] and were characterized by IR, 1 H and 13 C NMR and UV‐vis spectra. The deeply colored complexes exhibit solvatochromism.