Infra-red absorption spectra of metal-amino acid complexes—II. An infra-red study of the metal-nitrogen bond in glycine chelates

Raman and IR spectral studies of D‐phenylglycinium perchlorate

“…This mode usually occurs in the region 1000-970 cm 1 and appears as a shoulder on the lowwavenumber side of the intense band at 1000 cm 1 due to the trigonal ring 'breathing' mode ( 12 ). 25 This 5 mode is assigned to the weak shoulder peaks around 984 cm 1 in both the Raman and infrared spectra of the title crystal.…”

Synthesis and characterization of cobalt(II) and copper(II) complexes with 5-amino-3,4-dimethylisoxazole

“…The strong band present in tetrahedral halide compounds in the 329-312 cm -1 range may be attributed to the v(Co-NH2) vibration, according to literature data (28)(29) and to near i.r. bands of the amino groups.…”

“…spectrum of Co4(5-ADI)I ~ Is shows bands at 214 and 208 cm -1 attributed to metal-iodo stretching frequencies for tetrahedral and octahedral stereochemistries respectively; the bands at 329, 325 and 316, 312 cm -1 can be assigned to v(Co-NH2) (28)(29) according to the negative shifts of v(-NH 2) in the near i.r. spectrum.…”

Thermal, spectral and magnetic studies on glycine complexes of cobalt(II), nickel(II) and zinc(II) with hydrazine

“…Hydrazine hydrate [99-100%) was used as such in all the reactions. Metal glycinate hydrates were prepared by the methods as reported earlier [2][3][4][5].…”

“…There are a large number of preparation, structural and physical investigations in the area of amino acid complexes of metals and interesting structural features are often observed [1]. Although extensive studies have been done on simple metal glycinates [2][3][4][5], the glycino complexes of metal ion with alkali and ammonium ions are scarce [6,7]. Further, there appears to be no report on the corresponding hydrazine analogue.…”