Jd. Anastassopoulou et al., RAMAN-SPECTRA AND CONFORMATIONAL-ANALYSIS OF LONG-METHYLENE-CHAIN-DIAMINE-COPPER COMPLEXES, Journal of molecular structure, 415(3), 1997, pp. 225-237
Solid powders of long methylene chain diamines NH2-(CH2)(n)-NH2 with n
= 10, 12, and their newly synthesized copper complexes were studied b
y laser visible Raman spectroscopy. In this study, we mainly focus on
the intensity variations of both the symmetrical and anti-symmetrical
stretching vibrational modes of the CH2 groups situated in the high-fr
equency range 2800-3000 cm(-1) and on the skeletal vibrations (C-C bon
ding) in the region 1050-1150 cm(-1), which shows an unusual behaviour
upon complexation of the diamines with the copper ion. (C) 1997 Elsev
ier Science B.V.