Premium
Vibrational study of nicotinic acid complexes with different central ions
Author(s) -
Lewandowski Włodzimierz,
Barańska Halina,
Mościbroda Piotr
Publication year - 1993
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250241202
Subject(s) - chemistry , raman spectroscopy , potassium , ion , mercury (programming language) , ionic bonding , zinc , infrared , inorganic chemistry , organic chemistry , physics , computer science , optics , programming language
Assignments are proposed for the IR and Raman spectra of potassium, zinc and mercury(II) nicotinates and for the UV‐visible spectra of the f → f transition for erbium nicotinate. The influence of K, Zn, Hg(II), Nd(III), Dy(III) and Er(III) on the aromatic system of nicotinic acid was studied. There are essential differences in the number, wavenumber and intensity of aromatic system bands in the ranges of the ring modes, (1610–1400 cm −1 ), γ(CH) (970–700 cm −1 ) and Φ(CC) (700–650 cm −1 ), depending on the central ion. Potassium and mercury(II) perturb but lanthanides stabilize the aromatic system of nicotinic acid. The wavenumbers and intensities of some vibrational bands of the aromatic system depend systematically on the ionic potentials of the metals.