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IJPAP Vol.42(08) [August 2004] >


Title: Infrared spectra of charge transfer complexes of bis(N-phenylsalicylaldiminato) CuII
Authors: Prajapati, J H
Patel, S G
Oza, A T
Keywords: Charge transfer complexes
Pierls semiconductor
Salicylaldiminato
Infrared spectra
Optical conductivity
Infrared spectra
Band assignment
Issue Date: Aug-2004
Publisher: CSIR
IPC CodeG01N 30/96
Abstract: The charge transfer complexes of bis(N-phenylsalicylaldiminato) CuII with organic acceptors like TCNQ, TCNE, TNF, DDQ, chloranil, and iodine are prepared and studied with Fourier transform infrared spectroscopy. The spectrum of the donor chelate shows systematic steps in transmission above 2500 cm-1, which are analyzed by its first-derivative. Fine structure is also seen pronounced in the charge transfer complexes. Two or three electronic absorption envelopes are identified in all the complexes. The nature of transitions (whether direct or indirect), band tailing effects and free-carrier absorption are also analyzed. TNF complex shows free-carrier absorptions in a very wide range above 1800 cm-1.
Page(s): 572-580
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.42(08) [August 2004]

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