IMMOBILIZATION AND PHOTOACOUSTIC-SPECTROSCOPY OF N-(2-PYRIDYL)ACETAMIDE CATION COMPLEXES BONDED TO SILICA-GEL

Authors
AIROLDI C ALCANTARA EFC NAKAMURA O DAPAIXAO FJ VARGAS H
Citation
C. Airoldi et al., IMMOBILIZATION AND PHOTOACOUSTIC-SPECTROSCOPY OF N-(2-PYRIDYL)ACETAMIDE CATION COMPLEXES BONDED TO SILICA-GEL, Journal of materials chemistry, 3(5), 1993, pp. 479-482
Citations number
22
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
Journal of materials chemistry → ACNP
ISSN journal
09599428
Volume
3
Issue
5
Year of publication
1993
Pages
479 - 482
Database
ISI
SICI code
0959-9428(1993)3:5<479:IAPON>2.0.ZU;2-E
Abstract
N-(2-Pyridyl)acetamide was covalently immobilized onto silica gel givi ng 1.57 x 10(-4) mol of this molecule per gram of silica. This new bid entate chelate extracts MCl2 (M = Ni, Co, Cu) from ethanol and acetone solutions. The photoacoustic spectra of the solid complexed samples w ere obtained in the visible and near-infrared spectral regions and wer e analysed using ligand field theory. The calculated Racah parameters indicate a tetrahedral geometry for nickel and cobalt and a highly dis torted octahedral geometry for the copper complex.