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Title: EXAFS Studies of Some Copper(II) Mixed-Ligand Complexes

Abstract

X-ray K-absorption spectroscopic studies have been carried out on copper (II) mixed-ligand complexes with glutamic acid and aspartic acid as the primary ligands, where as water, pyridine, imidazole and benz-imidazole have been used as secondary ligands. Chemical shifts obtained from the X-ray absorption data have indicated that the glutamic acid complexes are more ionic as compared to their corresponding aspartic acid complexes having similar secondary ligands. Further, we have estimated the average metal-ligand bond distances from the from structure data. For the different complexes studied under the present investigation, the studies reveal that the bonding parameter {alpha}1 decreases with the increase in the percentage covalency of the metal-ligand bond. Thus, the bonding parameter {alpha}1 may be used for the estimation of percentage covalency of the metal-ligand bond in other similar complexes.

Authors:
 [1];  [2];  [3]
  1. Physics Department, Government Post-Graduate Arts and Science College, Ratlam 457001 (India)
  2. Physics Department, Government Girls College, Ratlam 457001 (India)
  3. School of Studies in Physics, Vikram University, Ujjain 456010 (India)
Publication Date:
OSTI Identifier:
21054753
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 882; Journal Issue: 1; Conference: XAFS13: 13. international conference on X-ray absorption fine structure, Stanford, CA (United States), 9-14 Jul 2006; Other Information: DOI: 10.1063/1.2644675; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION SPECTROSCOPY; ASPARTIC ACID; BOND LENGTHS; CHEMICAL BONDS; CHEMICAL SHIFT; COPPER; COPPER COMPLEXES; COPPER COMPOUNDS; COVALENCE; FINE STRUCTURE; GLUTAMIC ACID; IMIDAZOLES; K ABSORPTION; LIGANDS; PYRIDINE; X-RAY SPECTROSCOPY

Citation Formats

Joshi, S K, Katare, R K, and Shrivastava, B D. EXAFS Studies of Some Copper(II) Mixed-Ligand Complexes. United States: N. p., 2007. Web. doi:10.1063/1.2644675.
Joshi, S K, Katare, R K, & Shrivastava, B D. EXAFS Studies of Some Copper(II) Mixed-Ligand Complexes. United States. https://doi.org/10.1063/1.2644675
Joshi, S K, Katare, R K, and Shrivastava, B D. 2007. "EXAFS Studies of Some Copper(II) Mixed-Ligand Complexes". United States. https://doi.org/10.1063/1.2644675.
@article{osti_21054753,
title = {EXAFS Studies of Some Copper(II) Mixed-Ligand Complexes},
author = {Joshi, S K and Katare, R K and Shrivastava, B D},
abstractNote = {X-ray K-absorption spectroscopic studies have been carried out on copper (II) mixed-ligand complexes with glutamic acid and aspartic acid as the primary ligands, where as water, pyridine, imidazole and benz-imidazole have been used as secondary ligands. Chemical shifts obtained from the X-ray absorption data have indicated that the glutamic acid complexes are more ionic as compared to their corresponding aspartic acid complexes having similar secondary ligands. Further, we have estimated the average metal-ligand bond distances from the from structure data. For the different complexes studied under the present investigation, the studies reveal that the bonding parameter {alpha}1 decreases with the increase in the percentage covalency of the metal-ligand bond. Thus, the bonding parameter {alpha}1 may be used for the estimation of percentage covalency of the metal-ligand bond in other similar complexes.},
doi = {10.1063/1.2644675},
url = {https://www.osti.gov/biblio/21054753}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 882,
place = {United States},
year = {Fri Feb 02 00:00:00 EST 2007},
month = {Fri Feb 02 00:00:00 EST 2007}
}