Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/8837
Title: X-ray K-absorption fine structure studies on some copper(II) complexes
Authors: Vyas, R K
Joshi, S K
Shrivastava, B D
Shah, M C
Prasad, J
Keywords: X-ray K-absorption spectra
Copper (II) complexes
Backscattering shift
Issue Date: Jul-2005
Publisher: CSIR
Series/Report no.: G01J3/28
Abstract:  The X-ray K-absorption spectra of copper and arsenic in complexes [Cu( φ3AsO)2X2] and [Cu( φ3PO)2X2], where X = Cl or Br and φ = C6H5, have been studied using a 40 cm bent crystal spectrograph. Various X-ray absorption parameters such as edge shift, phase parameters and bond-distances have been estimated. Our studies reveal that triphenylarsine oxide is a better s-donor than triphenylphosphine oxide. The splitting of the main edge K into K1 and K2 components have been explained. The existence of the white line have been attributed to the transition of K-electrons into a high density of normally unoccupied states with p symmetry in the neighbourhood of the copper or arsenic atom. Further, our studies on phase shift determination indicate that variation in the first or second coordination environment around the central absorbing atom has a dominant effect on the values of backscattering phase shifts.
Description: 509-516
URI: http://hdl.handle.net/123456789/8837
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.43(07) [July 2005]

Files in This Item:
File Description SizeFormat 
IJPAP 43(7) 509-516.pdf228.64 kBAdobe PDFView/Open


Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.