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Steady state and pulse radiolysis of Pd(II) complexes in aqueous solutions: effect of coordinating ligands

Conference:

Abstract

Steady state and pulse radiolysis investigations on [Pd(en) (1-hypro)]{sup +} (where en = ethylenediammine and 1-hypro = 4-hydroxyl 1-proline) have been carried out in aqueous medium. Fine Pd metal precipitation is observed with e{sub aq}{sup -} while, with {sup .}OH a new optically active species having a positive Cotton effect in the 260 nm region, is formed. The physical parameters of the transients formed, have been evaluated by pulse radiolysis technique. The role of vacant {pi}{sup *} orbitals available on the bipy ligand in stabilizing the oxidation state of Pd(II) during the reaction with e{sub aq}{sup -} is discussed. The site of attack of e{sub aq}{sup -} and {sup .}OH is confirmed to be the Pd metal centre in complexes with coordinating ligands lacking vacant {pi}{sup *} orbitals. (author). 1 ref.
Authors:
Mohan, Hari; Patel, R P; Vaidya, M A; Kulshreshtha, S K [1] 
  1. Bhabha Atomic Research Centre, Bombay (India). Chemistry Division
Publication Date:
Dec 31, 1994
Product Type:
Conference
Report Number:
CONF-9401116-
Reference Number:
SCA: 400600; PA: AIX-26:062489; EDB-95:131110; SN: 95001457659
Resource Relation:
Conference: TRSP-94: Trombay symposium on radiation and photochemistry, Bombay (India), 17-21 Jan 1994; Other Information: PBD: 1994; Related Information: Is Part Of Trombay symposium on radiation and photochemistry. Preprints vol.2: contributed papers; PB: 407 p.
Subject:
40 CHEMISTRY; PALLADIUM COMPLEXES; RADIOLYSIS; AQUEOUS SOLUTIONS; CHEMICAL REACTION KINETICS; GAMMA RADIATION; HYDROXYL RADICALS; OPTICAL ACTIVITY; PALLADIUM; PRECIPITATION; PULSED IRRADIATION; SOLVATED ELECTRONS
OSTI ID:
100370
Research Organizations:
Department of Atomic Energy, Bombay (India). Board of Research in Nuclear Sciences
Country of Origin:
India
Language:
English
Other Identifying Numbers:
TRN: IN9501085062489
Submitting Site:
INIS
Size:
pp. 25-27
Announcement Date:
Jan 16, 2004

Conference:

Citation Formats

Mohan, Hari, Patel, R P, Vaidya, M A, and Kulshreshtha, S K. Steady state and pulse radiolysis of Pd(II) complexes in aqueous solutions: effect of coordinating ligands. India: N. p., 1994. Web.
Mohan, Hari, Patel, R P, Vaidya, M A, & Kulshreshtha, S K. Steady state and pulse radiolysis of Pd(II) complexes in aqueous solutions: effect of coordinating ligands. India.
Mohan, Hari, Patel, R P, Vaidya, M A, and Kulshreshtha, S K. 1994. "Steady state and pulse radiolysis of Pd(II) complexes in aqueous solutions: effect of coordinating ligands." India.
@misc{etde_100370,
title = {Steady state and pulse radiolysis of Pd(II) complexes in aqueous solutions: effect of coordinating ligands}
author = {Mohan, Hari, Patel, R P, Vaidya, M A, and Kulshreshtha, S K}
abstractNote = {Steady state and pulse radiolysis investigations on [Pd(en) (1-hypro)]{sup +} (where en = ethylenediammine and 1-hypro = 4-hydroxyl 1-proline) have been carried out in aqueous medium. Fine Pd metal precipitation is observed with e{sub aq}{sup -} while, with {sup .}OH a new optically active species having a positive Cotton effect in the 260 nm region, is formed. The physical parameters of the transients formed, have been evaluated by pulse radiolysis technique. The role of vacant {pi}{sup *} orbitals available on the bipy ligand in stabilizing the oxidation state of Pd(II) during the reaction with e{sub aq}{sup -} is discussed. The site of attack of e{sub aq}{sup -} and {sup .}OH is confirmed to be the Pd metal centre in complexes with coordinating ligands lacking vacant {pi}{sup *} orbitals. (author). 1 ref.}
place = {India}
year = {1994}
month = {Dec}
}