Pt and Pt/Cu carbonyl clusters synthesized by radiolysis

In the mixed solvent: 50/50% v/v water/2-propanol, [Pt 3(CO) 6] n 2− clusters with n = 3−10 have been obtained by irradiating solutions containing K 2PtCl 4 under 1 atm CO. n is deduced from the very typical UV-visible and IR absorption spectra. The reduction occurs by a combined effect of CO and of...

Full description

Saved in:
Bibliographic Details
Published in:Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 1996-02, Vol.47 (2), p.263-268
Main Authors: Le Gratiet, B., Remita, H., Picq, G., Delcourt, M.O.
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
General and physical chemistry
Physical chemistry of induced reactions (with radiations, particles and ultrasonics)
Radiation chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In the mixed solvent: 50/50% v/v water/2-propanol, [Pt 3(CO) 6] n 2− clusters with n = 3−10 have been obtained by irradiating solutions containing K 2PtCl 4 under 1 atm CO. n is deduced from the very typical UV-visible and IR absorption spectra. The reduction occurs by a combined effect of CO and of the radicals produced by radiolysis (radiocatalysis). The synthesis is selective: the nuclearity n can be chosen by adjusting the dose (high doses yield low n values). Increasing the Pt salt concentration leads to CO-stabilized subcolloid particles. Intermetallic cluster compounds are expected from solutions containing two metal salts: bimetallic Pt/Cu carbonyl clusters have been obtained. Two distinct compounds have been characterized by their UV-visible spectra. Attempts with Pt/Ru and Pt/Sn systems were unsuccessful.
ISSN:0969-806X
1879-0895
DOI:10.1016/0969-806X(94)00178-M