Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12779/6271
Title: Cooperative Effects of Electron Donors and Acceptors for the Stabilization of Elusive Metal Cluster Frameworks: Synthesis and Solid-State Structures of [Pt19(CO)24(μ4-AuPPh3)3]−and [Pt19(CO)24{μ4-Au2(PPh3)2}2]
Authors: Ceriotti, A.
Macchi, P.
Sironi, A.
El Afefey, S.
Daghetta, M.
Fedi, S.
Fabrizi De Biani, Fabrizia 
Della Pergola, R.
Issue Date: 2013
Project: None 
Journal: INORGANIC CHEMISTRY
Abstract: 
The anionic cluster [Pt-19(CO)(22)](4-) (1), of pentagonal symmetry, reacts with CO and AuPPh3+ fragments. Upon increasing the Au:Pt-19, molar ratio, different species are sequentially formed, but only the last two members of the series could be characterized by X-ray diffraction, namely, [Pt-19(CO)(24)(mu(4)-AuPPh3)(3)](-) (2) and [Pt-19(CO)(24){mu(4)-Au-2(PPh3)(2)}(2)] (3).The metallic framework of the starting cluster is completely modified after the addition of CO and AuL+, and both products display the same platinum core of trigonal symmetry, with closely packed metal atoms. The three AuL+ units cap three different square faces in 2, whereas four AuL+ fragments are grouped in two independent bimetallic units in the neutral cluster 3. Electrochemical and spectroelectrochemical studies on 2 showed that its redox ability is comparable with that of the homometallic 1.
Description: 
14464
URI: http://hdl.handle.net/20.500.12779/6271
ISSN: 0020-1669
DOI: 10.1021/ic302282y
Appears in Collections:Publications

Show full item record

Page view(s)

14
Last Week
0
Last month
8
checked on May 5, 2021

Google ScholarTM

Check

Altmetric


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