Polymeric Low-Valence Platinum-Phenanthroline Complexes as Precursors of Platinum Colloids Full article
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Inorganica Chimica Acta
ISSN: 0020-1693 , E-ISSN: 1873-3255 |
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Output data | Year: 1998, Volume: 280, Number: 1-2, Pages: 339-347 Pages count : 9 DOI: 10.1016/S0020-1693(98)00234-5 | ||||
Tags | Low-valence complexes, Phenanthroline complexes, Platinum colloids, Platinum complexes | ||||
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Abstract:
It was found that the reduction of Pt(II), Pt(III) and Pt(I,III) acetates with H2 in the presence of 1,10-phenanthroline (phen), according to the standard procedure for the synthesis of palladium-561 giant clusters, resulted, unexpectedly, in the high-nuclear Pt(I) complex of the empirical composition Pt8phen3(OAc)4(OH)4(H2O)6 instead of the expected platinum colloid. Data of electron microscopy (TEM, HREM), small-angle X-ray scattering (SAXS), EXAFS and thermal analysis (DTA-TG) combined with elemental microanalysis all point to a loose structure of the obtained complex, with a minor PtPt bonding (average coordination number for the PtPt bonds is about 1). Variation of the preparation procedure resulted in a series of polymeric phen-platinum complexes, containing Pt atoms in oxidation states ranging from (+1) to (+0.3), and whose main structural features were established by the above-mentioned techniques. Giant clusters with dense PtPtOx cores (coordination number for the PtPt bonds is about 6) were obtained by gradual heating of the precursor Pt complex to about 200°C as well as by a modified preparation procedure at 20°C.
Cite:
Moiseev I.I.
, Rudy R.I.
, Cherkashina N.V.
, Shubochkin L.K.
, Kochubey D.I.
, Novgorodov B.N.
, Kryukova G.A.
, Kolomiychuk V.N.
, Vargaftik M.N.
Polymeric Low-Valence Platinum-Phenanthroline Complexes as Precursors of Platinum Colloids
Inorganica Chimica Acta. 1998. V.280. N1-2. P.339-347. DOI: 10.1016/S0020-1693(98)00234-5 WOS Scopus РИНЦ
Polymeric Low-Valence Platinum-Phenanthroline Complexes as Precursors of Platinum Colloids
Inorganica Chimica Acta. 1998. V.280. N1-2. P.339-347. DOI: 10.1016/S0020-1693(98)00234-5 WOS Scopus РИНЦ
Dates:
Submitted: | Feb 3, 1998 |
Accepted: | May 6, 1998 |
Published print: | Oct 15, 1998 |
Published online: | Dec 3, 1998 |
Identifiers:
Web of science | WOS:000076202900044 |
Scopus | 2-s2.0-0038738769 |
Elibrary | 13292970 |
Chemical Abstracts | 1998:639489 |
Chemical Abstracts (print) | 129:339077 |
OpenAlex | W2095278101 |