EPR Spectroscopy Study of the Radical Cation Cluster (η5-C5H5)(CO)5ReFePt(μ3-C=CHPh)(η2-Ph2P(CH2)2PPh2)

被引：0

作者：

Maksimov, Nikolay G. ^{[1
]}

Verpekin, Victor V. ^{[1
]}

Zimonin, Dmitry, V ^{[1
]}

Burmakina, Galina, V ^{[1
,2
]}

Chudin, Oleg S. ^{[1
]}

Rubaylo, Anatoly, I ^{[1
,2
]}

机构：

[1] FRC Krasnoyarsk Sci Ctr SB RAS, Inst Chem & Chem Technol SB RAS, 50-24 Akademgorodok, Krasnoyarsk 660036, Russia

[2] Siberian Fed Univ, 79 Svobodny, Krasnoyarsk 660041, Russia

来源：

JOURNAL OF SIBERIAN FEDERAL UNIVERSITY-CHEMISTRY | 2019年 / 12卷 / 04期

关键词：

EPR spectroscopy; radical cation; redox transformations; trinuclear clusters; vinylidene ligands; rhenium; iron; platinum; diphosphine ligand; REFEPT METAL CORES; PHENYLVINYLIDENE CLUSTERS; COMPLEXES; CHEMISTRY; IRON;

D O I：

10.17516/1998-2836-0152

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The chemical oxidation of the cluster CpReFePt(mu(3)-C=CHPh)(CO)(5)(dppe) (Cp = eta(5)-C5H5, dppe = eta(2)-Ph2P(CH2)(2)PPh2) resulted in a radical cation [CpReFePt(mu(3)-C=CHPh)(CO)(5)(dppe)](+center dot) that is sufficiently stable only at low temperature. An electronic structure of the radical cation was studied by EPR and following parameters were obtained by comparison of the experimental and model spectrum: g(x) = 2.070 g(y) = 2.0295 g(z) = 1.997; A(x)(P-31) = 17 A(y)(P-31) = 49 A(z)(P-31) = 35 (Gs);A(x)(Pt-195) = 62 A(y)(Pt-195) = 45 A(z)(Pt-195) = 105 (Gs). An unpaired electron is seen to be mainly concentrated on the iron atom (85-90%) and partially on the platinum atom (10-15%). Further transformation of the radical cation led to the formation of the binuclear complex Cp(CO)(2)RePt(mu-C=CHPh)(dppe) and the Fe-carbonyl fragment.

引用

页码：573 / 579

页数：7

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