New high nuclearity platinum-ruthenium carbonyl cluster complexes containing a phenylacetylene ligand: Structures and properties

被引：9

作者：

Adams, RD ^{[1
]}

Captain, B ^{[1
]}

Zhu, L ^{[1
]}

机构：

[1] Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA

来源：

ORGANOMETALLICS | 2005年 / 24卷 / 10期

关键词：

D O I：

10.1021/om050175n

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction of the mixed-metal carbonyl cluster complex Ru-5(CO)(15)(C)[Pt(PBu3t)], 3, with PhC2H yielded the new compound PtRu5(CO)(13)(PBu3t)(/mu(5)-C)(mu(3)-PhC2H), 4, in 41% yield. Two new bimetallic cluster complexes, Pt2Ru5(CO)(13)(PBu3t)(2)(mu(5)-C)(mu(3)-PhC2H), 5, and Pt3Ru5(CO)(13)(PBu3t)(3)(mu(5)-C)(mu(3)-PhC2H), 6, were subsequently obtained in 44% and 40% yield, respectively, from the reaction of 4 with an excess of Pt(PBu3t)(2). All products were characterized crystallographically by single-crystal X-ray diffraction techniques. The structure of 4 consists of a square-pyramidal cluster of five ruthenium atoms with a Pt(PBu3t) group capping one of the Ru-3 triangles. A PhC2H ligand bridges one of the PtRu2 triangles. Compounds 5 and 6 are similar to 4 but have in addition one and two Pt(PBu3t) groups bridging one and two edges of the Ru5 square-pyramidal portion of the cluster. Compound 6 was shown to be dynamically active on the P-31 NMR time scale by a process that involves an interchange of two of its inequivalent Pt(PBu3t) groups.

引用

页码：2419 / 2423

页数：5

共 31 条

[1] Addition of Pt(PBut3) groups to Ru5(CO)12(η6-C6H6)(μ5-C).: Synthesis, structures, and dynamical activity [J].

Adams, RD ;

Captain, B ;

Pellechia, PJ ;

Zhu, L .

INORGANIC CHEMISTRY, 2004, 43 (22) :7243-7249

[2] Bimetallic cluster complexes:: The synthesis, structures, and bonding of ruthenium carbonyl cluster complexes containing palladium and platinum with the bulky tri-tert-butyl-phosphine ligand [J].

Adams, RD ;

Captain, B ;

Fu, W ;

Hall, MB ;

Manson, J ;

Smith, MD ;

Webster, CE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (16) :5253-5267

[3] Platinum participation in the hydrogenation of phenylacetylene by Ru5(CO)15(C)[Pt(PBu3t)] [J].

Adams, RD ;

Captain, B ;

Zhu, L .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (10) :3042-3043

[4] Remarkable dynamical opening and closing of platinum and palladium pentaruthenium carbido carbonyl cluster complexes [J].

Adams, RD ;

Captain, B ;

Fu, W ;

Pellechia, PJ ;

Smith, MD .

INORGANIC CHEMISTRY, 2003, 42 (06) :2094-2101

[5] Metallation of PtRu5(CO)16(μ6-C) by using bis(tri-t-butyl-phosphine) complexes of platinum and palladium [J].

Adams, RD ;

Captain, B ;

Fu, W ;

Smith, MD .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2003, 682 (1-2) :113-118

[6] CATALYTIC-HYDROGENATION OF DIPHENYLACETYLENE BY A LAYER-SEGREGATED PLATINUM-RUTHENIUM CLUSTER COMPLEX [J].

ADAMS, RD ;

BARNARD, TS ;

LI, ZY ;

WU, WG ;

YAMAMOTO, JH .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (20) :9103-9113

[7]

ADAMS RD, 1995, COMPREHENSIVE ORGANO, V10, P1, DOI DOI 10.1016/B978-008046519-7.00085-X

[8] Supported bimetallic cluster catalysts [J].

Alexeev, OS ;

Gates, BC .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2003, 42 (08) :1571-1587

[9] Catalytic hydrogenation by triruthenium clusters: A mechanistic study with parahydrogen-induced polarization [J].

Blazina, D ;

Duckett, SB ;

Dyson, PJ ;

Lohmann, JAB .

CHEMISTRY-A EUROPEAN JOURNAL, 2003, 9 (05) :1045-1061

[10]

BLAZINA D, 2004, J CHEM SOC DA, P2108

← 1 2 3 4 →