Metal-Metal Distances at the Limit: Cr-Cr 1.73 Å - the Importance of the Ligand and its Fine Tuning

被引：91

作者：

Noor, Awal ^{[2
]}

Glatz, Germund ^{[2
]}

Mueller, Robert ^{[1
]}

Kaupp, Martin ^{[1
]}

Demeshko, Serhiy ^{[3
]}

Kempe, Rhett ^{[2
]}

机构：

[1] Univ Wurzburg, Inst Anorgan Chem, D-97074 Wurzburg, Germany

[2] Univ Bayreuth, Lehrstuhl Anorgan Chem 2, D-95440 Bayreuth, Germany

[3] Univ Gottingen, Inst Anorgan Chem, D-37077 Gottingen, Germany

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2009年 / 635卷 / 08期

关键词：

Chemical bonding; Chromium; Metal-metal bonds; Multiple bonds; N ligands; ELECTRONIC-STRUCTURE; BOND; COMPOUND;

D O I：

10.1002/zaac.200900175

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis and structure of a homobimetallic chromium complex is reported. The ligand used to stabilise the quintuply bonded metals is a sterically fine-tuned guanidinate. A chromium-chromium bond length of 1.7293(12) angstrom was observed. It is the shortest metal-metal distance reported for a stable compound yet.

引用

页码：1149 / 1152

页数：4

共 22 条

[1] A SIMPLE MEASURE OF ELECTRON LOCALIZATION IN ATOMIC AND MOLECULAR-SYSTEMS [J].

BECKE, AD ;

EDGECOMBE, KE .

JOURNAL OF CHEMICAL PHYSICS, 1990, 92 (09) :5397-5403

[2] ELECTRONIC-STRUCTURE AND VIBRATIONAL FREQUENCY OF CR-2 [J].

BONDYBEY, VE ;

ENGLISH, JH .

CHEMICAL PHYSICS LETTERS, 1983, 94 (05) :443-447

[3] RATIONAL PREPARATION AND STRUCTURAL STUDY OF A DICHROMIUM ORTHO-OXYPHENYL COMPOUND - SHORTEST METAL-TO-METAL BOND YET OBSERVED [J].

COTTON, FA ;

KOCH, S .

INORGANIC CHEMISTRY, 1978, 17 (07) :2021-2024

[4]

Edema J.J. H., 1991, Comments Inorg. Chem, V4, P195

[5]

EFREMOV YM, 1974, OPT SPEKTROSK+, V36, P654

[6] Theoretical chemistry - The six-bond bound [J].

Frenking, Gernot ;

Tonner, Ralf .

NATURE, 2007, 446 (7133) :276-277

[7] Highly efficient hydrosilylation of alkenes by organoyttrium catalysts with sterically demanding amidinate and guanidinate ligands [J].

Ge, Shaozhong ;

Meetsma, Auke ;

Hessen, Bart .

ORGANOMETALLICS, 2008, 27 (13) :3131-3135

[8] ZUR EXISTENZ SUBSTITUIERTER CHROMPHENYLVERBINDUNGEN [J].

HEIN, F ;

TILLE, D .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1964, 329 (1-6) :72-82

[9] Breaking the 1.80 Å Barrier of the Cr-Cr Multiple Bond Between CrII Atoms [J].

Horvath, Steven ;

Gorelsky, Serge I. ;

Gambarotta, Sandro ;

Korobkov, Ilia .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (51) :9937-9940

[10]

Hsu C-W., 2008, Angew. Chem, V120, P10081

← 1 2 3 →