Cp*TaCl2B4H8:: Synthesis, crystal structure and spectroscopic characterization of an air-stable, electronically unsaturated, chiral tantalaborane

被引：26

作者：

Aldridge, S ^{[1
]}

Hashimoto, H ^{[1
]}

Shang, MY ^{[1
]}

Fehlner, TP ^{[1
]}

机构：

[1] Univ Notre Dame, Dept Chem & Biochem, Notre Dame, IN 46556 USA

来源：

CHEMICAL COMMUNICATIONS | 1998年 / 02期

关键词：

D O I：

10.1039/a706483g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Reaction between Cp*TaCl4(Cp* = eta(5)-C5H5) and BH3 . thf at 40 degrees C yields the pale red electronically unsaturated cluster Cp*TaCl2B4H8 1 which despite having two electrons fewer than the seven pairs required for the observed square pyramidal geometry is stable in air; viewed as a cluster, 1 is the first example of an unsaturated cluster containing a single metal atom; viewed as a chiral 16-electron organometallic complex it is isoelectronic with Cp(C2B9H11)TaCl2 and Cp[(Me3Si)(2)C2B4H4] TaCl2.

引用

页码：207 / 208

页数：2

共 19 条

[1] FACILE ACTIVATION OF HYDROGEN BY AN UNSATURATED METAL-CARBONYL CLUSTER - THE ADDITION OF H-2 TO OS4(CO)11(MU-4-S)(MU-4-HC2CO2ME) [J].

ADAMS, RD ;

WANG, S .

ORGANOMETALLICS, 1986, 5 (06) :1272-1274

[2] LIGAND-ASSISTED ADDITION-REACTIONS .1. ALKYNE ADDITIONS AND COUPLINGS IN THE UNSATURATED CLUSTER COMPLEXES OS4(CO)11(MU-4-RC2CO2ME)(MU-4-S) (R = H AND CO2ME) [J].

ADAMS, RD ;

WANG, S .

ORGANOMETALLICS, 1987, 6 (04) :739-748

[3] Origins of unsaturation in group 6 metallaboranes. Synthesis, crystal structure, and molecular orbital calculations for (Cp*MoCl)(2)B3H7 (Cp* = pentamethylcyclopentadienyl) [J].

Aldridge, S ;

Shang, MY ;

Fehlner, TP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (45) :11120-11121

[4] PENTAMETHYLCYCLOPENTADIENYL-BOROLLIDE COMPLEXES OF TANTALUM - NEW GROUP-4 METALLOCENE MIMICS [J].

BAZAN, GC ;

DONNELLY, SJ ;

RODRIGUEZ, G .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1995, 117 (09) :2671-2672

[5] BINUCLEAR TANTALUM HYDRIDE COMPLEXES [J].

BELMONTE, PA ;

SCHROCK, RR ;

DAY, CS .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1982, 104 (11) :3082-3089

[6] THE 1ST OSMABORANES AND A NEW IRIDATETRABORANE [J].

BOULD, J ;

GREENWOOD, NN ;

KENNEDY, JD .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1983, 249 (01) :11-21

[7] ELECTRONIC-STRUCTURE AND BONDING IN METHYL(PENTACARBONYL)MANGANESE AND PERFLUOROMETHYL(PENTACARBONYL)MANGANESE [J].

HALL, MB ;

FENSKE, RF .

INORGANIC CHEMISTRY, 1972, 11 (04) :768-&

[8] HIGH-YIELD SYNTHESIS AND CHARACTERIZATION OF CHROMABORANES - COMPARISON OF THE GEOMETRIC, ELECTRONIC, AND CHEMICAL-PROPERTIES OF AN ELECTRONICALLY UNSATURATED (ETA(5)-C(5)ME(5))(2)CR2B4H8 CLUSTER WITH ITS SATURATED DERIVATIVE (ETA(5)-C(5)ME(5))(2)CR-2(CO)(2)B4H6 [J].

HO, JW ;

DECK, KJ ;

NISHIHARA, Y ;

SHANG, MY ;

FEHLNER, TP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1995, 117 (41) :10292-10299

[9] SYNTHESIS OF ENDO-CP2TAH2(BO2C6H4) AND EXO-CP2TAH2(BO2C6H4) - REGIOISOMERS OF THE FIRST TANTALUM BORYL COMPLEXES [J].

LANTERO, DR ;

MOTRY, DH ;

WARD, DL ;

SMITH, MR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (23) :10811-10812

[10]

LAVIGNE G, 1986, METAL CLUSTERS CATAL, P43

← 1 2 →