Synthesis and crystal structure of the 16 e- cationic tungsten(IV) complex [WCp*(4,4′-Me2bipy)Cl2]+BPh4-

被引：6

作者：

Cremer, C ^{[1
]}

Burger, P ^{[1
]}

机构：

[1] Univ Zurich, Inst Anorgan Chem, CH-8057 Zurich, Switzerland

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1999年 / 12期

关键词：

D O I：

10.1039/a902743b

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A general synthetic route to electron rich half-sandwich tungsten(IV) complexes with a series of 4,4'-disubstituted 2,2'-bipyridyl (R(2)bipy) donor ligands of the type [(WCp)-Cp-IV*(R(2)bipy)Cl-3] has been elaborated. The crystal structure and conductivity measurements of the R=methyl derivative evidenced quite weak bonding of the chloride ligands in these complexes. This propensity has been utilized to prepare the novel square pyramidal, 16e(-) Lewis acid [WCp*(Me(2)bipy)Cl-2]+BPh4- through halide abstraction from [WCp*(Me(2)bipy)Cl-3] with NaBPh4. The crystal structures of the cationic complex and its 18e(-) CO adduct [WCp*(Me(2)bipy)(CO)Cl-2]+BPh4- obtained through carbon monoxide addition to the former have been determined.

引用

页码：1967 / 1974

页数：8

共 39 条

[1] NEW PHOSPHINE-CONTAINING CYCLOPENTADIENYLMOLYBDENUM(IV) COMPLEXES WITH AN 18-ELECTRON AND A 16-ELECTRON COUNT - X-RAY STRUCTURE OF CPMOCL3(PME2PH)2 AND CP-ASTERISK-MOCL3L (L = PME3, PMEPH2) [J].

ABUGIDEIRI, F ;

GORDON, JC ;

POLI, R ;

OWENSWALTERMIRE, BE ;

RHEINGOLD, AL .

ORGANOMETALLICS, 1993, 12 (05) :1575-1582

[2] (PENTAMETHYLCYCLOPENTADIENYL)MOLYBDENUM(IV) CHLORIDE - SYNTHESIS, STRUCTURE, AND PROPERTIES [J].

ABUGIDEIRI, F ;

BREWER, GA ;

DESAI, JU ;

GORDON, JC ;

POLI, R .

INORGANIC CHEMISTRY, 1994, 33 (17) :3745-3751

[3]

ADAMS GSB, 1981, J CHEM SOC DALTON, P353, DOI 10.1039/dt9810000353

[4] SYNTHETIC APPLICATIONS OF ACTIVATED METAL CATALYSTS .2. THE FORMATION OF HETEROCYCLIC DIARYLS [J].

BADGER, GM ;

SASSE, WHF .

JOURNAL OF THE CHEMICAL SOCIETY, 1956, (MAR) :616-620

[5] NEW (ETA-C5ME5)M(PR2)X COMPLEXES (M = TA, MO, AND W) - REVERSIBLE P-H BOND ACTIVATION, SP3 C-H BOND ACTIVATION, AND P-C BOND FORMATION [J].

BAKER, RT ;

CALABRESE, JC ;

HARLOW, RL ;

WILLIAMS, ID .

ORGANOMETALLICS, 1993, 12 (03) :830-841

[6] CYCLOPENTADIENYLTUNGSTEN(IV) CHEMISTRY - SYNTHESIS AND CHARACTERIZATION OF (ETA-RING)WX(3)(CO)(2) (RING=C5H5, C(5)H(4)ME, C(5)ME(5)) AND X-RAY STRUCTURE OF (ETA-C(5)ME(5))WBR3(CO)(2) [J].

BLACKBURN, H ;

KRAATZ, HB ;

POLI, R ;

TORRALBA, RC .

POLYHEDRON, 1995, 14 (15-16) :2225-2230

[7]

BURCKHARDT ER, 1987, J AM CHEM SOC, V109, P2022

[8]

Cremer C, 1997, CHIMIA, V51, P650

[9]

CREMER C, UNPUB

[10] (PENTAMETHYLCYCLOPENTADIENYL)MOLYBDENUM BROMIDES AND IODIDES [J].

DESAI, JU ;

GORDON, JC ;

KRAATZ, HB ;

LEE, VT ;

OWENSWALTERMIRE, BE ;

POLI, R ;

RHEINGOLD, AL ;

WHITE, CB .

INORGANIC CHEMISTRY, 1994, 33 (17) :3752-3769

← 1 2 3 4 →