MECHANISM FOR THE EXCHANGE PROCESSES OBSERVED IN THE COMPOUNDS [M(ETA-C5H5)2(ETA-RCH=CH2)H] (M = NB, TA)

被引：37

作者：

GREEN, MLH

SELLA, A

WONG, LL

机构：

[1] Inorganic Chemistry Laboratory, Oxford OX1 3QR, South Parks Road

来源：

ORGANOMETALLICS | 1992年 / 11卷 / 07期

关键词：

D O I：

10.1021/om00043a058

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The fluxional processes in the compounds exo-[M(eta-C5H5)2(eta-CH3CH=CH2)H] (M = Nb, Ta) have been investigated by magnetization and spm-saturation transfer and two-dimensional exchange NMR techniques. Rate constants for three separate processes have been determined. A mechanism involving agostic eta-2-alkyl ligands is proposed.

引用

收藏

页码：2650 / 2659

页数：10

相关论文

共 90 条

[21] ACID-CATALYZED ISOMERIZATION AND DEUTERIUM-EXCHANGE OF RHENIUM ALKENE COMPLEXES VIA IN-PLACE ROTATION OF AN AGOSTIC ALKYLRHENIUM CATION [J].

CASEY, CP ;

YI, CS .

ORGANOMETALLICS, 1991, 10 (01) :33-35

[22] REACTIONS BETWEEN BIS(STYRENE)BIS(TRIPHENYLPHOSPHINE)-RUTHENIUM(0) AND CYCLOHEXENE - ITS RELEVANCE TO ALKENE ISOMERIZATION REACTION AND TO CATALYTIC DISPROPORTIONATION OF CYCLOHEXENE [J].

CHAUDRET, BN ;

COLEHAMILTON, DJ ;

WILKINSON, G .

ACTA CHEMICA SCANDINAVICA SERIES A-PHYSICAL AND INORGANIC CHEMISTRY, 1978, 32 (08) :763-769

[23]

COLLMAN JP, 1987, PRINCIPLES APPLICATI

[24] RATES OF REARRANGEMENT OF PYRAZOLYLBORATE COMPLEXES OF MOLYBDENUM WHICH CONTAIN STRONG ALIPHATIC HYDROGEN TO MOLYBDENUM INTERACTIONS - ESTIMATES OF STRENGTH OF INTERACTION [J].

COTTON, FA ;

STANISLO.AG .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1974, 96 (16) :5074-5082

[25] PREPARATION OF THE COMPLEXES [(C5ME4H)2MX2] (M = TI, ZR AND X = CL, ALKYL, ARYL, CO) - DYNAMIC NMR-STUDY OF STERIC HINDRANCE OF THE ROTATION OF METAL-BONDED AROMATIC-GROUPS [J].

COURTOT, P ;

LABED, V ;

PICHON, R ;

SALAUN, JY .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1989, 359 (01) :C9-C13

[26] PROTONATED OPEN AND HALF-OPEN RUTHENOCENES EXHIBITING AGOSTIC INTERACTIONS WITH C-H BOND RUPTURE INVOLVED IN THE MOST FACILE DYNAMIC PROCESS [J].

COX, DN ;

ROULET, R .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1989, (03) :175-176

[27] THE SYNTHESIS AND STRUCTURE OF [CO(ETA-C5ME5)ET(P(PARA-TOLYL)3)] CATION - A MODEL FOR THE BETA-ELIMINATION TRANSITION-STATE [J].

CRACKNELL, RB ;

ORPEN, AG ;

SPENCER, JL .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1984, (06) :326-328

[28] SPECTROSCOPIC AND THEORETICAL-STUDIES ON [CO(ETA-C5ME5)ET(PME2PH)]+ - EVIDENCE FOR DYNAMIC INVERSION OF CHIRALITY AT COBALT [J].

CRACKNELL, RB ;

ORPEN, AG ;

SPENCER, JL .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1986, (13) :1005-1006

[29] SYNTHESIS OF MONOMERIC PERMETHYLYTTROCENE DERIVATIVES - THE CRYSTAL-STRUCTURES OF ETA-5-C5H5YN(SIME3)2 AND ETA-5-C5H5YCH(SIME3)2 [J].

DENHAAN, KH ;

DEBOER, JL ;

TEUBEN, JH ;

SPEK, AL ;

KOJICPRODIC, B ;

HAYS, GR ;

HUIS, R .

ORGANOMETALLICS, 1986, 5 (08) :1726-1733

[30]

DEROME AE, 1989, NEW J CHEM, V13, P747

← 1 2 3 4 5 6 7 8 9 →