CRYSTAL-STRUCTURE OF [LI(TMEN)2][LI(C(SIME3)3)2] - A MULTINUCLEAR MAGNETIC-RESONANCE STUDY OF TRIS(TRIMETHYLSILYL)METHYLLITHIUM TETRAHYDROFURAN(1/2) AND -N,N,N',N'-TETRAMETHYLETHYLENEDIAMINE (1/1) (TMEN)

被引：44

作者：

AVENT, AG ^{[1
]}

EABORN, C ^{[1
]}

HITCHCOCK, PB ^{[1
]}

LAWLESS, GA ^{[1
]}

LICKISS, PD ^{[1
]}

MALLIEN, M ^{[1
]}

SMITH, JD ^{[1
]}

WEBB, AD ^{[1
]}

WRACKMEYER, B ^{[1
]}

机构：

[1] UNIV BAYREUTH,ANORGAN CHEM LAB,W-8580 BAYREUTH,GERMANY

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1993年 / 21期

关键词：

D O I：

10.1039/dt9930003259

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A single-crystal X-ray study of (Me3Si)3CLi.tmen (tmen = N,N,N',N'-tetramethylethylenediamine) shows that it crystallises with the ionic structure [Li(tmen)2][Li{C(SiMe3)3}2] but that the anions pack with different orientations from those in crystalline [Li(thf)4][Li{C(SiMe3)3}2] (thf = tetrahydrofuran). The H-1, Li-7, C-13 and Si-29 NMR spectra of (MeSi)3CLi.2thf and (Me3Si)3CLi-tmen in thf and toluene, and Li-7, C-13 and Si-29 NMR spectra of the solids are described. Spectra obtained from solutions below ca. 25-degrees-C show the presence of ion pairs [Li(thf)4][Li{C(SiMe3)3}2] or [Li(tmen)2] [Li{C(SiMe3)3}2], together with further species which appear to be different in thf and toluene. Spectra from solutions at higher temperatures show inter-species exchange on the NMR timescale.

引用

页码：3259 / 3264

页数：6

共 26 条

[1] IMPROVEMENTS IN THE PREPARATION AND USE OF "[TRIS(TRIMETHYLSILYL)METHYL]LITHIUM
AIUBE, ZH
EABORN, C
[J]. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1984, 269 (03) : 217 - 218
[2] ALHASHIMI S, UNPUB
[3] REACTIONS OF STERICALLY HINDERED ORGANOZINC AND ORGANOCADMIUM COMPOUNDS CONTAINING FUNCTIONAL SILICON CENTERS - CRYSTAL-STRUCTURES OF ZN[C(SIME3)2(SIME2OCOCF3)]2 AND CD[C(SIME3)2(SIME2OME)]2
ALJUAID, SS
EABORN, C
HABTEMARIAM, A
HITCHCOCK, PB
SMITH, JD
[J]. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1992, 437 (1-2) : 41 - 55
[4] THE CRYSTAL-STRUCTURE OF BIS(TRIS(TRIMETHYLSILYL)METHYL)MAGNESIUM - AN EXAMPLE OF 2-COORDINATE MAGNESIUM IN THE SOLID-STATE
ALJUAID, SS
EABORN, C
HITCHCOCK, PB
MCGEARY, CA
SMITH, JD
[J]. JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1989, (05) : 273 - 274
[5] [Anonymous], 1974, INT TABLES XRAY CRYS, VIV
[6] STRUCTURE AND DYNAMICS OF HINDERED ORGANOSILICON COMPOUNDS - THE CONFORMATIONS OF SYMMETRICAL (ME3SI)3C AND (PHME2SI)3C DERIVATIVES
AVENT, AG
BOTT, SG
LADD, JA
LICKISS, PD
PIDCOCK, A
[J]. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1992, 427 (01) : 9 - 21
[7] BAUR W, 1987, ORGANOMETALLICS, V6, P2371
[8] [BIS(TRIMETHYLSILYL)METHYLENE](DIISOPROPYLAMINO)BORANE - AN ALLENE-TYPE N=B=C-SYSTEM
BOESE, R
PAETZOLD, P
TAPPER, A
[J]. CHEMISCHE BERICHTE-RECUEIL, 1987, 120 (06): : 1069 - 1071
[9] SOME STERICALLY HINDERED LITHIUM ALKYLBROMO-MAGNESATE AND ALKYLCHLORO-MAGNESATE, CADMATES, AND MANGANATES - CRYSTAL AND MOLECULAR-STRUCTURES OF [LI(THF)2(MU-BR)2MG(C(SIME3)3)(THF)], [LI(THF)4][(CD[C(SIME3)3])3(MU-BR)3(MU-3-BR)].0.5C6H12' [(LI(THF))3(MU-3-BR)3(MU-3-OSIME3)CD(C(SIME3)3)], AND [LI(THF)4][(MN[C(SIME3)3])3-(MU-CL)4(THF)] (THF = TETRAHYDROFURAN)H
BUTTRUS, NH
EABORN, C
ELKHELI, MNA
HITCHCOCK, PB
SMITH, JD
SULLIVAN, AC
TAVAKKOLI, K
[J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1988, (02): : 381 - 391
[10] TRIS(TRIMETHYLSILYL)METHYL!LITHIUM - AN ALKYLLITHIUM COMPOUND OF UNUSUAL STABILITY
COOK, MA
EABORN, C
JUKES, AE
WALTON, DRM
[J]. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1970, 24 (03) : 529 - &

← 1 2 3 →