STERIC EFFECTS IN HETEROBORANES .6. 1-PH-2-(T)BUME(2)SI-1,2-CLOSO-C2B10H10

被引：13

作者：

MCGRATH, TD ^{[1
]}

WELCH, AJ ^{[1
]}

机构：

[1] HERIOT WATT UNIV,DEPT CHEM,EDINBURGH EH14 4AS,MIDLOTHIAN,SCOTLAND

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1995年 / 51卷

关键词：

D O I：

10.1107/S0108270194009078

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The new icosahedral closo-dicarbaborane 1-phenyl-2-(tert-butyldimethylsilyl)-1,2-dicarba-closo-dodecaborane(12), C14H30B10Si, has been prepared and its structure determined by a crystallographic study. Although some relief from steric crowding is achieved by a bending back of the cage-bound phenyl substituent, the bulk of the tert-butyldimethylsilyl group severely restricts any bending back of the silyl moiety. In consequence, some deformation of the cage has resulted, Most significantly, the C-cage-C-cage connectivity suffers a considerable extension: the C(1)-C(2) distance is 1.745 (6) Angstrom, one of the longest observed in systems of this type.

引用

页码：654 / 657

页数：4

共 13 条

[1] STERIC EFFECTS IN HETEROBORANES .7. THE SYNTHESIS AND CHARACTERIZATION OF ARENE-RUTHENIUM COMPLEXES OF C-SUBSTITUTED CARBABORANES - MOLECULAR-STRUCTURES OF 1-PH-3-(MES)-3,1,2-CLOSO-RUC2B9H10 (MES=C6H3-1,3,5) AND 1-PH-2-ME-3-(P-CYM)-3,1,2-CLOSO-RUC2B9H9 (P-CYM=C(6)H(4)ME-1-PR-I-4), THE LATTER SHOWING AN INCIPIENT DEFORMATION [J].

COWIE, J ;

REID, BD ;

WATMOUGH, JMS ;

WELCH, AJ .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1994, 481 (02) :283-293

[2]

GOULD RO, 1986, CALC PROGRAM CRYSTAL

[3]

GOULD RO, 1986, CADABS PROGRAM DATA

[4] STRUCTURE OF 1,2-DIPHENYLCARBABORANE, 1,2-PH2-1,2-CLOSO-C2B10H10 [J].

LEWIS, ZG ;

WELCH, AJ .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1993, 49 :705-710

[5] STERICALLY INDUCED OPENING OF A CLOSO CARBAMETALLABORANE - SYNTHESIS AND CHARACTERIZATION OF 1,2-PH2-3-(ETA-C5ME5)-3,1,2-PSEUDOCLOSO-RHC2B9H9 [J].

LEWIS, ZG ;

WELCH, AJ .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1992, 430 (03) :C45-C50

[6]

LINDEMAN SV, 1988, MAKROMOL CHEM, V189, P471

[7] STERIC EFFECTS IN HETEROBORANES .5. 1-PH-2-ME(3)SI-1,2-CLOSO-C2B10H10 [J].

MCGRATH, TD ;

WELCH, AJ .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1995, 51 :651-654

[8] STERIC EFFECTS IN HETEROBORANES .4. 1-PH-2-BR-1,2-CLOSO-C2B10H(10) [J].

MCGRATH, TD ;

WELCH, AJ .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1995, 51 :649-651

[9] STERIC EFFECTS IN HETEROBORANES .3. 1-PH-2-ME-1,2-CLOSO-C2B10H10 [J].

MCGRATH, TD ;

WELCH, AJ .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1995, 51 :646-649

[10]

REID BD, 1992, THESIS U EDINBURGH S

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