Synthesis of 12-substituted 1-carba-closo-dodecaborate anions and first hyperpolarizability of the 12-C7H6+-CB11H11- ylide

被引：103

作者：

Grüner, B

Janousek, Z

King, BT

Woodford, JN

Wang, CH

Vsetecka, V

Michli, J

机构：

[1] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA

[2] Acad Sci Czech Republ, Inst Inorgan Chem, CZ-25068 Rez, Czech Republic

[3] Univ Nebraska, Dept Chem, Lincoln, NE 68588 USA

[4] Charles Univ, Dept Organ Chem, Prague 12840 2, Czech Republic

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1999年 / 121卷 / 13期

关键词：

D O I：

10.1021/ja982368q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Salts of 12-alkyl and 12-phenyl derivatives of the CB11H12- anion are prepared in 50-60% yields from the 12-iodo-CB11H11- anion by Pd-catalyzed cross-coupling with Grignard reagents. The tropylium ylide 12-C7H6+-CB11H11- is made in 54% yield by reaction of C7H7+ With CB11H12- Its ground-state dipole moment is 11.25 +/- 0.1 D and its first hyperpolarizability is beta = 236 x 10(-30) esu at 1064 nm, as determined by hyper-Rayleigh scattering measurement. This value is ten times that of p-nitroaniline and is surprisingly large considering that the compound is colorless.

引用

页码：3122 / 3126

页数：5

共 40 条

[1] A new class of carborane compounds for second-order nonlinear optics:: Ab initio molecular orbital study of hyperpolarizabilities for 1-(1′,X′-dicarba-closo-dodecaborane-1′-yl)-closo-dodecaborate dianion (X = 2,7,12) [J].