A free cyclotrigermenium cation with a 2 pi-electron system

被引:131
作者
Sekiguchi, A [1 ]
Tsukamoto, M [1 ]
Ichinohe, M [1 ]
机构
[1] TOHOKU UNIV,GRAD SCH SCI,AOBA KU,SENDAI,MIYAGI 98077,JAPAN
关键词
D O I
10.1126/science.275.5296.60
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The reaction of tetrakis(tri-tert-butylsilyl)cyclotrigermene with trityl tetraphenylborate in benzene produces tris(tri-teri-butylsilyl)cyclotrigermenium tetraphenylborate [(tert-Bu(3)SiGe)(3)(+)BPh(4)(-)], which can be isolated as a yellow solid that is stable in the absence of air. The crystal structure of the cyclotrigermenium ion reveals a free germyl cation with a 2 pi-electron system. The three germanium atoms form an equilateral triangle similar to the carbon analog, the cyclopropenium ion.
引用
收藏
页码:60 / 61
页数:2
相关论文
共 42 条
[1]   THE GEOMETRY OF SMALL RINGS .4. MOLECULAR-GEOMETRY OF CYCLOPROPENE AND ITS DERIVATIVES [J].
ALLEN, FH .
TETRAHEDRON, 1982, 38 (05) :645-655
[2]   Solvated silylium cations: Structure determination by NMR spectroscopy and the NMR/Ab initio/IGLO method [J].
Arshadi, M ;
Johnels, D ;
Edlund, U ;
Ottosson, CH ;
Cremer, D .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (21) :5120-5131
[3]   SYNTHESIS OF THE S-TRIPHENYLCYCLOPROPENYL CATION [J].
BRESLOW, R .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1957, 79 (19) :5318-5318
[4]   THE SYM-TRIPHENYLCYCLOPROPENYL CATION, A NOVEL AROMATIC SYSTEM [J].
BRESLOW, R ;
YUAN, C .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1958, 80 (22) :5991-5994
[5]  
Breslow R., 1971, Pure Appl. Chem, V28, P111, DOI DOI 10.1351/PAC197128020111
[6]   A SOLID SILAETHENE - ISOLATION AND CHARACTERIZATION [J].
BROOK, AG ;
ABDESAKEN, F ;
GUTEKUNST, B ;
GUTEKUNST, G ;
KALLURY, RK .
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1981, (04) :191-192
[7]   STABLE SOLID SILAETHYLENES [J].
BROOK, AG ;
NYBURG, SC ;
ABDESAKEN, F ;
GUTEKUNST, B ;
GUTEKUNST, G ;
KALLURY, RKMR ;
POON, YC ;
CHANG, YM ;
WONGNG, W .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1982, 104 (21) :5667-5672
[8]   SILICONIUM ION QUESTION [J].
CORRIU, RJP ;
HENNER, M .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1974, 74 (01) :1-28
[9]   GROUP-14 ANALOGS OF THE CYCLOPROPENIUM ION - DO THEY FAVOR CLASSICAL AROMATIC STRUCTURES [J].
JEMMIS, ED ;
SRINIVAS, GN ;
LESZCZYNSKI, J ;
KAPP, J ;
KORKIN, AA ;
SCHLEYER, PV .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1995, 117 (45) :11361-11362
[10]   CHEMISTRY OF ORGANOSILICON COMPOUNDS .292. AN NMR-STUDY OF THE FORMATION OF SILYLOXONIUM IONS BY USING TETRAKIS[3,5-BIS(TRIFLUOROMETHYL)PHENYL]BORATE AS COUNTERANION [J].
KIRA, M ;
HINO, T ;
SAKURAI, H .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (17) :6697-6700