ELECTRON-DIFFRACTION STUDY OF TETRAKIS(TRIFLUOROMETHYL)GERMANE, GE(CF3)4

被引：27

作者：

OBERHAMMER, H ^{[1
]}

EUJEN, R ^{[1
]}

机构：

[1] GESAMTH SCH WUPPERTAL,FACHBEREICH ANORGAN CHEM 9,WUPPERTAL,FED REP GER

来源：

JOURNAL OF MOLECULAR STRUCTURE | 1979年 / 51卷 / 02期

关键词：

D O I：

10.1016/0022-2860(79)80294-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The molecular structure of tetrakis(trifluoromethyl)germane was determined by electron diffraction of gases. The following geometric parameters (r0α values) were obtained: CF = 1.330 ± 0.002 Å, GeC = 1.989 ± 0.005 Å and ∠FCF = 108.0 ± 0.3°. Two very crude models were used to allow for the large amplitude vibrations of the CF3 groups. Both models led essentially to the same result: Td symmetry for the equilibrium configuration of the molecule, i.e. the CF3 groups stagger exactly the GeC bonds, and a torsional force constant for the CF3 groups of approximately 0.04 mdyn Å. CNDO/2 calculations agree surprisingly well with this experimental result. © 1979.

引用

页码：211 / 215

页数：5