Showing papers by "George M. Sheldrick published in 1970"

Molecular structures of digermyl ether and digermyl sulphide in the gas phase, studied by electron diffraction

Abstract: The structures of digermyl ether and digermyl sulphide have been determined in the gas phase by the sector microphotometer method of electron diffraction. The principal parameters for digermyl ether are: r(Ge–O)= 1·766 ± 0·004 A, r(Ge–H)= 1·531 ± 0·011 A, ∠(Ge–O–Ge)= 126·5 ± 0·4°: for digermyl sulphide, r(Ge–S)= 2·209 ± 0·004 A, r(Ge–H)= 1·512 ± 0·016 A, ∠(Ge–S–Ge)= 98·9 ± 0·3°.

Electron diffraction determination of the molecular structure of tetrasilylhydrazine

Abstract: The structure of tetrasilylhydrazine, (SiH3)4N2, has been determined by the sector microphotometer method of electron diffraction. The data are consistent with planar Si2NN groups, and a dihedral angle of 82·5 ± 0·8°; the deviation of this angle from 90° may possibly be explained by torsional effects. The Si–H, N–Si, and N–N bond lengths are 1·487 ± 0·014, 1·731 ± 0·004, and 1·457 ± 0·016 A respectively; the Si–N–Si angle is 129·5 ± 0·7° and the N–Si–H angle is 109·0 ± 1·4°.

Elektronenbeugung an phenylsilylaether(i)

Abstract: Die Molekularstruktur des Athers (I), der aus Phenol und Disilylsulfid nach bekannten Methoden erhalten wird, wird durch Elektronenbeugung bestimmt.