STRUCTURE OF DIETHYLGERMANIUM DIPHENYLSILICON OXIDE AND CONFORMATION OF 8-MEMBERED RINGS WITH SILICON AND GERMANIUM


AKKURT M. , KOK T., FALESCHINI P., RANDACCIO L., PUFF H., SCHUH W.

JOURNAL OF ORGANOMETALLIC CHEMISTRY, cilt.470, ss.59-66, 1994 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 470
  • Basım Tarihi: 1994
  • Doi Numarası: 10.1016/0022-328x(94)80148-7
  • Dergi Adı: JOURNAL OF ORGANOMETALLIC CHEMISTRY
  • Sayfa Sayıları: ss.59-66

Özet

Diethylgermanium-diphenylsilicon oxide [(Et2Ge)O(Ph2Si)O]2 has been prepared by reaction of diethylgermanium dichloride and diphenyldihydroxysilane. Spectra and X-ray analysis showed the presence of a puckered eight-membered silicon-germanium-oxygen ring. The ethyl groups of the germanium atoms are disordered. A procedure is proposed for eight-membered rings with low symmetry to obtain a classification into clearly explaining ring forms based on exact or approximated planes put through as many ring atoms as possible. All of the 42 published eight-membered rings with silicon or germanium and oxygen, nitrogen or carbon could be classified by this method.