The structure of triphenylgermanium hydroxide

Abstract

Abstract. C18H~6GeO, Mr = 320.9, triclinic, Pi, a = 15.408 (6)

Syntheses and structural analysis of the sterically encumbered germanes (o-ButC6H4)3GeX (X=Br, H, Cl, OH), (o-ButC6H4)2GeBr2, and Mes2GeH2: distortions arising from the presence of an ortho-tert-butyl substituent

“…The GeeO bond distance is 1.885(3) A, which is elongated relative to typical germaniumeoxygen bonds that range from 1.76 to 1.84 A in linear compopunds [21]. The structure of 4 can be compared to the unsubstituted derivative Ph 3 GeOH [22] (16) as well as the sterically congested species Mes 3 GeOH [23] (17) ( Table 2). Compound 16 contains eight independent molecules in the unit cell [22], while 17 was obtained as a hydrogen bonded pair with Mes 3 GeNCO.…”

Synthesis, structures and reactions of some metallocene alcohols

“…The two inequivalent molecules of the asymmetric unit, together with two additional molecules related by the crystallographic inversion centre, form a tetramer composed of enantio- (8). We are not aware of a previous example of a metallocene mono-alcohol adopting this particular hydrogen bonding motif, although it it is quite frequent in organic alcohols [80], as well as being found in bulky hetero-alcohols such as Ph 3 SiOH [81], Ph 3 GeOH [82].…”

Structures of 1-ferrocenyl-1-phenylethanol, ferrocenyl(diphenyl)methanol and ferrocene-1,1'-diylbis(diphenylmethanol)

“…These aggregates are significantly different from the cyclic tetrameric aggregates found in triphenylsilanol, Ph3 SiOH (Puff, Braun & Reuter, 1991), and in triphenylgermanol, Ph3GeOH (Ferguson, Gallagher, Murphy, Spalding, Glidewell & Holden, 1992), whose graph set (Etter, MacDonald & Bemstein, 1990) is R~4(8). Triphenylmethanol can act as a host towards guest molecules such as methanol and dimethyl sulfoxide (Weber, Skobridis & Goldberg, 1989) albeit with hydrogen-bonding arrangements wholly different from that in unsolvated Ph3COH.…”