Die Molekül- und Kristallstruktur des triphenylsilanols

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.…”

2,5-Bis(di-tert-butylhydroxysilyl)furan as a Host Molecule for Potassium Fluoride, H2O, NH3 and MeNH2

“…[2Ϫ5] The crystal structure of triphenylsilanol, for example, has 16 molecules in the unit cell, arranged as two sets of two independent tetrameric hydrogen-bonded units. [2,6] This tetrameric structure is retained in the adduct with ethanol, (Ph 3 SiOH) 4 ·EtOH, which has a cyclic network of hydrogen bonds. Silanol is very selective in its adduct formation and also forms adducts with MeOH, DMSO and ethers.…”

Si−H-Functionalized Ferriodisiloxanes: Synthesis from the Ferriodimethylsilanols C5R5(OC)2Fe−SiMe2OH (R = H, Me) and Photoinduced Transformation into µ2-Disiloxanediyl-Bridged Dinuclear Iron Complexes

“…[32,33] The SiϪO bond lengths [1.676(9) Å and 1.653(6) Å ] are slightly greater than those in organosilanols, [34] indicating some electronic saturation of the silicon atom by the transition metal component. The silicon atoms show a distorted tetrahedral coordination with reduced angles between the methyl and hydroxy substituents forming chains, [35,36] tetramers [37] or dimers, [38Ϫ40] depending on the steric demand of the organic substituents. A few examples show that, as far as the formation of hydrogen bonds is concerned, the transition metal components show an effect analogous to that of organic substituents, the difference being that the acidity of the OH hydrogen atom is reduced and the basicity of the oxygen atom is increased.…”