Triphenylmethanol-triphenylphosphine oxide (1/1)
In the crystalline 1:1 molecular complex of triphenylmethanol (TPMeOH) and triphenylphosphine oxide (TPPO), C(19)H(16)O. C(18)H(15)OP, molecular dimers are formed which are linked by O-H. O=P hydrogen bonds. The dimers are aligned by sixfold phenyl embraces to form columns. The structure is disordered with half a dimer per asymmetric crystal unit, i.e. with only one molecular site which is half-occupied by both TPMeOH and TPPO.
Steiner
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Institut fur Chemie - Kristallographie, Freie Universitat Berlin, Takustrasse 6, D-14195 Berlin, Germany. steiner@chemie.fu-berlin.de.