A new polymorph of tetraphenyldiboroxane.
A new polymorph of tetraphenyldiboroxane [or oxybis(diphenylborane)], C(24)H(20)B(2)O, (Ia), has been found. It is monoclinic, like the already known form, (Ib), and can be refined in the same space group, namely P2(1)/c, or in the equivalent setting P2(1)/n. The molecular conformations of the two polymorphs differ in the rotations of two of the phenyl rings about the B-C bonds, leading to markedly different packing patterns and cell dimensions.
Kaufmann
Linda
L
Institut für Anorganische Chemie, J. W. Goethe-Universität Frankfurt, Max-von-Laue-Strasse 7, 60438 Frankfurt/Main, Germany.
Lerner
Hans Wolfram
HW
Bolte
Michael
M