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. ... ...
