The title compd. is monoclinic, space group Cc, with a 24.28(4), b 8.76(6), c 14.03(2) Å, and β 108.00(9)°; d.(exptl.) = 1.18 and d.(calcd.) = 1.16 for Z = 4 (2 mols./Z). The structure was detd. to obtain accurate information about the geometry of the mol. as there was ambiguity in the chem. structure. The structure was refined to R = 6.3% for 1165 visually measured reflections. At parameters, bond angles and distances are given. The established structure proposed on the basis of chem. and phys. data. The new structure explains some reactions which could not be understood from the previously proposed structure
