4,4'-Isopropylidenediphenyl Bis(chloroformate)

Article abstract of DOI:10.1107/S0108270193011084

In the structure of C17H14Cl2O4, (1), each Cl-CO-O moiety is perfectly planar.The C=O carbonyl bonds appear normal with lengths of 1.177 (5) and 1.162 (7) Angstroem , as do the carbonyl-chlorine bonds at 1.762 (5) and 1.742 (5) Angstroem .The planes defined by the Cl-CO-O groups are rotated through dihedral angles of 178.9 (3) and 177.4 (3) degree relative to the adjacent phenyl rings.The two phenyl rings are canted relative to each other with a dihedral angle of 104.2 (10) degree.