Polycyclic bis-epoxides 5, 6, and 7 have been synthesized, and their s
tructures established unequivocally via application of single crystal
X-lay crystallographic methods. The crystal densities of 2-7 (calculat
ed from X-ray crystallographic data) are compared with the results of
theoretical density predictions. Copyright (C) 1996 Elsevier Science L
td.