Crystal studies of some organic natural products and inorganic compounds of structural interest

by Brown, Kevin L.

The crystal structure of the bromo derivative of a cyclic diterpene has been determined. The crystals are of orthorhombic symmetry with a = 9.00Å, b = 31.46Å, c = 7.31Å. The structure was solved by the normal heavy atom procedure, and refined by least-squares to a residual of R = 0.064. The molecule is shown to be phyllocladan-15-yl bromoacetate, rather than to be a neo-atisirane derivative, as had been expected.