1. Boundjouk, P., Kapfer, C. A., and Cunico, R. F. (1983)Organometallics 2, 336?343.
2. Chan, T.-L., Cui, Y.-X., Mak, T. C. W., Wang, R.-J., and Wong, H. N. C. (1990)Acta Crystallogr. A 46, Supplement, C191.
3. Diamond, R. (1969)Acta Crystallogr. A 25, 43?55.
4. International Tables for X-ray Crystallography (1974) Vol. IV (Kynoch Press, Birmingham, England), pp. 55, 99, 149. (Now distributed by Kluwer Academic Publisher, Dordrecht.)
5. Kemp, D. S., and Petrakis, K. S. (1981)J. Org. Chem. 46, 5140?5143.