Acknowledgment. We thank the National Science Foundation (CHE-8510067) for support of this work and Donna Van Engen for a helpful discussion.Registry No. 1, 2, hexamethylbenzene, Supplementary Material Available: Bond lengths and bond angles, with standard deviations, for 2 (Tables IV and V), final anisotropic thermal parameters for chlorine (Table VI), and atomic parameters for hydrogen (Table VII) (3 pages). [The structure factor table is available from the author.] Ordering information is given on any current masthead page.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.