Endohedral clusterization of ten water molecules into a "molecular ice"within the hydrophobic pocket of a self-assembled cage.

作者信息

Yoshizawa Michito, Kusukawa Takahiro, Kawano Masaki, Ohhara Takashi, Tanaka Ichiro, Kurihara Kazuo, Niimura Nobuo, Fujita Makoto

机构信息

Department of Applied Chemistry, School of Engineering, The University of Tokyo and CREST, Japan Science and Technology Agency, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.

出版信息

J Am Chem Soc. 2005 Mar 9;127(9):2798-9. doi: 10.1021/ja043953w.

An adamantanoid (H2O)10 cluster is formed within the hydrophobic cavity of a self-assembled coordination cage. This cluster is termed "molecular ice" because it is the smallest unit of naturally occurring Ic-type ice. X-ray structural analysis, coupled with neutron diffraction study, reveals that the molecular ice is formed not by a simple space-filling effect but by efficient molecular recognition within the cage via H2O:...pi interaction.