Chatani, Shunsuke; Nakamura, Motoyoshi; Akahane, Hidenobu; Kohyama, Naoki; Taki, Masayasu; Arata, Toshiaki; Yamamoto, Yukio Chemical Communications, 2005, # 14 p. 1880 - 1882 doi: 10.1039/b418016j