Thiemann, Thies; Umeno, Kuniharu; Wang, Jian; Tabuchi, Yumiko; Arima, Kazuya; Watanabe, Masataka; Tanaka, Yasuko; Gorohmaru, Hideki; Mataka, Shuntaro Journal of the Chemical Society. Perkin Transactions 1, 2002 , # 18 p. 2090 - 2110