title: Novel Disulfido- and Diselenido-Bridged Zirconium and Hafnium Porphyrin Dimers with Unusual Coordination Geometries: [M(TPP)](2)(&mgr;-eta(2)-Q(2))(2) (M = Zr, Hf; Q = S, Se).
authors.affiliation: Department of Chemistry and Center for Biofunctional Molecules, Pohang University of Science and Technology, San 31 Hyojadong, Pohang 790-784, South Korea, and Department of Chemistry, University of Nagoya, Furo-cho, Chikusa-ku, Nagoya 464-01, Japan.
authors.forename: Sanghoon
authors.initials: S
authors.lastname: Ryu
authors.forename: Dongmok
authors.initials: D
authors.lastname: Whang
authors.forename: Hee-Joon
authors.initials: HJ
authors.lastname: Kim
authors.forename: Kimoon
authors.initials: K
authors.lastname: Kim
authors.forename: Maki
authors.initials: M
authors.lastname: Yoshida
authors.forename: Keisuke
authors.initials: K
authors.lastname: Hashimoto
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Tatsumi