title: An unusual mixed-valence Cu(I)-Cu(II) 3-D framework.
abstract: The reaction of Cu(CH(3)CN)(4)ClO(4) with 2-pyridylacrylic acid (2-HPYA) affords an unusual mixed-valence Cu(I)-Cu(II) 3-D framework ([Cu(II)(2-PYA)(2)](3).[Cu(I)(2-PYA)](2).(H2O)(2))n (1) with a novel topology which features Cu(II) dimeric units (or paddle-wheel unit). The almost perpendicular coordinating direction between the N atom of pyridyl and the O atom of carboxylate groups may be responsible for the formation of such a novel network.
authors.affiliation: Coordination Chemistry Institute, The State Key Laboratory of Coordination Chemistry, Nanjing University, 210093 Nanjing, P.R. China.
authors.forename: Hong
authors.initials: H
authors.lastname: Zhao
authors.forename: Zhi-Rong
authors.initials: ZR
authors.lastname: Qu
authors.forename: Qiong
authors.initials: Q
authors.lastname: Ye
authors.forename: Xi-Sen
authors.initials: XS
authors.lastname: Wang
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.forename: Ren-Gen
authors.initials: RG
authors.lastname: Xiong
authors.forename: Xiao-Zeng
authors.initials: XZ
authors.lastname: You