title: Extended calix[4]arene analogues by two P-CuI-P bridges and anion encapsulation.
abstract: Two novel extended calix[4]arene analogues by two P-Cu(I)-P bridges have been synthesized. The molecular structures and anion encapsulation ability for ClO4- and BF4- have been studied by X-ray analysis.
authors.affiliation: State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China.
authors.forename: Xiang-Tai
authors.initials: XT
authors.lastname: Meng
authors.forename: Qing-Shan
authors.initials: QS
authors.lastname: Li
authors.forename: Feng-Bo
authors.initials: FB
authors.lastname: Xu
authors.forename: Hai-Bin
authors.initials: HB
authors.lastname: Song
authors.forename: Christopher E
authors.initials: CE
authors.lastname: Anson
authors.forename: Zheng-Zhi
authors.initials: ZZ
authors.lastname: Zhang