title: (μ-2',6'-Dicarboxy-biphenyl-2,6-dicar-boxylato)bis[(1,10-phenanthroline)silver(I)].
abstract: In the dimeric title complex, [Ag(2)(C(16)H(8)O(8))(C(12)H(8)N(2))(2)] or [Ag(2)(H(2)bta)(phen)(2)] (H(4)bta = biphenyl-2,2',6,6'-tetra-carb-ox-y-lic acid, phen = 1,10-phenanthroline), each Ag(I) ion displays an approximatively planar-trigonal geometry, being surrounded by one chelating phen ligand and one carboxyl-ate O atom from an H(2)bta ligand. Owing to the the presence of crystallographic twofold rotation axes, the four C atoms bisecting the H~2~bta ligand are located on a special position. Each H(2)bta ligand acts as a bis-monodentate ligand, ligating two Ag(I) ions into a dimeric compound. Inter-molecular O-H⋯O inter-actions are observed in the crystal structure.
authors.affiliation: Department of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, People's Republic of China.
authors.forename: Lin
authors.initials: L
authors.lastname: Cheng
authors.forename: Jian-Quan
authors.initials: JQ
authors.lastname: Wang
authors.forename: Li-Min
authors.initials: LM
authors.lastname: Zhang