title: A new linear bismuth coordination polymer based on 1,10-phenanthroline-2,9-dicarboxylic acid: ionothermal synthesis, crystal structure and fluorescence properties.
abstract: A new linear bismuth(III) coordination polymer, catena-poly[[chloridobismuth(III)]-μ3-1,10-phenanthroline-2,9-dicarboxylato-κ(6)O(2):O(2),N(1),N(10),O(9):O(9)], [Bi(C14H6N2O4)Cl]n, has been obtained by an ionothermal method and characterized by elemental analysis, energy-dispersive X-ray spectroscopy, IR spectroscopy, thermal stability studies and single-crystal X-ray diffraction. The structure is constructed by Bi(C14H6N2O4)Cl fragments in which each Bi(III) centre is seven-coordinated by one Cl atom, four O atoms and two N atoms. The coordination geometry of the Bi(III) cation is distorted pentagonal-bipyramidal (BiO4N2Cl), with one bridging carboxylate O atom and one Cl atom located in the axial positions. The Bi(C14H6N2O4)Cl fragments are further extended into a one-dimensional linear polymeric structure via subsequent but different centres of symmetry (bridging carboxylate O atoms). Neighbouring linear chains are assembled via weak C-H···O and C-H···Cl hydrogen bonds, forming a three-dimensional supramolecular architecture. Intermolecular π-π stacking interactions are observed, with centroid-to-centroid distances of 3.678 (4) Å, which further stabilize the structure. In addition, the solid-state fluorescence properties of the title coordination polymer were investigated.
authors.affiliation: College of Chemistry and Pharmacy Engineering, Nanyang Normal University, Nanyang 473061, People's Republic of China.
authors.forename: Yu-Quan
authors.initials: YQ
authors.lastname: Feng
authors.affiliation: College of Chemistry and Pharmacy Engineering, Nanyang Normal University, Nanyang 473061, People's Republic of China.
authors.forename: Yu-Long
authors.initials: YL
authors.lastname: Hu
authors.affiliation: College of Chemistry and Pharmacy Engineering, Nanyang Normal University, Nanyang 473061, People's Republic of China.
authors.forename: Hong-Wei
authors.initials: HW
authors.lastname: Wang
authors.affiliation: College of Chemistry and Pharmacy Engineering, Nanyang Normal University, Nanyang 473061, People's Republic of China.
authors.forename: Feng-Pu
authors.initials: FP
authors.lastname: Cao
mesh_terms: D001729:Bismuth / Q000737:chemistry*; D056831:Coordination Complexes / Q000138:chemical synthesis* / Q000737:chemistry; D018360:Crystallography, X-Ray; D005453:Fluorescence; D006860:Hydrogen Bonding; D015394:Molecular Structure; D010618:Phenanthrolines / Q000138:chemical synthesis*; D011108:Polymers / Q000737:chemistry*
chemical_list: C519844:1,10-phenanthroline-2,9-dicarboxylic acid; D056831:Coordination Complexes; D010618:Phenanthrolines; D011108:Polymers; D001729:Bismuth
keywords: 1,10-phenanthroline-2,9-dicarboxylate; IR spectroscopy; bismuth(III) complex; crystal structure; energy-dispersive X-ray spectroscopy; ionothermal synthesis; one-dimensional coordination polymer; solid-state fluorescence properties; thermal stability