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Title: Anion-controlled assembly of metal 3,5-bis(benzimidazol-1-ylmethyl) benzoate complexes: Synthesis, characterization and property

Hydrothermal reactions of 3,5-bis(benzimidazol-1-ylmethyl)benzoic acid (HL) with Cd(II), Cu(II) and Zn(II) salts provide eight new metal complexes which were characterized by single crystal and powder X-ray diffraction, IR, elemental and thermogravimetric analyses. Two cadmium frameworks [Cd(L){sub 2}]·2H{sub 2}O (1) and [Cd(L)Cl] (2) have 3D structures with (4{sup 2}.6{sup 5}.8{sup 3})(4{sup 2}.6) and rtl (4.6{sup 2}){sub 2}(4{sup 2}.6{sup 10}.8{sup 3}) topologies, respectively. Structural diversity of four copper complexes [Cu{sub 3}(L){sub 2}]·NO{sub 3}·0.5H{sub 2}O (3), [Cu{sub 2}(HL){sub 2}(SO{sub 4})]·3.5H{sub 2}O (4), [Cu(L)(bdc){sub 0.5}]·1.5H{sub 2}O (5) and [Cu{sub 2}(L)(HL)(Hbdc)] (6) (H{sub 2}bdc=1,4-benzenedicarboxylic acid) is achieved through the alteration of copper salts and addition of auxiliary ligand. As a result, 3 has a 1D ladder structure, 4 is a discrete dinuclear complex, 5 displays a (3,4)-connected 2-nodal 3-fold interpenetrating framework with (4{sup 2}.6.10{sup 2}.12)(4{sup 2}.6) topology, 6 exhibits a 4-connected uninodal 2D sql (4{sup 4}.6{sup 2}) network. Within the zinc series, ZnCl{sub 2} and ZnSO{sub 4} were used for the syntheses of [Zn(L)Cl] (7) and [Zn(L)(SO{sub 4}){sub 0.5}]·2H{sub 2}O (8), respectively. 7 shows a 3-connected uninodal 2D hcb network with (6{sup 3}) topology and 8 is a (3,6)-connected 2-nodal 3D framework with (4{sup 2}.6){sub 2}(4{sup 4}.6{sup 2}.8{sup 8}.10) topology. The luminescent properties of themore » Cd(II) and Zn(II) complexes were investigated. - Graphical abstract: Eight new complexes have been successfully synthesized from the hydrothermal reactions of Cd(II), Cu(II) and Zn(II) salts with 3,5-bis(benzimidazol-1-ylmethyl)benzoic acid. The complexes exhibited anion-controlled structural diversity. - Highlights: • Metal complexes have diverse structures of 1D chains, 2D networks and 3D frameworks. • Anion-controlled assembly of the complexes is reported. • The luminescent properties of the Cd(II) and Zn(II) complexes were investigated.« less
Authors:
 [1] ;  [2] ; ;  [1] ;  [1]
  1. Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093 (China)
  2. (China)
Publication Date:
OSTI Identifier:
22475531
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 223; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ANIONS; BENZOIC ACID; CADMIUM; COPPER; COPPER COMPLEXES; HYDROTHERMAL SYNTHESIS; IODINE COMPLEXES; LIGANDS; LUMINESCENCE; MONOCRYSTALS; NITRATES; NITROGEN OXIDES; POWDERS; SALTS; THERMAL GRAVIMETRIC ANALYSIS; X-RAY DIFFRACTION; ZINC; ZINC CHLORIDES; ZINC COMPLEXES; ZINC SULFATES