4,4′-(Pyridine-2,5-diyl)dibenzoic acid as a building block for Cd(II) and Mn(II) coordination compounds: Synthesis, structural features and properties
摘要:
Two new coordination compounds, namely a 3D metal-organic framework (MOF) {[Cd-2(L)(2)(phen)(2)]center dot H2O}(n) (1) and a discrete 0D dimer [Mn(L)(0.5)(HL)(phen)(2)](2)center dot 2H(2)O (2), were generated by a hydrothermal method from the metal(II) chlorides, 4,4'-(pyridine-2,5-diyl)dibenzoic acid (H2L) as a main building block, and an ancillary 1,10-phenanthroline (phen) ligand. The products 1 and 2 were characterized by IR spectroscopy, elemental, thermogravimetric, and single-crystal X-ray diffraction analyses. Compound 1 possesses an intricate 3D metal-organic framework based on tetracadmium(II) double-helicate units which, after simplification, resulted in a 4-fold interpenetrated underlying net with the dia topology. Compound 2 features a dimeric molecular structure, which is extended (0D -> 1D) by hydrogen bonds into a 1D double chain network. It was topologically classified as a simple 3-connected ladder with the SP 1-periodic net (4,4)(0,2) topology. The luminescent (for 1) and magnetic (for 2) properties were also investigated and discussed. (C) 2015 Elsevier B.V. All rights reserved.
4,4′-(Pyridine-2,5-diyl)dibenzoic acid as a building block for Cd(II) and Mn(II) coordination compounds: Synthesis, structural features and properties
作者:Yu Li、Qiang Zhou、Xun-Zhong Zou、Jin-Zhong Gu、Bo Chen、Alexander M. Kirillov
DOI:10.1016/j.ica.2015.06.010
日期:2015.8
Two new coordination compounds, namely a 3D metal-organic framework (MOF) [Cd-2(L)(2)(phen)(2)]center dot H2O}(n) (1) and a discrete 0D dimer [Mn(L)(0.5)(HL)(phen)(2)](2)center dot 2H(2)O (2), were generated by a hydrothermal method from the metal(II) chlorides, 4,4'-(pyridine-2,5-diyl)dibenzoic acid (H2L) as a main building block, and an ancillary 1,10-phenanthroline (phen) ligand. The products 1 and 2 were characterized by IR spectroscopy, elemental, thermogravimetric, and single-crystal X-ray diffraction analyses. Compound 1 possesses an intricate 3D metal-organic framework based on tetracadmium(II) double-helicate units which, after simplification, resulted in a 4-fold interpenetrated underlying net with the dia topology. Compound 2 features a dimeric molecular structure, which is extended (0D -> 1D) by hydrogen bonds into a 1D double chain network. It was topologically classified as a simple 3-connected ladder with the SP 1-periodic net (4,4)(0,2) topology. The luminescent (for 1) and magnetic (for 2) properties were also investigated and discussed. (C) 2015 Elsevier B.V. All rights reserved.