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A novel [Dy 4 (OH) 4 ]-based porous coordination polymer with double-wall structure: Topology structure, fluorescence and magnetic properties

Inorganic Chemistry Communications, ISSN: 1387-7003, Vol: 127, Page: 108531
2021
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  • Citations
    3
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      3

Article Description

A novel [Dy 4 (OH) 4 ]-based porous coordination polymer with double-wall structure, [Dy(OH)(cppc)] n ( 1 ) (H 2 cppc = 5-(4-carboxyphenyl)pyridine-2-carboxylic acid), has been successfully obtained through solvo-thermal method and characterized by elemental analysis, IR spectrum, powder X-ray diffraction, single-crystal X-ray diffraction and thermal analysis. Structure analysis shows compound 1 is a three-dimensional porous coordination polymer with double-wall structure constructed by [Dy 4 (OH) 4 ] 8+ cubane-like units and (cppc) 2− anions, in which one-dimensional square channels with the dimensions 11.78 × 11.78 Å 2 are observed. Topology analysis reveals compound 1 has an unprecedented (3, 12)-connected topology net with Schlafli symbol {4 20.6 28.8 18 }{4 3 } 4. Thermal analysis indicates the framework of compound 1 kept thermally stable until 370 °C. Fluorescent experiment indicates that compound 1 show apparently blue light emission in the solid state. Variable-temperature magnetic susceptibility measurement indicates strong antiferromagnetic interactions in [Dy 4 (OH) 4 ] 8+ SBU for compound 1.

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