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Two Cd-II/Co-II-Imidazolate Coordination Polymers: Syntheses, Crystal Structures, Stabilities, and Luminescent/Magnetic Properties

  • Cadmium(II) based 2D coordination polymer [Cd(L1)(2)(DMF)(2)] (1) (L1 = 4,5-dicyano-2-methylimidazolate, DMF = N,N'-dimethylformamide) and 2D cobalt(II)-imidazolate framework [Co(L3)(4)] (2) (L3 = 4,5-diamide-2-ethoxyimidazolate) were synthesized under solvothermal reaction conditions. The materials were characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis, powder X-ray diffraction measurement (PXRD) and single-crystal X-ray diffraction. Compound 1 has hexacoordinate Cd-II ions and forms a zigzag chain-like coordination polymer structure, whereas compound 2 exhibits a 2D square grid type structure. The thermal stability analysis reveals that 2 showed an exceptional thermal stability up to 360 degrees C. Also, 2 maintained its fully crystalline integrity in boiling water as confirmed by PXRD. The solid state luminescent property of 1 was not observed at room temperature. Compound 2 showed an independent high spin central Co-II atom.

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Metadaten
Author:Suvendu Sekhar Mondal, Karsten BehrensGND, Alexandra Kelling, Hans-Peter Nabein, Uwe SchildeORCiDGND, Hans-Jürgen Holdt
DOI:https://doi.org/10.1002/zaac.201500526
ISSN:0044-2313
ISSN:1521-3749
Parent Title (English):Zeitschrift für anorganische und allgemeine Chemie
Publisher:Wiley-VCH
Place of publication:Weinheim
Document Type:Article
Language:English
Year of first Publication:2015
Year of Completion:2015
Release Date:2017/03/27
Tag:Cadmium; Cobalt; Coordination polymers; Crystal structures; Imidazole
Volume:641
Issue:11
Pagenumber:7
First Page:1991
Last Page:1997
Funder:Deutsche Forschungsgemeinschaft [SPP 1362, HO 1706/7-1, HO 1706/7-2]
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie
Peer Review:Referiert