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Competition in coordination assemblies: 1D-coordination polymer or 2D-nets based on Co(NCS)2 and 4'-(4-methoxyphenyl)-3,2':6',3"-terpyridine

Rocco, Dalila and Prescimone, Alessandro and Klein, Y. Maximilian and Gawryluk, Dariusz J. and Constable, Edwin C. and Housecroft, Catherine E.. (2019) Competition in coordination assemblies: 1D-coordination polymer or 2D-nets based on Co(NCS)2 and 4'-(4-methoxyphenyl)-3,2':6',3"-terpyridine. Polymers, 11 (7). p. 1224.

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Official URL: https://edoc.unibas.ch/71485/

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Abstract

The synthesis and characterization of 4′-(4-methoxyphenyl)-3,2′:6′,3″-terpyridine (2) (IUPAC PIN 24-(4-methoxyphenyl)-12,22:26,32-terpyridine) are described, and its coordination behaviour with cobalt(II) thiocyanate has been investigated. In a series of experiments, crystals were grown at room temperature by layering a MeOH solution of Co(NCS)2 over a CHCl3 solution of 2 using 1:1, 1:2 or 2:1 molar ratios of metal salt-to-ligand. Crystals harvested within 2–3 weeks proved to be the 1D-coordination polymer [Co(2)(NCS)2(MeOH)2]n and powder X-ray diffraction (PXRD) confirmed that the crystals selected for single-crystal X-ray diffraction were representative of the bulk samples. Longer crystallization times with a Co(NCS)2 to 2 molar ratio of 1:1 yielded crystals of [Co(2)(NCS)2(MeOH)2]n (1D-chain) and the pseudopolymorphs [{Co(2)2(NCS)2}·3MeOH]n and [{Co(2)2(NCS)2}·2.2CHCl3]n ((4,4)-nets), each type of crystal originating from a different zone in the crystallization tube. PXRD for this last experiment confirmed that the dominant product in the bulk sample was the 1D-coordination polymer.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Anorganische Chemie (Constable)
05 Faculty of Science > Departement Chemie > Chemie > Anorganische Chemie (Housecroft)
UniBasel Contributors:Housecroft, Catherine Elizabeth and Constable, Edwin Charles and Rocco, Dalila and Prescimone, Alessandro
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:MDPI
e-ISSN:2073-4360
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:16 Oct 2019 13:47
Deposited On:09 Oct 2019 13:37

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