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Straight versus branched chain substituents in 4'-(butoxyphenyl)-3,2':6',3"-terpyridines: Effects on (4,4) coordination network assemblies

Rocco, Dalila. and Prescimone, Alessandro and Constable, Edwin C. and Housecroft, Catherine E.. (2020) Straight versus branched chain substituents in 4'-(butoxyphenyl)-3,2':6',3"-terpyridines: Effects on (4,4) coordination network assemblies. Polymers, 12 (8). p. 1823.

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Abstract

The preparation and characterization of the isomers rac-4'-(4-butan-2-yloxyphenyl)-3,2':6',3"-terpyridine (rac-2), 4'-(2-methylpropoxyphenyl)-3,2':6',3"-terpyridine (3) and 4'-( tert- butoxyphenyl) -3,2':6',3"-terpyridine (4) are reported. The compounds react with Co(NCS)2 under conditions of crystal growth at room temperature to give single crystals of [{Co(rac-2)2(NCS)2} . CHCl3] n , [Co(3)2(NCS)2] n and [{Co(4)2(NCS)2} . CHCl3] n which possess (4,4) networks with the Co centers acting as 4-connecting nodes. Powder X-ray diffraction (PXRD) was used to confirm that the crystals chosen for single crystal X-ray diffraction were representative of the bulk samples. The detailed structures of the three networks have been compared with that of the previously reported [{Co(1)2(NCS)2} . 4CHCl3]n in which 1 is 4'-(butoxyphenyl)-3,2':6',3"-terpyridine. Whereas the switch from 1 with the straight-chain butoxy substituent to rac-2, 3and 4 with branched chains causes significant structural perturbation, changes in the spatial properties of the branched substituents are accommodated with subtle conformational changes in the 3,2':6',3"-tpy domain
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
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Last Modified:26 Aug 2020 09:10
Deposited On:26 Aug 2020 09:10

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