Discrete and polymeric complexes formed from cobalt(II), 4,4'-bipyridine and 2-sulfoterephthalate: synthetic, crystallographic and magnetic studies

Datta, Amitabha, Massera, Chiara, Clegg, Jack K., Aromi, Guillem, Aguila, David, Huang, Jui-Hsien and Chuang, Sheng-Jie (2015) Discrete and polymeric complexes formed from cobalt(II), 4,4'-bipyridine and 2-sulfoterephthalate: synthetic, crystallographic and magnetic studies. CrystEngComm, 17 24: 4502-4511. doi:10.1039/c5ce00713e


Author Datta, Amitabha
Massera, Chiara
Clegg, Jack K.
Aromi, Guillem
Aguila, David
Huang, Jui-Hsien
Chuang, Sheng-Jie
Title Discrete and polymeric complexes formed from cobalt(II), 4,4'-bipyridine and 2-sulfoterephthalate: synthetic, crystallographic and magnetic studies
Journal name CrystEngComm   Check publisher's open access policy
ISSN 1466-8033
Publication date 2015-06-28
Year available 2015
Sub-type Article (original research)
DOI 10.1039/c5ce00713e
Open Access Status Not Open Access
Volume 17
Issue 24
Start page 4502
End page 4511
Total pages 10
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Collection year 2016
Language eng
Formatted abstract
A series of five coordination compounds, namely, {[Co3(stp)2(bipy)(H2O)4]·2H2O}n, (1), {[Co3(stp)2(bipy)5(H2O)6]·4H2O}n, (2), [Co3(stp)2(bipy)4(H2O)10]·8H2O, (3), [Co(Hstp)2(Hbipy)2], (4) and {[Co(stp)2(H2O)2][Co(bipy)2(H2O)4]}·2Hbipy·2H2O, (5) have been synthesised hydrothermally, through the reaction of different molar ratios of 2-sulfoterephthalic acid monosodium salt, Na(H2stp), cobalt(II) nitrate hexahydrate and the N-donor ancillary co-ligand 4,4′-bipyridine (bipy). Due to the combination of the multiple potential coordination modes of the stp ligand and the bipy co-ligand, the products are structurally and topologically diverse with the connectivities of the materials dependent on the ratios of starting materials employed. Single-crystal X-ray diffraction studies show that compound 1 is a three-dimensional coordination polymer, compound 2 consists of infinite one-dimensional zig-zag chains, compound 3 is a discrete trinuclear complex, compound 4 is a discrete mononuclear complex and compound 5 is an ionic solid consisting of both cobalt containing cations and anions. Magnetic studies show that the Co(II) ions in 1 are strongly coupled, while 2, 3 and 5 show insignificant coupling due to larger metal–metal separations. Modelling required the introduction of zero field splitting parameters due to orbital angular momentum contributions in these cases.
Keyword Metal organic frameworks
Porous coordination polymers
Inorganic 3D networks
Crystal structures
Luminescent properties
Molecular knots
Spin transition
Pore surface
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Chemistry and Molecular Biosciences
 
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Created: Fri, 03 Jul 2015, 20:06:15 EST by Mrs Louise Nimwegen on behalf of School of Chemistry & Molecular Biosciences