Spin canting in the [Co2(NCO)4(DPDS)4]·3H2O [DPDS=di(4-pyridyl)disulfide] coordination polymer

A new coordination polymer: [Co2(NCO)4(DPDS)4]·3H2O (1) (DPDS=di(4-pyridyl)disulfide) has been synthesized. Single-crystal structure analysis reveals two crystallographically independent units, forming linear chains that are assembled into a pseudo 3D global network through hydrogen bonds. A canting...

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Bibliographic Details
Published in:	Polyhedron Vol. 52; pp. 1256 - 1261
Main Authors:	de la Pinta, Noelia, Madariaga, Gotzon, Ezpeleta, Txema, Luz Fidalgo, M., Lezama, Luis, Cortés, Roberto
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 22-03-2013
Subjects:	Cobalt complex Coordination polymer Cyanate ligand Hydrogen bonding Spin canting Cyanate ligand Cobalt complex Coordination polymer Hydrogen bonding Spin canting
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Summary:	A new coordination polymer: [Co2(NCO)4(DPDS)4]·3H2O (1) (DPDS=di(4-pyridyl)disulfide) has been synthesized. Single-crystal structure analysis reveals two crystallographically independent units, forming linear chains that are assembled into a pseudo 3D global network through hydrogen bonds. A canting phenomenon is observed associated to the magnetically nonequivalent antiferromagnetic chains. [Display omitted] ► A cobalt(II)-cyanate-DPDS (di(4-pyridyl)disulfide) coordination polymer is shown. ► Two crystallographically independent Co(II) chains are observed. ► H-bonding promotes generation of pseudo 3D global structure. ► Canting phenomenon appears, associated to the magnetically nonequivalent chains. Here we report the synthesis and its characterization by X-ray diffraction, FTIR, UV–Vis and ESR spectroscopies, and magnetic measurements of a new compound: [Co2(NCO)4(DPDS)4]·3H2O (1) [DPDS=di(4-pyridyl)disulfide]. Single-crystal structure analysis reveals association of infinite linear cobalt(II) chains that are assembled in a pseudo 3D network through O–H(w)…O(NCO) and C–H(Py)…O(NCO) hydrogen bonds. The intermetallic M…M intrachain distances are 10.5Å and 10.3Å for Co(1) and Co(2), respectively. A canting phenomenon is observed for the compound associated to the non equivalence of the cobalt chains.
ISSN:	0277-5387
DOI:	10.1016/j.poly.2012.06.023