2018
DOI: 10.1039/c7dt04256f
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Effect of linear and non-linear pseudohalides on the structural and magnetic properties of Co(ii) hexacoordinate single-molecule magnets

Abstract: A series of mononuclear hexacoordinate Co(ii) complexes with the 4-amino-3,5-bis(2-pyridyl)-1,2,4-triazole (abpt) ligand and various linear and non-linear pseudohalides, such as NCSe (selenocyanate), N{C(CN)} (1,1,3,3-tetracyano-2-azapropenide, tcap), NOC(CN) (nitrodicyanomethanide, nodcm), C(CN){C(CN)} (1,1,2,3,3-pentacyanopropenide, pcp), NONCN (nitrocyanamide, nca), and ONC(CN) (nitrosodicyanomethanide, ndcm), was prepared. X-ray analyses revealed the formation of the complexes with the general compositions… Show more

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Cited by 29 publications
(28 citation statements)
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“…The axial positions are occupied by two terminal trans ‐coordinated nitrogen atoms from azido ligands with the Co–N7 coordination distance of 2.121(2) Å. The Co–N bond lengths involving the pyridyl groups [Co1–N6 = 2.157(2) Å] are longer than those corresponding to the triazole rings [Co1–N2 = 2.092(2) Å], which is in good agreement with other isostructural Co II compounds containing abpt ligand , , . The angular distortions of coordination octahedron are determined by the chelate binding of abpt ligands and result in the expected substantial deviations of the chelate bite angle N2–Co1–N6 [76.75(7)°] from 90°; all cis N–Co1–N angles range from 76.75(7)° to 103.25(7)° (Table ).…”
Section: Resultssupporting
confidence: 81%
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“…The axial positions are occupied by two terminal trans ‐coordinated nitrogen atoms from azido ligands with the Co–N7 coordination distance of 2.121(2) Å. The Co–N bond lengths involving the pyridyl groups [Co1–N6 = 2.157(2) Å] are longer than those corresponding to the triazole rings [Co1–N2 = 2.092(2) Å], which is in good agreement with other isostructural Co II compounds containing abpt ligand , , . The angular distortions of coordination octahedron are determined by the chelate binding of abpt ligands and result in the expected substantial deviations of the chelate bite angle N2–Co1–N6 [76.75(7)°] from 90°; all cis N–Co1–N angles range from 76.75(7)° to 103.25(7)° (Table ).…”
Section: Resultssupporting
confidence: 81%
“…The selected parameters are compared with so far published cobalt‐based SMMs comprising abpt ligand (Table ). To sum up, it is evident that various relaxation mechanisms contribute to the overall process and their identification is not an easy task, however, a better understanding of these mechanisms is crucial for the development of the single‐molecule magnets , …”
Section: Resultsmentioning
confidence: 99%
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