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Goura J, Guillaume R, Rivière E, et al. Hexanuclear, heterometallic, Ni₃Ln₃ complexes possessing O-capped homo- and heterometallic structural subunits: SMM behavior of the dysprosium analogue. Inorg Chem. 2014;53(15):7815-23doi: 10.1021/ic403090z.
Goura, J., Guillaume, R., Rivière, E., & Chandrasekhar, V. (2014). Hexanuclear, heterometallic, Ni₃Ln₃ complexes possessing O-capped homo- and heterometallic structural subunits: SMM behavior of the dysprosium analogue. Inorganic chemistry, 53(15), 7815-23. https://doi.org/10.1021/ic403090z
Goura, Joydeb, et al. "Hexanuclear, heterometallic, Ni₃Ln₃ complexes possessing O-capped homo- and heterometallic structural subunits: SMM behavior of the dysprosium analogue." Inorganic chemistry vol. 53,15 (2014): 7815-23. doi: https://doi.org/10.1021/ic403090z
Goura J, Guillaume R, Rivière E, Chandrasekhar V. Hexanuclear, heterometallic, Ni₃Ln₃ complexes possessing O-capped homo- and heterometallic structural subunits: SMM behavior of the dysprosium analogue. Inorg Chem. 2014 Aug 04;53(15):7815-23. doi: 10.1021/ic403090z. Epub 2014 Jul 22. PMID: 25050753.
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Inorg Chem. 2014 Aug 04;53(15):7815-23. doi: 10.1021/ic403090z. Epub 2014 Jul 22.

Hexanuclear, heterometallic, Ni₃Ln₃ complexes possessing O-capped homo- and heterometallic structural subunits: SMM behavior of the dysprosium analogue.

Inorganic chemistry

Joydeb Goura, Rogez Guillaume, Eric Rivière, Vadapalli Chandrasekhar

Affiliations

  1. Department of Chemistry, Indian Institute of Technology Kanpur , Kanpur 208016, India.

PMID: 25050753 DOI: 10.1021/ic403090z

Abstract

The reaction of hetero donor chelating mannich base ligand 6,6'-{(2-(dimethylamino)ethylazanediyl)bis(methylene)}bis(2-methoxy-4-methylphenol) with Ni(ClO4)2·6H2O and lanthanide(III) salts [Dy(III) (1); Tb(III) (2); Gd (III) (3); Ho(III) (4); and Er(III) (5)] in the presence of triethylamine and pivalic acid afforded a series of heterometallic hexanuclear Ni(II)-Ln(III) coordination compounds, [Ni3Ln3(μ3-O)(μ3-OH)3(L)3(μ-OOCCMe3)3]·(ClO4)·wCH3CN·xCH2Cl2·yCH3OH·zH2O [for 1, w = 8, x = 3, y = 0, z = 5.5; for 2, w = 0, x = 5, y = 0, z = 6.5; for 3, w = 15, x = 18, y = 3, z = 7.5; for 4, w = 15, x = 20, y = 6, z = 9.5; and for 5, w = 0, x = 3, y = 2, z = 3]. The molecular structure of these complexes reveals the presence of a monocationic hexanuclear derivative containing one perchlorate counteranion. The asymmetric unit of each of the hexanuclear derivatives comprises the dinuclear motif [NiLn(L)(μ3-O)(μ3-OH)(μ-Piv)]. The cation contains three interlinked O-capped clusters: one Ln(III)3O and three Ni(II)Ln(III)2O. Each of the lanthanide centers is eight- coordinated (distorted trigonal-dodecahedron), while the nickel centers are hexacoordinate (distorted octahedral). The study of the magnetic properties of all compounds are reported and suggests single molecule magnet behavior for the Dy(III) derivative (1).

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