Diaquaiminodiacetatonickel(II)

Wu, Yan-Rong; Liu, Long; Rong-Bin, Huang; Zheng, Lan‐Sun; Ng, Seik Weng

doi:10.1107/s1600536803011279

Cited by 5 publications

(5 citation statements)

References 7 publications

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“…The rest of the coordination sphere is fulfilled either by two IDA carboxylate O atoms (for Ni1, Ni3, Ni4, and Ni10) or by one carboxylate O atom and a terminal aqua ligand (for Ni2). The average distances of Ni−N (2.079 Å) and Ni−O (IDA, 2.049 Å) are in good agreement with other crystallographically characterized Ni−IDA systems . The Ni−O distances (μ 3 -OH, 2.036 Å; terminal aqua ligand, 2.072 Å) are also within the ranges expected for such a coordination. , …”

Section: Resultssupporting

confidence: 84%

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Dual Shell-like Magnetic Clusters Containing Ni^II and Ln^III (Ln = La, Pr, and Nd) Ions

et al. 2008

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Dual shell-like nanoscopic magnetic clusters featuring a polynuclear nickel(II) framework encapsulating that of lanthanide ions (Ln = La, Pr, and Nd) were synthesized using Ni(NO3)(2).6H2O, Ln(NO3)(3).6H2O, and iminodiacetic acid (IDA) under hydrothermal conditions. Structurally established by crystallographic studies, these clusters are [La20Ni30(IDA)30(CO3)6(NO3)6(OH)30(H2O)12](CO3)(6).72H2O (1), [Ln20Ni21(C4H5NO4)21(OH)24(C2H2O3)6(C2O4)3(NO3)9(H2O)12](NO3)9.nH2O [C2H2O3 is the alkoxide form of glycolate; Ln = Pr (2), n = 42; Nd (3), n = 50], and {[La4Ni5Na(IDA)5(CO3)(NO3)4(OH)5(H2O)5][CO3].10H2O} infinity (4). Carbonate, oxalate, and glycolate are products of hydrothermal decomposition of IDA. Compositions of these compounds were confirmed by satisfactory elemental analyses. It has been found that the cluster structure is dependent on the identity of the lanthanide ion as well as the starting Ln/Ni/IDA ratio. The cationic cluster of 1 features a core of the Keplerate type with an outer icosidodecahedron of Ni(II) ions encaging a dodecahedral kernel of La(III). Clusters 2 and 3, distinctly different from 1, are isostructural, possessing a core of an outer shell of 21 Ni(II) ions encapsulating an inner shell of 20 Ln(III) ions. Complex 4 is a three-dimensional assembly of cluster building blocks connected by units of Na(NO3)/La(NO3)3; the structure of the building block resembles closely that of 1, with a hydrated La(III) ion internalized in the decanuclear cage being an extra feature. Magnetic studies indicated ferromagnetic interactions in 1, while overall antiferromagnetic interactions were revealed for 2 and 3. The polymeric, three-dimensional cluster network 4 displayed interesting ferrimagnetic interactions.

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Section: Resultssupporting

confidence: 84%

“…The Ni II ions form the outer shell structure and are connected exclusively by the carboxylate groups of the IDA ligands in an anti−syn fashion (Figure ) . Ni1, Ni3, and Ni10 are each connected with four neighboring Ni centers, whereas Ni2 or Ni4 has only three Ni neighbors (For atomic labelings, see Figure S1, Supporting Information.)…”

Section: Resultsmentioning

confidence: 99%

Dual Shell-like Magnetic Clusters Containing Ni^II and Ln^III (Ln = La, Pr, and Nd) Ions

et al. 2008

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“…In (Fig. 1), two deprotonated iminodiacetate dianions each chelate to the nickel atom, the three chelating atoms occupying fac positions of the octahedral geometry of nickel, a feature that is also found in diaqua-(iminodiacetato)nickel (Wu et al, 2003). Meanwhile, the iminodiacetate monoanion, which lies about a twofold rotation axis, O,O′-chelates to the water-coordinated lanthanum atom.…”

Section: S1 Commentmentioning

confidence: 92%

“…For lanthanum/nickel complexes, see: Kong et al (2007). For diaqua(iminodiacetato)nickel, see: Wu et al (2003). For other lanthanum derivatives, see: Albertsson & Oskarsson (1968, 1974; Bombieri et al (1974); Li et al (1997Li et al ( , 1999.…”

Section: Related Literaturementioning

confidence: 99%

Poly[[(μ₄-iminiodiacetato)bis(μ₃-iminodiacetato)lanthanum(III)nickel(II)] monohydrate]

Ren

2007

Acta Cryst E

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Key indicators: single-crystal X-ray study; T = 173 K; mean (C-C) = 0.004 Å; disorder in solvent or counterion; R factor = 0.024; wR factor = 0.062; data-toparameter ratio = 14.4.The Ni II atom in the title compound,by two iminodiacetate dianions and it occupies a special position of site symmetry 1; the [Ni(C 4 H 5 NO 4 ) 2 ] unit functions as a 2 -bridge that links the [La(C 4 H 6 NO 4 )] units into a layer structure. The iminiodiacetate monoanion in the O,O 0 carboxyl -chelated [La(C 4 H 6 -NO 4 )] unit lies about a special position of site symmetry 2; one of the two O atoms is also coordinated to another La atom. The rare-earth atom lies in a bicapped square-antiprismatic environment in the layer coordination polymer.

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“…[6,7]. Magnetic exchange inside metal-organic dimers or 1D magnetic interactions can be found in crystals which are composed of chains of metals, bridged by carboxylate groups of organic molecules and which contain additional large organic ligands as spacers to separate the chains [8][9][10][11][12][13][14]. Molecules such as betaine b = (CH 3 ) 3 NCH 2 COO, with one carboxylate group and a large chemically inactive tail, may combine the bridging and spacer functions in one entity.…”

Section: Introductionmentioning

confidence: 99%

Magneto-structural correlations in a new oxalato-bridged Cu(II) alternating-exchange spin-chain compound

Remović-Langer¹,

Wiehl²,

Pashchenko³

et al. 2007

J. Phys.: Condens. Matter

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A new oxalato-bridged copper(II) compound, Cu(ox)(pyOH)•H 2 O (ox = oxalate, pyOH = 3-hydroxypyridine), has been synthesized and characterized by x-ray diffraction and magnetic susceptibility measurements. The Cu(II) ions are bridged by oxalate molecules with two different arrangements alternating along a chain parallel to the b-axis. To the best of our knowledge, this is the first example of a metal-oxalate chain with such a combination of oxalate bridges. Due to the specific structural properties, the magnetic susceptibility was analysed in the framework of an alternating-exchange spin-chain. From a least-squares fit, an antiferromagnetic coupling constant J 1 = (442 ± 5) K and an alternation parameter α = 0.13 ± 0.06 were derived, which classify Cu(ox)(pyOH)•H 2 O as a strongly dimerized spin-chain compound. It is argued that the strength of the magnetic coupling is mainly determined by the displacement of the Cu(II) ions out of the basal plane of the local Cu environment.

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Diaquaiminodiacetatonickel(II)

Cited by 5 publications

References 7 publications

Dual Shell-like Magnetic Clusters Containing Ni^II and Ln^III (Ln = La, Pr, and Nd) Ions

Dual Shell-like Magnetic Clusters Containing Ni^II and Ln^III (Ln = La, Pr, and Nd) Ions

Poly[[(μ₄-iminiodiacetato)bis(μ₃-iminodiacetato)lanthanum(III)nickel(II)] monohydrate]

Magneto-structural correlations in a new oxalato-bridged Cu(II) alternating-exchange spin-chain compound

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Diaquaiminodiacetatonickel(II)

Cited by 5 publications

References 7 publications

Dual Shell-like Magnetic Clusters Containing NiII and LnIII (Ln = La, Pr, and Nd) Ions

Dual Shell-like Magnetic Clusters Containing NiII and LnIII (Ln = La, Pr, and Nd) Ions

Poly[[(μ4-iminiodiacetato)bis(μ3-iminodiacetato)lanthanum(III)nickel(II)] monohydrate]

Magneto-structural correlations in a new oxalato-bridged Cu(II) alternating-exchange spin-chain compound

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Dual Shell-like Magnetic Clusters Containing Ni^II and Ln^III (Ln = La, Pr, and Nd) Ions

Dual Shell-like Magnetic Clusters Containing Ni^II and Ln^III (Ln = La, Pr, and Nd) Ions

Poly[[(μ₄-iminiodiacetato)bis(μ₃-iminodiacetato)lanthanum(III)nickel(II)] monohydrate]