Gitterkonstanten und Raumgruppe einiger Lanthaniden(III)-Oxalat-Dekahydrate

Weigel, F.; Ollendorff, W.

doi:10.1107/s0365110x67001811

Cited by 13 publications

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“…Domain I is encountered for highest temperature and lightest lanthanide ions. In this domain the obtained compounds have general chemical formula [Ln 2 (C 2 O 4 ) 3 (H 2 O) 6 ,4H 2 O] ∞ with Ln = La−Er or Y − . Domain II corresponds to the heaviest lanthanide ions and the highest temperature.…”

Section: Resultsmentioning

confidence: 99%

New Family of Porous Lanthanide-Containing Coordination Polymers: [Ln₂(C₂O₄)₃(H₂O)₆,12H₂O]_∞ with Ln = La−Yb or Y

Kustaryono

Kerbellec

Calvez

et al. 2009

Crystal Growth & Design

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Reactions at low temperature in a mixture benzene/water between dimethyloxalate and a lanthanide chloride lead to a family of 3D-coordination polymers with general chemical formula [Ln2(C2O4)3(H2O)6·12H2O]∞, where Ln = La−Yb (except Pm) or Y. All these compounds are isostructural to the already described [Er2(C2O4)3(H2O)6·12H2O]∞. Their crystal structure can be described as the juxtaposition of channels with hexagonal cross-section. The channels are filled with crystallization water molecules. Their thermal dehydration produces a collapse of the molecular skeleton leading to amorphous compounds. On the opposite, their dehydration by freeze-drying is possible and the twelve crystallization water molecules can be removed without destruction of the molecular skeleton. The porosity of the dehydrated compounds has been estimated by computational methods to 483 m2 g−1. The luminescence properties of the Eu-containing and Tb-containing compounds are also briefly described.

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Section: Resultsmentioning

confidence: 99%

New Family of Porous Lanthanide-Containing Coordination Polymers: [Ln₂(C₂O₄)₃(H₂O)₆,12H₂O]_∞ with Ln = La−Yb or Y

Kustaryono

Kerbellec

Calvez

et al. 2009

Crystal Growth & Design

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Raman spectra of the lanthanide oxalates

Morris

Hobart

1988

J Raman Spectroscopy

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Raman and infrared spectral data are presented for the trivalent lanthanide sesquioxalates, M,(C,O,), * nH,O, except the promethium complex, in the region from 100 to 4000 cm-'. These complexes were isolated by precipitation from aqueous solution using Na,C,O, . In addition, several commercially available oxalate complexes were examined. On the basis of nearly identical Raman spectral patterns, two distinct structural groups have been identified. The first group consists of the isostructural (monoclinic) decahydrates of La3+ through Er". For this group, a linear correlation is found for the frequencies of several skeletal stretching modes versus the lanthanide ionic radius. The second group consists of the isostructural (triclinic) hexahydrates of Er3+ through Lu3+. In agreement with existing x-ray diffraction data, these vibrational data indicate structural differences between the hexa-and deca-hydrates. In addition, unique vibrational spectral patterns have been obtained for what appear to be other hydrated forms of the oxalates of Ho3+, Er3+ and Lu", possessing structures different from those of the above hexa-and deca-hydrates. For all of these complexes, the Raman data suggest that the oxalate ligand is tetradentate coordinated to two lanthanide ions. Thus, the structural differences undoubtedly result from the lanthanide contraction and changes in the disposition of coordinated and interstitial water molecules.

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1967 - 1968

Schudt¹,

Weitz²

Structure Data of Organic Crystals

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Gitterkonstanten und Raumgruppe einiger Lanthaniden(III)-Oxalat-Dekahydrate

Cited by 13 publications

References 0 publications

New Family of Porous Lanthanide-Containing Coordination Polymers: [Ln₂(C₂O₄)₃(H₂O)₆,12H₂O]_∞ with Ln = La−Yb or Y

New Family of Porous Lanthanide-Containing Coordination Polymers: [Ln₂(C₂O₄)₃(H₂O)₆,12H₂O]_∞ with Ln = La−Yb or Y

Raman spectra of the lanthanide oxalates

1967 - 1968

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Gitterkonstanten und Raumgruppe einiger Lanthaniden(III)-Oxalat-Dekahydrate

Cited by 13 publications

References 0 publications

New Family of Porous Lanthanide-Containing Coordination Polymers: [Ln2(C2O4)3(H2O)6,12H2O]∞ with Ln = La−Yb or Y

New Family of Porous Lanthanide-Containing Coordination Polymers: [Ln2(C2O4)3(H2O)6,12H2O]∞ with Ln = La−Yb or Y

Raman spectra of the lanthanide oxalates

1967 - 1968

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Product

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About

New Family of Porous Lanthanide-Containing Coordination Polymers: [Ln₂(C₂O₄)₃(H₂O)₆,12H₂O]_∞ with Ln = La−Yb or Y

New Family of Porous Lanthanide-Containing Coordination Polymers: [Ln₂(C₂O₄)₃(H₂O)₆,12H₂O]_∞ with Ln = La−Yb or Y