Syntheses, structures and properties of two multi-iron-samarium/multi-iron substituted germanotungstates

Jun Wang; Jun Wei Zhao; Hai Yan Zhao; Bai Feng Yang; Huan He; Guo Yu Yang

doi:10.1039/c3ce42023j

Syntheses, structures and properties of two multi-iron-samarium/multi-iron substituted germanotungstates

Jun Wang, Jun Wei Zhao^*, Hai Yan Zhao, Bai Feng Yang, Huan He, Guo Yu Yang

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

A heterometallic hexameric germanotungstate containing iron-lanthanide cluster fragments (enH₂)₁₃HK₉[Fe ₆Sm₆(H₂O)₁₂(α-GeW ₁₀O₃₈)₆]·42H₂O (1) and a hexairon substituted double sandwich-type germanotungstate (enH ₂)₆K[HFe₆(B-α-GeW₉O ₃₄)₂(α-GeW₆O₂₆)(H ₂O)₂]·11H₂O (2) (en = 1,2-ethylenediamine) have been hydrothermally synthesized and structurally characterized using elemental analyses, inductively coupled plasma atomic emission spectrometry, IR spectra, powder X-ray diffraction (PXRD), thermogravimetric (TG) analyses and single-crystal X-ray diffraction. The common features of 1 and 2 are that both are based on lacunary Keggin-type germanotungstate fragments. 1 is the first heterometallic hexameric germanotungstate consisting of six {Fe-(μ₃-O)₃-Sm} bridges, while two double sandwich-type fragments in 2 are connected together through two potassium cations forming hexameric germanotungstate units. The magnetic susceptibility measurements demonstrate the presence of antiferromagnetic interactions in both compounds.

Original language	English
Pages (from-to)	252-259
Number of pages	8
Journal	CrystEngComm
Volume	16
Issue number	2
DOIs	https://doi.org/10.1039/c3ce42023j
Publication status	Published - 14 Jan 2014

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title = "Syntheses, structures and properties of two multi-iron-samarium/multi-iron substituted germanotungstates",

abstract = "A heterometallic hexameric germanotungstate containing iron-lanthanide cluster fragments (enH2)13HK9[Fe 6Sm6(H2O)12(α-GeW 10O38)6]·42H2O (1) and a hexairon substituted double sandwich-type germanotungstate (enH 2)6K[HFe6(B-α-GeW9O 34)2(α-GeW6O26)(H 2O)2]·11H2O (2) (en = 1,2-ethylenediamine) have been hydrothermally synthesized and structurally characterized using elemental analyses, inductively coupled plasma atomic emission spectrometry, IR spectra, powder X-ray diffraction (PXRD), thermogravimetric (TG) analyses and single-crystal X-ray diffraction. The common features of 1 and 2 are that both are based on lacunary Keggin-type germanotungstate fragments. 1 is the first heterometallic hexameric germanotungstate consisting of six {Fe-(μ3-O)3-Sm} bridges, while two double sandwich-type fragments in 2 are connected together through two potassium cations forming hexameric germanotungstate units. The magnetic susceptibility measurements demonstrate the presence of antiferromagnetic interactions in both compounds.",

author = "Jun Wang and Zhao, {Jun Wei} and Zhao, {Hai Yan} and Yang, {Bai Feng} and Huan He and Yang, {Guo Yu}",

year = "2014",

month = jan,

day = "14",

doi = "10.1039/c3ce42023j",

language = "English",

volume = "16",

pages = "252--259",

journal = "CrystEngComm",

issn = "1466-8033",

publisher = "Royal Society of Chemistry",

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AU - Wang, Jun

AU - Zhao, Jun Wei

AU - Zhao, Hai Yan

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AU - He, Huan

AU - Yang, Guo Yu

PY - 2014/1/14

Y1 - 2014/1/14

N2 - A heterometallic hexameric germanotungstate containing iron-lanthanide cluster fragments (enH2)13HK9[Fe 6Sm6(H2O)12(α-GeW 10O38)6]·42H2O (1) and a hexairon substituted double sandwich-type germanotungstate (enH 2)6K[HFe6(B-α-GeW9O 34)2(α-GeW6O26)(H 2O)2]·11H2O (2) (en = 1,2-ethylenediamine) have been hydrothermally synthesized and structurally characterized using elemental analyses, inductively coupled plasma atomic emission spectrometry, IR spectra, powder X-ray diffraction (PXRD), thermogravimetric (TG) analyses and single-crystal X-ray diffraction. The common features of 1 and 2 are that both are based on lacunary Keggin-type germanotungstate fragments. 1 is the first heterometallic hexameric germanotungstate consisting of six {Fe-(μ3-O)3-Sm} bridges, while two double sandwich-type fragments in 2 are connected together through two potassium cations forming hexameric germanotungstate units. The magnetic susceptibility measurements demonstrate the presence of antiferromagnetic interactions in both compounds.

AB - A heterometallic hexameric germanotungstate containing iron-lanthanide cluster fragments (enH2)13HK9[Fe 6Sm6(H2O)12(α-GeW 10O38)6]·42H2O (1) and a hexairon substituted double sandwich-type germanotungstate (enH 2)6K[HFe6(B-α-GeW9O 34)2(α-GeW6O26)(H 2O)2]·11H2O (2) (en = 1,2-ethylenediamine) have been hydrothermally synthesized and structurally characterized using elemental analyses, inductively coupled plasma atomic emission spectrometry, IR spectra, powder X-ray diffraction (PXRD), thermogravimetric (TG) analyses and single-crystal X-ray diffraction. The common features of 1 and 2 are that both are based on lacunary Keggin-type germanotungstate fragments. 1 is the first heterometallic hexameric germanotungstate consisting of six {Fe-(μ3-O)3-Sm} bridges, while two double sandwich-type fragments in 2 are connected together through two potassium cations forming hexameric germanotungstate units. The magnetic susceptibility measurements demonstrate the presence of antiferromagnetic interactions in both compounds.

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Syntheses, structures and properties of two multi-iron-samarium/multi-iron substituted germanotungstates

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