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Syntheses, structures and properties of a series of inorganic–organic hybrid copper–lanthanide heterometal comprising germanotungstates with mixed ligands.

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Title: Syntheses, structures and properties of a series of inorganic–organic hybrid copper–lanthanide heterometal comprising germanotungstates with mixed ligands.
Authors: Sun, Longhui1, Liu, Yajie1, Wang, Xiuhua1, Li, Hailou1, Luo, Jie1, Chen, Lijuan1 ljchen@henu.edu.cn, Zhao, Junwei1,2 zhaojunwei@henu.edu.cn
Source: Synthetic Metals. Jul2016, Vol. 217, p256-265. 10p.
Subjects: Rare earth metals, Tungstates, Ligands (Chemistry), Copper, Hydrothermal synthesis
Abstract: The hydrothermal reaction of K 8 Na 2 [A-α-GeW 9 O 34 ]·25H 2 O, Cu(CH 3 COO) 2 ·H 2 O, Ln(NO 3 )·6H 2 O and ethylenediamine (en) has led to a series of inorganic–organic hybrid copper–lanthanide heterometal comprising germanotungstates (GTs) [Cu(en) 2 (H 2 O)] 6 [Ln(H 2 O)(CH 3 COO)(α-GeW 11 O 39 )] 2 ·8H 2 O [Ln = Nd 3+ ( 1 ), Sm 3+ ( 2 ), Eu 3+ ( 3 ), Gd 3+ ( 4 ), Dy 3+ ( 5 ), Ho 3+ ( 6 )], which have been characterized by elemental analyses, IR spectra, thermogravimetric (TG) analyses and single-crystal X-ray diffraction. Their common feature of 1 – 6 is that they all comprise a CH 3 COO-bridging mono-Ln substituted dimeric GT fragment [Ln(H 2 O)(CH 3 COO)(α-GeW 11 O 39 )] 2 12− with six supporting [Cu(en) 2 (H 2 O)] 2+ complex cations. To the best of our knowledge, such monovacant Keggin-type GTs containing both Cu–Ln heterometal centers and mixed en and acetate ligands are very rare. The luminescence properties and the lifetime decay behavior of the solid sample of 3 have been intensively investigated at room temperature. [ABSTRACT FROM AUTHOR]
Copyright of Synthetic Metals is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
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  Data: Syntheses, structures and properties of a series of inorganic–organic hybrid copper–lanthanide heterometal comprising germanotungstates with mixed ligands.
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  Data: <searchLink fieldCode="AR" term="%22Sun%2C+Longhui%22">Sun, Longhui</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Liu%2C+Yajie%22">Liu, Yajie</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Wang%2C+Xiuhua%22">Wang, Xiuhua</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Li%2C+Hailou%22">Li, Hailou</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Luo%2C+Jie%22">Luo, Jie</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Chen%2C+Lijuan%22">Chen, Lijuan</searchLink><relatesTo>1</relatesTo><i> ljchen@henu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhao%2C+Junwei%22">Zhao, Junwei</searchLink><relatesTo>1,2</relatesTo><i> zhaojunwei@henu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Synthetic+Metals%22">Synthetic Metals</searchLink>. Jul2016, Vol. 217, p256-265. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Rare+earth+metals%22">Rare earth metals</searchLink><br /><searchLink fieldCode="DE" term="%22Tungstates%22">Tungstates</searchLink><br /><searchLink fieldCode="DE" term="%22Ligands+%28Chemistry%29%22">Ligands (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Copper%22">Copper</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrothermal+synthesis%22">Hydrothermal synthesis</searchLink>
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  Data: The hydrothermal reaction of K 8 Na 2 [A-α-GeW 9 O 34 ]·25H 2 O, Cu(CH 3 COO) 2 ·H 2 O, Ln(NO 3 )·6H 2 O and ethylenediamine (en) has led to a series of inorganic–organic hybrid copper–lanthanide heterometal comprising germanotungstates (GTs) [Cu(en) 2 (H 2 O)] 6 [Ln(H 2 O)(CH 3 COO)(α-GeW 11 O 39 )] 2 ·8H 2 O [Ln = Nd 3+ ( 1 ), Sm 3+ ( 2 ), Eu 3+ ( 3 ), Gd 3+ ( 4 ), Dy 3+ ( 5 ), Ho 3+ ( 6 )], which have been characterized by elemental analyses, IR spectra, thermogravimetric (TG) analyses and single-crystal X-ray diffraction. Their common feature of 1 – 6 is that they all comprise a CH 3 COO-bridging mono-Ln substituted dimeric GT fragment [Ln(H 2 O)(CH 3 COO)(α-GeW 11 O 39 )] 2 12− with six supporting [Cu(en) 2 (H 2 O)] 2+ complex cations. To the best of our knowledge, such monovacant Keggin-type GTs containing both Cu–Ln heterometal centers and mixed en and acetate ligands are very rare. The luminescence properties and the lifetime decay behavior of the solid sample of 3 have been intensively investigated at room temperature. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Synthetic Metals is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.synthmet.2016.04.008
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      – Code: eng
        Text: English
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        Type: general
      – SubjectFull: Tungstates
        Type: general
      – SubjectFull: Ligands (Chemistry)
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      – SubjectFull: Copper
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      – SubjectFull: Hydrothermal synthesis
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      – TitleFull: Syntheses, structures and properties of a series of inorganic–organic hybrid copper–lanthanide heterometal comprising germanotungstates with mixed ligands.
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            NameFull: Sun, Longhui
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            NameFull: Liu, Yajie
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            NameFull: Wang, Xiuhua
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              M: 07
              Text: Jul2016
              Type: published
              Y: 2016
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