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Highly luminescent lanthanide complexes with novel bis-β-diketone ligand: Synthesis, characterization and photoluminescent properties

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Title: Highly luminescent lanthanide complexes with novel bis-β-diketone ligand: Synthesis, characterization and photoluminescent properties
Authors: Li, Hong-Feng1, Li, Guang-Ming1, Chen, Peng1, Sun, Wen-Bin1, Yan, Peng-Fei yanpf@vip.sina.com
Source: Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy. Nov2012, Vol. 97, p197-201. 5p.
Subjects: Rare earth metals, Metal complexes, Ligands (Chemistry), Photoluminescence, Inorganic synthesis, Dibenzoylmethane, Ketones
Abstract: Abstract: A biphenyl-linked bis-β-diketone ligand, 3,3′-bis(3-phenyl-3-oxopropanol)biphenyl (BPB) has been prepared for the syntheses of a series of dinuclear lanthanide complexes. The ligand bears two benzoyl β-diketonate sites linked by a 3,3’-biphenyl spacer. Reaction of the doubly negatively charged bis-bidenate ligand with lanthanide ions forms triple-stranded dinuclear complexes Ln2(BPB)3 (Ln=Nd (1), Sm (2), Eu (3), Yb (4) and Gd (5)). Electrospray mass spectrometry is used to identify the formation of the triple-stranded dinuclear complexes 1–5, which have been further characterized by various spectroscopic techniques. The complexes display strong visible and NIR luminescence upon excitation at ligands bands around 360nm, depending on the choice of the lanthanides, and the emission quantum yields and luminescence lifetimes of 2–3 have been determined. It shows that the biphenyl-linked ligand BPB is a more efficient sensitizer than the monodiketone ligand DBM (dibenzoylmethane), through the comparisons of Ln2(BPB)3 and Ln(DBM)3 on their photoluminescent properties. [Copyright &y& Elsevier]
Copyright of Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy 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.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 80033164
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Highly luminescent lanthanide complexes with novel bis-β-diketone ligand: Synthesis, characterization and photoluminescent properties
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Hong-Feng%22">Li, Hong-Feng</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Li%2C+Guang-Ming%22">Li, Guang-Ming</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Chen%2C+Peng%22">Chen, Peng</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sun%2C+Wen-Bin%22">Sun, Wen-Bin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yan%2C+Peng-Fei%22">Yan, Peng-Fei</searchLink><i> yanpf@vip.sina.com</i>
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  Data: <searchLink fieldCode="DE" term="%22Rare+earth+metals%22">Rare earth metals</searchLink><br /><searchLink fieldCode="DE" term="%22Metal+complexes%22">Metal complexes</searchLink><br /><searchLink fieldCode="DE" term="%22Ligands+%28Chemistry%29%22">Ligands (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Photoluminescence%22">Photoluminescence</searchLink><br /><searchLink fieldCode="DE" term="%22Inorganic+synthesis%22">Inorganic synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Dibenzoylmethane%22">Dibenzoylmethane</searchLink><br /><searchLink fieldCode="DE" term="%22Ketones%22">Ketones</searchLink>
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  Data: Abstract: A biphenyl-linked bis-β-diketone ligand, 3,3′-bis(3-phenyl-3-oxopropanol)biphenyl (BPB) has been prepared for the syntheses of a series of dinuclear lanthanide complexes. The ligand bears two benzoyl β-diketonate sites linked by a 3,3’-biphenyl spacer. Reaction of the doubly negatively charged bis-bidenate ligand with lanthanide ions forms triple-stranded dinuclear complexes Ln2(BPB)3 (Ln=Nd (1), Sm (2), Eu (3), Yb (4) and Gd (5)). Electrospray mass spectrometry is used to identify the formation of the triple-stranded dinuclear complexes 1–5, which have been further characterized by various spectroscopic techniques. The complexes display strong visible and NIR luminescence upon excitation at ligands bands around 360nm, depending on the choice of the lanthanides, and the emission quantum yields and luminescence lifetimes of 2–3 have been determined. It shows that the biphenyl-linked ligand BPB is a more efficient sensitizer than the monodiketone ligand DBM (dibenzoylmethane), through the comparisons of Ln2(BPB)3 and Ln(DBM)3 on their photoluminescent properties. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy 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.saa.2012.05.078
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 5
        StartPage: 197
    Subjects:
      – SubjectFull: Rare earth metals
        Type: general
      – SubjectFull: Metal complexes
        Type: general
      – SubjectFull: Ligands (Chemistry)
        Type: general
      – SubjectFull: Photoluminescence
        Type: general
      – SubjectFull: Inorganic synthesis
        Type: general
      – SubjectFull: Dibenzoylmethane
        Type: general
      – SubjectFull: Ketones
        Type: general
    Titles:
      – TitleFull: Highly luminescent lanthanide complexes with novel bis-β-diketone ligand: Synthesis, characterization and photoluminescent properties
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            NameFull: Li, Hong-Feng
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            NameFull: Li, Guang-Ming
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            NameFull: Chen, Peng
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            NameFull: Sun, Wen-Bin
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            NameFull: Yan, Peng-Fei
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            – D: 01
              M: 11
              Text: Nov2012
              Type: published
              Y: 2012
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              Value: 97
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            – TitleFull: Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy
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