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Self-assembly of novel manganese (II) compounds based on bifunctional-group ligands: Synthesis, structures, and magnetic properties.

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Title: Self-assembly of novel manganese (II) compounds based on bifunctional-group ligands: Synthesis, structures, and magnetic properties.
Authors: Lu, Li-ping1, Yan, Juan-zhi1,2, Zhu, Miao-li1,3, Feng, Si-si1,3
Source: Journal of Solid State Chemistry. Jun2018, Vol. 262, p351-359. 9p.
Subjects: Manganese compounds, Chemical synthesis, Magnetic properties of manganese compounds, Crystal structure, Ligands (Chemistry), Porous materials
Abstract: Four manganese (II) compounds are obtained by the reaction of manganese salts, triazole-derivatives and auxiliary reagents in aqueous solution or mix-solvents by routine or hydrothermal reactions. X-ray crystal structure analyses reveal that a neutral 0D compound [Mn(Hmctrz) 2 (H 2 O) 2 ] ( 1 ) (H 2 mctrz = 1 H -1,2,4-triazole-3-carboxylic acid) displays a centro-symmetric mononuclear octahedral entity with two Hmctrz − anions and two water molecules; two neutral 2D clusters [Mn(Hdctrz)(H 2 O) 2 ] n ( 2 ) (H 3 dctrz = 1 H -1,2,4-triazole-3,5-dicarboxylic acid) and [Mn 2 (pbtrz)(btca)] n ·4nH 2 O ( 3 ) (pbtrz = 1,3-bis(1,2,4-triazol-1-yl)-propane&H 4 btca = benzene-1,2,4,5-tetracarboxylic acid) possess layer structures with Hdctrz 2 − linkers ( 2 ) and Mn(II)-pbtrz-Mn(II) building blocks periodically extended by μ -btca 4 − connectors ( 3 ); [Mn(pbtrz)] n ·nOAc·nOH ( 4 ) shows a 3D diamond-shaped cationic framework with the anion void volume of 49.2%. Nitrogenous bases are used as the auxiliary ligand in compound 3 and the temple ligand in compounds 1 , 2 , and 4 . Compounds 1 – 4 show antiferromagnetic coupling that has been fitted by different models with the molecular field approximate with D = − 0.129(1) cm −1 for 1 , J = − 0.354(4) cm −1 for 2 and J = − 0.696(6) cm −1 for 3 , respectively. The magnetic differences can be related to different superexchange interactions transmitted by the crystal lattice and/or the zero field splitting (ZFS) of the 6 A 1g single-ion states of 1 and the syn-anti -COO − of 2 as well as the mixed magnetic bridges of μ 1 -O and μ -pbtrz- μ -COO − of 3 . [ABSTRACT FROM AUTHOR]
Copyright of Journal of Solid State Chemistry is the property of Academic Press Inc. 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: Self-assembly of novel manganese (II) compounds based on bifunctional-group ligands: Synthesis, structures, and magnetic properties.
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  Data: <searchLink fieldCode="AR" term="%22Lu%2C+Li-ping%22">Lu, Li-ping</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yan%2C+Juan-zhi%22">Yan, Juan-zhi</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Zhu%2C+Miao-li%22">Zhu, Miao-li</searchLink><relatesTo>1,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Feng%2C+Si-si%22">Feng, Si-si</searchLink><relatesTo>1,3</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Solid+State+Chemistry%22">Journal of Solid State Chemistry</searchLink>. Jun2018, Vol. 262, p351-359. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Manganese+compounds%22">Manganese compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+synthesis%22">Chemical synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+properties+of+manganese+compounds%22">Magnetic properties of manganese compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Crystal+structure%22">Crystal structure</searchLink><br /><searchLink fieldCode="DE" term="%22Ligands+%28Chemistry%29%22">Ligands (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Porous+materials%22">Porous materials</searchLink>
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  Label: Abstract
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  Data: Four manganese (II) compounds are obtained by the reaction of manganese salts, triazole-derivatives and auxiliary reagents in aqueous solution or mix-solvents by routine or hydrothermal reactions. X-ray crystal structure analyses reveal that a neutral 0D compound [Mn(Hmctrz) 2 (H 2 O) 2 ] ( 1 ) (H 2 mctrz = 1 H -1,2,4-triazole-3-carboxylic acid) displays a centro-symmetric mononuclear octahedral entity with two Hmctrz − anions and two water molecules; two neutral 2D clusters [Mn(Hdctrz)(H 2 O) 2 ] n ( 2 ) (H 3 dctrz = 1 H -1,2,4-triazole-3,5-dicarboxylic acid) and [Mn 2 (pbtrz)(btca)] n ·4nH 2 O ( 3 ) (pbtrz = 1,3-bis(1,2,4-triazol-1-yl)-propane&H 4 btca = benzene-1,2,4,5-tetracarboxylic acid) possess layer structures with Hdctrz 2 − linkers ( 2 ) and Mn(II)-pbtrz-Mn(II) building blocks periodically extended by μ -btca 4 − connectors ( 3 ); [Mn(pbtrz)] n ·nOAc·nOH ( 4 ) shows a 3D diamond-shaped cationic framework with the anion void volume of 49.2%. Nitrogenous bases are used as the auxiliary ligand in compound 3 and the temple ligand in compounds 1 , 2 , and 4 . Compounds 1 – 4 show antiferromagnetic coupling that has been fitted by different models with the molecular field approximate with D = − 0.129(1) cm −1 for 1 , J = − 0.354(4) cm −1 for 2 and J = − 0.696(6) cm −1 for 3 , respectively. The magnetic differences can be related to different superexchange interactions transmitted by the crystal lattice and/or the zero field splitting (ZFS) of the 6 A 1g single-ion states of 1 and the syn-anti -COO − of 2 as well as the mixed magnetic bridges of μ 1 -O and μ -pbtrz- μ -COO − of 3 . [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Solid State Chemistry is the property of Academic Press Inc. 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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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jssc.2018.03.035
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 9
        StartPage: 351
    Subjects:
      – SubjectFull: Manganese compounds
        Type: general
      – SubjectFull: Chemical synthesis
        Type: general
      – SubjectFull: Magnetic properties of manganese compounds
        Type: general
      – SubjectFull: Crystal structure
        Type: general
      – SubjectFull: Ligands (Chemistry)
        Type: general
      – SubjectFull: Porous materials
        Type: general
    Titles:
      – TitleFull: Self-assembly of novel manganese (II) compounds based on bifunctional-group ligands: Synthesis, structures, and magnetic properties.
        Type: main
  BibRelationships:
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      – PersonEntity:
          Name:
            NameFull: Lu, Li-ping
      – PersonEntity:
          Name:
            NameFull: Yan, Juan-zhi
      – PersonEntity:
          Name:
            NameFull: Zhu, Miao-li
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            NameFull: Feng, Si-si
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          Dates:
            – D: 01
              M: 06
              Text: Jun2018
              Type: published
              Y: 2018
          Identifiers:
            – Type: issn-print
              Value: 00224596
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            – Type: volume
              Value: 262
          Titles:
            – TitleFull: Journal of Solid State Chemistry
              Type: main
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