Four one-dimensional lanthanide-phenylacetate polymers exhibiting luminescence and magnetic cooling/spin-glass behavior

Li Zhong-Yi; Xu Ya-Lan; Zhang Xiang-Fei; Zhai Bin; Zhang Fu-Li; Zhang Jian-Jun; Zhang Chi; Li Su-Zhi; Cao Guang-Xiu

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Four one-dimensional lanthanide-phenylacetate polymers exhibiting luminescence and magnetic cooling/spin-glass behavior

机译：呈现发光和磁性冷却/旋转玻璃行为的四维镧系苯乙酸酯聚合物

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Four isostructural lanthanide coordination polymers with a phenylacetate (PAA(-)) ligand, [Ln(PAA)(3)(H2O)](n) (Ln = Eu (1); Gd (2); Tb (3); Dy (4)), were synthesized under hydrothermal conditions. Complexes 1-4 display a one-dimensional (1D) wave chain structure bridged by the carboxylate of the PAA(-) ligand, which was generated via the in situ decarboxylation of phenylmalonic acid. Magnetic studies suggest the presence of ferromagnetic Ln...Ln coupling in the 1D chain of 1-4. Meanwhile, 2 has a significant cryogenic magnetocaloric effect with the maximum -Delta S-m of 26.73 at 3 K and 7 T, and 3 and 4 show interesting spin-glass behavior, which is rarely reported for Ln-containing complexes. Additionally, the solid-state photophysical properties of 1 and 3 display strong characteristic Eu3+ and Tb3+ photoluminescence emission in the visible region, indicating that Eu- and Tb-based luminescence are sensitized by the effective energy transfer from the ligand to the metal centers.

机译：具有苯乙酸酯（PAA（ - ））配体，[LN（PAA）（3）（3）（3）（N）（LN = Eu（1）; Gd（2）; Tb（3）; Dy的四个同学镧系元素（4）），在水热条件下合成。复合物1-4显示由Paa（ - ）配体的羧酸盐桥接的一维（1D）波链结构，其通过原位脱羧酶产生的苯醛酸的原位脱羧。磁性研究表明在1-4的1D链中存在铁磁性LN ... LN耦合。同时，2具有显着的低温磁热效应，最大 - 丝灯菌S-M为26.73，3 k和7℃，3和4表示有趣的旋转玻璃行为，很少报道含Ln的络合物。另外，1和3的固态光学性质在可见区域中显示出强大的特征EU3 +和TB3 +光致发光发射，表明通过从配体的有效能量转移到金属中心的有效能量转移来敏感欧盟和Tb的发光。

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来源
《Dalton transactions: An international journal of inorganic chemistry》 |2017年第47期|共8页
作者
Li Zhong-Yi; Xu Ya-Lan; Zhang Xiang-Fei; Zhai Bin; Zhang Fu-Li; Zhang Jian-Jun; Zhang Chi; Li Su-Zhi; Cao Guang-Xiu;
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作者单位

Shangqiu Normal Univ Coll Chem &

Chem Engn Engn Res Ctr Photoelect Funct Mat Henan Key Lab Biomol Recognit &

Sensing Shangqiu 476000 Peoples R China;

Shangqiu Normal Univ Coll Chem &

Chem Engn Engn Res Ctr Photoelect Funct Mat Henan Key Lab Biomol Recognit &

Sensing Shangqiu 476000 Peoples R China;

Shangqiu Normal Univ Coll Chem &

Chem Engn Engn Res Ctr Photoelect Funct Mat Henan Key Lab Biomol Recognit &

Sensing Shangqiu 476000 Peoples R China;

Shangqiu Normal Univ Coll Chem &

Chem Engn Engn Res Ctr Photoelect Funct Mat Henan Key Lab Biomol Recognit &

Sensing Shangqiu 476000 Peoples R China;

Shangqiu Normal Univ Coll Chem &

Chem Engn Engn Res Ctr Photoelect Funct Mat Henan Key Lab Biomol Recognit &

Sensing Shangqiu 476000 Peoples R China;

Dalian Univ Technol Chem Coll Dalian 116024 Peoples R China;

Shangqiu Normal Univ Coll Chem &

Chem Engn Engn Res Ctr Photoelect Funct Mat Henan Key Lab Biomol Recognit &

Sensing Shangqiu 476000 Peoples R China;

Shangqiu Normal Univ Coll Chem &

Chem Engn Engn Res Ctr Photoelect Funct Mat Henan Key Lab Biomol Recognit &

Sensing Shangqiu 476000 Peoples R China;

Shangqiu Normal Univ Coll Chem &

Chem Engn Engn Res Ctr Photoelect Funct Mat Henan Key Lab Biomol Recognit &

Sensing Shangqiu 476000 Peoples R China;

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中图分类化学;无机化学;
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1. Four one-dimensional lanthanide-phenylacetate polymers exhibiting luminescence and magnetic cooling/spin-glass behavior [J] . Li Zhong-Yi, Xu Ya-Lan, Zhang Xiang-Fei, Dalton transactions: An international journal of inorganic chemistry . 2017,第47期

机译：呈现发光和磁性冷却/旋转玻璃行为的四维镧系苯乙酸酯聚合物
2. Three chiral one-dimensional lanthanide–ditoluoyl-tartrate bifunctional polymers exhibiting luminescence and magnetic behaviors [J] . Mei-rong Han, Han-tao Zhang, Jia-nan Wang, RSC Advances . 2019,第55期

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Four one-dimensional lanthanide-phenylacetate polymers exhibiting luminescence and magnetic cooling/spin-glass behavior

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