Thiacalix[4]arene-Supported Planar Ln4 (Ln = TbIII, DyIII) Clusters: Toward Luminescent and Magnetic Bifunctional Materials

被引：152

作者：

Bi, Yanfeng ^{[1
,3
]}

Wang, Xiu-Teng ^{[2
]}

Liao, Wuping ^{[1
]}

Wang, Xinwu ^{[1
]}

Deng, Ruiping ^{[1
]}

Zhang, Hongjie ^{[1
]}

Gao, Song ^{[2
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun 130022, Peoples R China

[2] Peking Univ, Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

[3] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

来源：

INORGANIC CHEMISTRY | 2009年 / 48卷 / 24期

基金：

中国国家自然科学基金;

关键词：

SINGLE-MOLECULE-MAGNET; COORDINATION POLYMERS; MULTIFUNCTIONAL MATERIALS; DYSPROSIUM TRIANGLES; TRANSITION-METAL; COMPLEXES; BEHAVIOR; IONS; PHOTOLUMINESCENCE; RELAXATION;

D O I：

10.1021/ic9017807

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

This paper reports the syntheses, crystal structures, and luminescent and magnetic properties of four tetranuclear Tb-III (1 and 3) and Dy-III (2 and 4) complexes supported by p-phenylthiacalix[4]arene (H(4)PTC4A) and p-tert-butylthiacalix-[4]arene (H(4)TC4A). All four frameworks can be formulated as [Ln(4)(III)(PTC4A/TC4A)(2)(mu(4)-OH)Cl-3(CH3OH)(2)(H2O)(3)], and some methanol and water solvent molecules are occupied in the interstices. The compounds are featured with a sandwichlike unit constructed by two tail-to-tail calixarene molecules and a planar tetragonal (mu(4)-OH)Ln(4) cluster. The photoluminescent analyses suggest that there is an efficient ligand-to-Ln(III) energy transfer for compounds 1-3 and H(4)PTC4A is a more efficient "antenna" than H(4)TC4A. The Dy-III compounds exhibit slow magnetic relaxation behavior of single-molecule magnet nature. The substitution of the t-Bu group with a phenyl group at the up-rim of thiacalix[4]arene leads to different extended structures and physical properties of as-synthesized compounds.

引用

页码：11743 / 11747

页数：5

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