pH-dependent Co(II) assemblies from achiral 2-benzothiazolylthioacetic acid: crystal structures, symmetry breaking, and magnetic properties

被引：2

作者：

Shu, Chun-Yue ^{[1
]}

Huang, Fu-Ping ^{[1
]}

Yu, Qing ^{[1
]}

Yao, Peng-Fei ^{[1
]}

Bian, He-Dong ^{[2
]}

Lan, Ru-Qian ^{[2
]}

Wei, Bei-Lei ^{[1
]}

机构：

[1] Guangxi Normal Univ, Sch Chem & Pharmaceut Sci, Key Lab Chem & Mol Engn Med Resources, Minist Educ China, Guilin, Peoples R China

[2] Guangxi Univ Nationalities, Sch Chem & Chem Engn, Nanning, Peoples R China

来源：

JOURNAL OF COORDINATION CHEMISTRY | 2015年 / 68卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Crystal structure; Chiral symmetry breaking; Magnetic behavior; 2-D COORDINATION POLYMERS; METAL-ORGANIC FRAMEWORKS; AMINO-ACIDS; CRYSTALLIZATION; RESOLUTION; COBALT(II); DIVERSITY; COMPLEXES; CHIRALITY; TOPOLOGY;

D O I：

10.1080/00958972.2015.1038996

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Based on an achiral 2-benzothiazolylthioacetic acid (HL) ligand, three Co(II) coordination compounds, {[Co(L)(2)(H2O)(3)]center dot H2O}(n) (1), [Co(L)(2)(H2O)(2)](n) (2), and [Co(L)(2)(H2O)(4)]center dot 2H(2)O (3), were obtained under different pH environments. Compound 1 possessing an interesting chiral 1-D helical double chain was synthesized with pH of 5.0 similar to 6.5, and the chiral symmetry breaking has been probed by single-crystal X-ray diffraction and circular dichroism spectroscopy. Switching pH to 4.0 similar to 5.0 and 3.0 similar to 4.0 resulted in achiral 2 and 3, respectively. Compound 2 has a 1-D chain structure and 3 is mononuclear.

引用

页码：2107 / 2120

页数：14

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