带有赤道 3,4- 二乙氧基苯甲酸配体的桨轮铜（II）复合物的合成、晶体结构、磁性行为和热稳定性。

IF 0.7 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Acta Crystallographica Section C Structural Chemistry Pub Date : 2024-10-01 Epub Date: 2024-09-04 DOI:10.1107/S2053229624008465

Mariano Marziali Bermúdez, Federico G Muller, Ricardo Baggio, Fabio D Cukiernik

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引用次数: 0

摘要

我们合成并鉴定了双核桨轮铜(II)配合物四(μ-3,4-二乙氧基苯甲酸-κ2O:O')双[(乙醇-κO)铜(II)][Cu2(C11H13O4)4(C2H6O)2]。在每个分子中，两个 CuII 中心由四个 3,4-二乙氧基苯甲酸配体以同步方式桥接，两个轴向位置由乙醇分子占据。热重分析（TGA）和差示扫描量热法（DSC）技术对热稳定性进行了研究。通过 SQUID 磁强计对磁性进行了研究，结果表明 CuII-CuII 具有反铁磁交换作用，2J = -288 cm-1，该值符合为此类化合物建立的磁性结构相关性。

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Synthesis, crystal structure, magnetic behaviour and thermal stability of a paddle-wheel copper(II) complex bearing equatorial 3,4-diethoxybenzoate ligands.

The binuclear paddle-wheel copper(II) complex tetrakis(μ-3,4-diethoxybenzoato-κ²O:O')bis[(ethanol-κO)copper(II)], [Cu₂(C₁₁H₁₃O₄)₄(C₂H₆O)₂], has been synthesized and characterized. In each molecule, two Cu^II centres are bridged in a syn-syn fashion by four equatorial 3,4-diethoxybenzoate ligands, the two axial positions being occupied by ethanol molecules. The thermal stability has been studied by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) techniques. The magnetic behaviour, studied by SQUID magnetometry, shows a Cu^II-Cu^II antiferromagnetic exchange interaction with 2J = -288 cm^-1, a value that fits with a magnetic structure correlation established for compounds of this kind.

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来源期刊

Acta Crystallographica Section C Structural Chemistry CHEMISTRY, MULTIDISCIPLINARYCRYSTALLOGRAPH-CRYSTALLOGRAPHY

CiteScore

1.60

自引率

12.50%

发文量

148

期刊介绍： Acta Crystallographica Section C: Structural Chemistry is continuing its transition to a journal that publishes exciting science with structural content, in particular, important results relating to the chemical sciences. Section C is the journal of choice for the rapid publication of articles that highlight interesting research facilitated by the determination, calculation or analysis of structures of any type, other than macromolecular structures. Articles that emphasize the science and the outcomes that were enabled by the study are particularly welcomed. Authors are encouraged to include mainstream science in their papers, thereby producing manuscripts that are substantial scientific well-rounded contributions that appeal to a broad community of readers and increase the profile of the authors.