Crystal structure and cryomagnetic study of a mononuclear erbium(III) oxamate inclusion complex.

IF 0.7 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Acta Crystallographica Section C Structural Chemistry Pub Date : 2024-08-01 Epub Date: 2024-07-10 DOI:10.1107/S2053229624005977

Cleber R Araujo Junior, Willian X C Oliveira, Carlos B Pinheiro, Emerson F Pedroso, Wallace C Nunes, Adriele A de Almeida, Marcelo Knobel, Miguel Julve, Cynthia L M Pereira

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Abstract

The synthesis, crystal structure and magnetic properties of an oxamate-containing erbium(III) complex, namely, tetrabutylammonium aqua[N-(2,4,6-trimethylphenyl)oxamato]erbium(III)-dimethyl sulfoxide-water (1/3/1.5), (C₁₆H₃₆N)[Er(C₁₁H₁₂NO₃)₄(H₂O)]·3C₂H₆OS·1.5H₂O or n-Bu₄N[Er(Htmpa)₄(H₂O)]·3DMSO·1.5H₂O (1), are reported. The crystal structure of 1 reveals the occurrence of an erbium(III) ion, which is surrounded by four N-phenyl-substituted oxamate ligands and one water molecule in a nine-coordinated environment, together with one tetrabutylammonium cation acting as a counter-ion, and one water and three dimethyl sulfoxide (DMSO) molecules of crystallization. Variable-temperature static (dc) and dynamic (ac) magnetic measurements were carried out for this mononuclear complex, revealing that it behaves as a field-induced single-ion magnet (SIM) below 5.0 K.

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单核草氨酸铒（III）包涵复合物的晶体结构和低温磁性研究。

四丁基铵水[N-(2,4,6-三甲基苯基)氨基氧]铒(III)-二甲基亚砜-水（1/3/1.5）、(C16H36N)[Er(C11H12NO3)4(H2O)]-3C2H6OS-1.5H2O 或 n-Bu4N[Er(Htmpa)4(H2O)]-3DMSO-1.5H2O（1）。1 的晶体结构显示了一个铒（III）离子，它被四个 N-苯基取代的草氨酸配体和一个水分子包围，处于九配位环境中，还有一个四丁基铵阳离子作为反离子，以及一个水分子和三个二甲基亚砜（DMSO）结晶分子。对这种单核复合物进行了变温静态（直流）和动态（交流）磁性测量，结果表明它在 5.0 K 以下表现为场诱导单离子磁体（SIM）。

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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.