Synthesis and crystal structure study of (R,R)-TMCDA ethanol derivatives doubly protonated with FeCl4− and Cl− as counter-ions

IF 0.5 Q4 CRYSTALLOGRAPHY

Acta Crystallographica Section E: Crystallographic Communications Pub Date : 2025-05-01 DOI:10.1107/S2056989025003019

Franziska Dorothea Klotz , Clara Alonso Felipe , Fernando Villafañe , Carsten Strohmann

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Abstract

The synthesis and structural characterization of the crystal forms of (R,R)-TMCDA and its ethanol derivative, both doubly protonated with FeCl₄⁻ and Cl⁻ as counter-ions, are reported. A notable feature across both synthesized compounds is the presence of N—H⋯Cl hydrogen bonds of moderate strength in the solid state. In the case of the ethanol derivative of (R,R)-TMCDA, the structure also reveals the formation of intermolecular O–H⋯Cl hydrogen bonds.

The synthesis and structural characterization of the crystal forms of (R,R)-TMCDA and its ethanol derivative, both doubly protonated with FeCl₄⁻ and Cl⁻ as counter-ions, are reported, namely, (R,R)-N¹,N¹,N²,N²-tetramethylcyclohexane-1,2-bis(aminium) tetrachloridoferrate chloride, (C₁₀H₂₄N₂)[FeCl₄]Cl (1a), and (R,R)-N¹-(2-hydroxyethyl)-N¹,N²,N²-trimethylcyclohexane-1,2-bis(aminium) tetrachloridoferrate chloride (C₁₁H₂₆N₂O)[FeCl₄]Cl (2a). A notable feature across both synthesized compounds is the presence of N—H⋯Cl hydrogen bonds of moderate strength in the solid state. In the case of the ethanol derivative of (R,R)-TMCDA, the structure also reveals the formation of intermolecular O—H⋯Cl hydrogen bonds.

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以FeCl4 -和Cl-为反离子双质子化（R，R）- tmcda乙醇衍生物的合成和晶体结构研究。

晶体的合成和结构表征形式的(R, R) -TMCDA乙醇及其衍生物,与FeCl4双质子化了的——和Cl - counter-ions,报告,即(R, R) - N 1, N 1, N, N 2-tetra-methyl-cyclo-hexane-1,以叔——(aminium)氯化tetra-chlorido-ferrate (C10H24N2) [FeCl4] Cl(1)和(R, R) - N 1 - 1 (2-hy-droxy-eth-yl) - N, N, N 2-tri-methyl-cyclo-hexane-1,以氯化- (aminium) tetra-chlorido-ferrate (C11H26N2O) [FeCl4] Cl(2)。两种合成化合物的一个显著特征是在固态中存在中等强度的N-H⋯Cl氢键。对于（R，R）-TMCDA的乙醇衍生物，其结构也揭示了分子间O-H⋯Cl氢键的形成。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acta Crystallographica Section E: Crystallographic Communications Chemistry-Chemistry (all)

CiteScore

1.90

自引率

0.00%

发文量

351

审稿时长

3 weeks

期刊介绍： Acta Crystallographica Section E: Crystallographic Communications is the IUCr''s open-access structural communications journal. It provides a fast, simple and easily accessible publication mechanism for crystal structure determinations of inorganic, metal-organic and organic compounds. The electronic submission, validation, refereeing and publication facilities of the journal ensure rapid and high-quality publication of fully validated structures. The primary article category is Research Communications; these are peer-reviewed articles describing one or more structure determinations with appropriate discussion of the science.