Synthesis, crystal structures, and theoretical calculations of two diverse three-dimensional hybrid materials based on polyoxoanions bridging macrocyclic copper/nickel complex

Xie, Jinhui; Tan, Ying-Zhi; Li, Zunhua; Zhou, Qiang; Ou, Guang‐Chuan

doi:10.1080/24701556.2020.1813171

Cited by 2 publications

(1 citation statement)

References 22 publications

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“…If treating the macrocycle as node and the π-stacked pair of benzimidazoylmethyl arms as linker, the 3D network can be simplified as an α-P o net (Figure 2d). Alternatively, the 3D network can be simplified as a pcu-h net if treating [ClLCo II ] + as node and the π-stacked pair of benzimidazoylmethyl arms as linker (Figure S4) [36].…”

Section: Trapping the Ester Hydratementioning

confidence: 99%

Trapping an Ester Hydrate Intermediate in a π-Stacked Macrocycle with Multiple Hydrogen Bonds

Wang

Nan

et al. 2023

Molecules

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Ester hydrates, as the intermediates of the esterification between acid and alcohol, are very short-lived and challenging to be trapped. Therefore, the crystal structures of ester hydrates have rarely been characterized. Herein, we present that the mono-deprotonated ester hydrates [CH3OSO2(OH)2]−, serving as the template for the self-assembly of a π-stacked boat-shaped macrocycle (CH3OSO2(OH)2)0.67(CH3OSO3)1.33@{[ClLCoII]6}·Cl4·13CH3OH·9H2O (1) (L = tris(2-benzimidazolylmethyl) amine), can be trapped in the host by multiple NH···O hydrogen bonds. In the solution of CoCl2, L, and H2SO4 in MeOH, HSO4− reacts with MeOH, producing [CH3OSO3]− via the ester hydrate intermediate of [CH3OSO3(OH)2]−. Both the product and the intermediate serve as the template directing the self-assembly of the π-stacked macrocycle, in which the short-lived ester hydrate is firmly trapped and stabilized, as revealed by single-crystal analysis.

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Section: Trapping the Ester Hydratementioning

confidence: 99%