Abstract

The phase composition of the interaction product of zinc acetate with hydrogen peroxide in a dispersed aqueous phase of a reverse micellar solution based on oxyethylated Brij 30 surfactant and decane as a dispersion medium is analyzed by powder X-ray diffraction (XRD). Along with ZnO₂ nanoparticle, the isolated product is found to contain needle-like microcrystals that, according to the single crystal XRD analysis, are zinc lactate dihydrate [Zn(lact)₂(H₂O)₂]: a = 6.0196(3) Å, b = 11.9068(4) Å, c = 14.3878(7) Å, Z = 4, space group P2₁2₁2₁. The coordination environment of the Zn atom is a distorted octahedron: Zn–О distances are 2.051(2)-2.099(3) Å, ∠О–Zn–О bond angles are 76.16° and 76.14°. Chelate rings are bent along the О…О line at 22.18° and 11.54°. The Hirshfeld surface (complex sphericity 0.79, asphericity 0.16) is constructed and intermolecular contacts are analyzed. A comparative crystal chemical analysis with the known [Zn(lact)₂(H₂O)₂]·H₂O structure is performed.

中文翻译：

---

乳酸锌二水合物的晶体结构——醋酸锌和水分子石胶束合成 ZnO2 纳米颗粒的副产品

摘要

通过粉末X射线衍射(XRD)分析乙酸锌与过氧化氢在基于氧乙基化Brij 30表面活性剂和癸烷作为分散介质的反胶束溶液的分散水相中的相互作用产物的相组成。与 ZnO ₂纳米颗粒一起，发现分离的产物含有针状微晶，根据单晶 XRD 分析，这些微晶是乳酸锌二水合物 [Zn(lact) ₂ (H ₂ O) ₂ ]：a  = 6.0196(3 ) Å, b  = 11.9068(4) Å, c  = 14.3878(7) Å, Z  = 4, 空间群P 2 ₁ 2 ₁ 2 ₁. Zn 原子的配位环境是一个扭曲的八面体：Zn-О 距离为 2.051(2)-2.099(3) Å，∠О-Zn-О 键角为 76.16° 和 76.14°。螯合环沿 О…О 线弯曲 22.18° 和 11.54°。构建 Hirshfeld 表面（复杂球度 0.79，非球面度 0.16）并分析分子间接触。使用已知的[Zn(lact) ₂ (H ₂ O) ₂ ]·H ₂ O结构进行比较晶体化学分析。