Zinc–diethanolamine complex: synthesis, characterization, and formation mechanism of zinc oxide via thermal decomposition
Source abstract
Abstract
Zn(OAc)2(H2DEA) was synthesized by the reaction of zinc acetate dihydrate (Zn(OAc)2•2H2O) with diethanolamine (H2DEA), and was characterized using single-crystal X-ray structural analysis, nuclear magnetic resonance spectroscopy, Fourier-transform infrared (FT-IR) spectroscopy, and elemental analysis. Zn(OAc)2(H2DEA) had a trigonal bipyramidal geometry comprised of one zinc atom, two acetate groups, and one H2DEA as a neutral tridentate ligand to form two five-membered rings. The states of Zn(OAc)2(H2DEA) heated at various temperatures were determined by FT-IR spectroscopy. At 270 °C, the H2DEA ligand dissociated and was removed. The absorption bands assigned to Zn–O stretching vibration of Zn4O core such as the zinc-oxo cluster appeared. When heated at 500 °C, the absorption bands of μ4-oxozincate and the acetate group disappeared completely and hexagonal wurtzite structural ZnO was formed at 550 °C. A possible thermal decomposition pathway from Zn(OAc)2(H2DEA) to ZnO was proposed. The ZnO film was highly transparent and formed by the deposition of ZnO nanoparticles with size ~40 nm.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: ZnO doping and properties · Corrosion Behavior and Inhibition · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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