14018-82-7

Basic information

• Product Name: Zinc hydride (ZnH2)
• Synonyms: Zincdihydride; Zinc hydride
• CAS NO: 14018-82-7
• Molecular Formula: H₂Zn
• Molecular Weight: 67.39
• Mol File: 14018-82-7.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: Zinc hydride (ZnH2)(CAS DataBase Reference)
• NIST Chemistry Reference: Zinc hydride (ZnH2)(14018-82-7)
• EPA Substance Registry System: Zinc hydride (ZnH2)(14018-82-7)

Safety Data

• Safety Statements: ZINC COMPOUNDS and HYDRIDES." target="_blank">May ignite spontaneously in air. Violent reaction with aqueous acids. Slow reactio
• Hazardous Substances Data: 14018-82-7(Hazardous Substances Data)

Usage

General Description

Zinc hydride (ZnH2) is a chemical compound composed of zinc and hydrogen atoms. It is a highly reactive and unstable substance that is predominantly used as a reagent in organic synthesis and as a reducing agent in various chemical reactions. Zinc hydride has a relatively high hydrogen content and is considered to be a potential candidate for hydrogen storage materials due to its ability to release hydrogen gas when heated. It is also being researched for its potential application in hydrogen fuel cells and as a catalyst in organic chemical reactions. However, the instability and reactivity of zinc hydride make its handling and storage challenging, and it requires careful precautions to ensure safe use.

Upstream product

• 1333-74-0 hydrogen 
• 7440-66-6 zinc 
• 544-97-8 dimethyl zinc(II) 
• 557-20-0 diethylzinc 

Relevant articles and documents

Vibration-rotation emission spectra of gaseous ZnH2 and ZnD 2

Gaseous ZnH2 and ZnD2 have been discovered in an emission source that combines an electrical discharge with a high-temperature furnace. High-resolution infrared emission spectra of ZnH2 and ZnD2 have been recorded with a Fourier transform spectrometer, and the antisymmetric stretching fundamental bands of 64ZnH2 and 64ZnD2 were detected near 1889.4 and 1371.6 cm-1, respectively. Rotational analysis of the bands yielded r0 bond distances of 1.535271(1) and 1.531836(9) A for linear 64ZnH2 and 64ZnD2, respectively. Copyright

Homogeneous decomposition mechanisms of diethylzinc by Raman spectroscopy and quantum chemical calculations

The gas-phase decomposition pathways of diethylzinc (DEZn), a common precursor for deposition of Zn-VI compounds, were investigated in detail. The homogeneous thermal decomposition of DEZn in N2 carrier was followed in an impinging-jet, up-flow reactor by Raman scattering. Density Functional Theory calculations were performed to describe the bond dissociation behavior using the model chemistry B3LYP/6-311G(d) to estimate optimal geometries and Raman active vibrational frequencies of DEZn, as well as anticipated intermediates and products. Comparison of the measured DEZn decomposition profile to that predicted by a 2-D hydrodynamic simulation revealed that simple bond dissociation between zinc and carbon atoms is the dominant homogeneous thermal decomposition pathway. The calculations suggest several reactions involving intermediates and Raman scattering experiments confirming the formation of the dimer (ZnC2H5)2. In a different set of experiments, photolysis of DEZn gave evidence for decomposition by β-hydride elimination. The results suggest that β-hydride elimination is a minor pathway for the gas-phase homogeneous pyrolysis of diethylzinc. A reasonable transition state during β-hydride elimination was identified, and the calculated energies and thermodynamic properties support the likelihood of these reaction steps.