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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Raman, FTIR, photoacoustic-infrared, and inelastic neutron scattering spectra of ternary metal hydride salts A _2MH _5, (A = Ca, Sr, Eu; M = Ir, Rh) and their deuterides
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Raman, FTIR, photoacoustic-infrared, and inelastic neutron scattering spectra of ternary metal hydride salts A _2MH _5, (A = Ca, Sr, Eu; M = Ir, Rh) and their deuterides

机译:三元金属氢化物盐A _2MH _5(A = Ca,Sr,Eu; M = Ir,Rh)及其氘化物的拉曼光谱,FTIR,光声红外光谱和非弹性中子散射光谱

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摘要

The vibrational spectra of the ternary metal hydride (deuteride) salts, A _2MH _5 and A _2MD _5, where A = calcium, strontium and europium and M = iridium(I) and rhodium(I), have been assigned using Raman, Fourier transform infrared, photoacoustic infrared, and inelastic neutron scattering spectroscopies and density functional theory (DFT) calculations. The wavenumbers of the infrared-active stretching vibrations depend upon the ionization energies of the central metal atom and the cation. The phase transition in calcium pentahydridoiridate(I) was studied as a function of temperature and pressure.
机译:已使用拉曼,傅立叶变换指定了三元金属氢化物(氘代)盐A _2MH _5和A _2MD _5的振动光谱,其中A =钙,锶和euro,M =铱(I)和铑(I)。红外,光声红外和非弹性中子散射光谱学和密度泛函理论(DFT)计算。红外活动拉伸振动的波数取决于中心金属原子和阳离子的电离能。研究了五氢碘化钙(I)中的相变与温度和压力的关系。

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