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首页> 外文期刊>Advanced Materials for Optics and Electronics >Infrared Spectra of [Ni(dddt)_2]_3(AuBr_2)_2 and [Pd(dddt)_2]_2X (X≡TeCl_6, SbF_6, AuBr_2) Crystals
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Infrared Spectra of [Ni(dddt)_2]_3(AuBr_2)_2 and [Pd(dddt)_2]_2X (X≡TeCl_6, SbF_6, AuBr_2) Crystals

机译:[Ni(dddt)_2] _3(AuBr_2)_2和[Pd(dddt)_2] _2X(X≡TeCl_6,SbF_6,AuBr_2)晶体的红外光谱

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摘要

Polarised reflectance and/or transmission spectra of [Ni(dddt)_2]_3(AuBr_2)_2 and [Pd(dddt)_2]_2X (X≡TeCl_6, SbF_6, AuBr_2; dddt≡5,6-dihydro-1,3-dithiin-2,3-dithiolate) single crystals are measured in the IR region (650-6 500 cm~(-1)). A metal-insulator phase transition in [Pd(dddt)_2]_2SbF_6 at T = 200 K has an influence on the IR spectra. A plasma-edge-like dispersion is analysed in terms of the Drude-Lorentz model. Vibrational and electronic bands are discussed.
机译:[Ni(dddt)_2] _3(AuBr_2)_2和[Pd(dddt)_2] _2X(X≡TeCl_6,SbF_6,AuBr_2;dddt≡5,6-dihydro-1,3-的偏振反射率和/或透射光谱在IR区域(650-6 500 cm〜(-1))中测量了Dithiin-2,3-dithiolate)单晶。 T = 200 K时[Pd(dddt)_2] _2SbF_6中的金属-绝缘体相变对IR光谱有影响。根据Drude-Lorentz模型分析了类似等离子体边缘的分散体。讨论了振动带和电子带。

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