Specific heat and frequency shifts for the translational modes in ammonia solid I close to phase transition

Yurtseven H; Karacali H

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Specific heat and frequency shifts for the translational modes in ammonia solid I close to phase transition

机译：氨固相I中接近相变的平移模式的比热和频移

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The specific heat C-p is correlated to the frequency shifts (1/v)(partial derivative v/partial derivative T)(p) in ammonia solid I close to the melting point. Our calculated Raman frequencies for the translational modes of v(T) (100 cm(-1)) and v(T) (130 cm(-1)), are used for this correlation for the pressures of 0, 1.93 and 3.07 kbar in this crystalline system. We obtain that the specific heat varied linearly with the frequency shifts for those pressures studied and values of the slope dP(m)/dT were extracted. The observed behaviour of the ammonia solid I near the melting point is explained on the basis of our spectroscopic modification of the first Pippard relation. (C) 2006 Elsevier B.V. All rights reserved.

机译：比热C-p与氨固体I中接近熔点的频移（1 / v）（偏导数v /偏导数T）（p）相关。我们针对v（T）（100 cm（-1））和v（T）（130 cm（-1））的平移模式计算的拉曼频率用于压力为0、1.93和3.07 kbar时的这种相关性在这个晶体系统中。我们获得了所研究的压力的比热随频率变化线性变化的关系，并提取了斜率dP（m）/ dT的值。基于我们对第一皮帕德关系的光谱修改，解释了在熔点附近观察到的氨固体I的行为。（C）2006 Elsevier B.V.保留所有权利。

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《Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy》 |2007年第4期|共7页
作者
Yurtseven H; Karacali H;
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正文语种 eng
中图分类分析化学;
关键词
ammonia solid I; Raman translational modes; melting point; RAMAN FREQUENCIES; MELTING-POINT; NEUTRON-DIFFRACTION; DIAGRAM; DEPENDENCE; PRESSURE; DEUTEROAMMONIA;

机译：氨固I;拉曼转化模式;熔点;拉曼频率;熔点;中子衍射;图;依赖性;压力;氘代氨;

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机译：氨固相I中接近相变的平移模式的比热和频移
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Specific heat and frequency shifts for the translational modes in ammonia solid I close to phase transition

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