SIMULTANEOUS APPLICATION OF CHARGE COUPLED DEVICE ARRAY-DETECTED RAMAN-SPECTROSCOPY AND DIFFERENTIAL SCANNING CALORIMETRY TO INSITU INVESTIGATION OF PHASE-TRANSITIONS IN CONDENSED MATTER

被引：10

作者：

HARJU, MEE

VALKONEN, J

JAYASOORIYA, UA

WOLVERSON, D

机构：

[1] UNIV E ANGLIA,SCH CHEM SCI,NORWICH NR4 7TJ,NORFOLK,ENGLAND

[2] UNIV E ANGLIA,SCH PHYS,NORWICH NR4 7TJ,NORFOLK,ENGLAND

来源：

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1992年 / 88卷 / 18期

关键词：

D O I：

10.1039/ft9928802717

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The combination of differential scanning calorimetry (DSC) with charge coupled device (CCD) array-detected Raman spectroscopy for the in situ investigation of phase transitions is illustrated using ammonium nitrate as an example. This method aids unambiguous characterization of different phases by providing a simultaneous probe of thermodynamic and vibrational data. The availability of real-time vibrational data, including both the internal and external mode regions, is unique to array-detected Raman spectroscopy. The intensity changes of the symmetric stretching mode nu-1 of the nitrate ions and the lattice vibrations, that accompany the phase transition IV - II of ammonium nitrate, are rationalized in terms of the known crystal structure data.

引用

页码：2717 / 2720

页数：4

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