Publications in Scientific Journals:
H. Grothe, H. Tizek, I. Ortega:
"Metastable Nitric Acid Hydrates - Possible Constituents of Polar Stratospheric Clouds?";
Faraday Discussions,
137
(2008),
223
- 234.
English abstract:
Crystallization kinetics of the metastable modifications of Nitric Acid Dihydrate (NAD) was investigated by time-dependent X-Ray Diffraction (XRD) measurements. Kinetic conversion curves were evaluated adopting the Avrami model. The growth and morphology of the respective crystallites and particles were monitored in situ on the cryo-stage of an Environmental Scanning Electron Microscope (ESEM) under a partial pressure of nitrogen gas (0.5 Torr, 67 Pa). The morphologies were used to adapt the InfraRed (IR) extinction spectra by T-matrix calculation using respective optical indices of NAD. The results show a significant dependence of the band shapes on different morphologies
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1039/b702343j
Created from the Publication Database of the Vienna University of Technology.