Polarized IR and Raman spectra of zoisite: insights into OH-dipole orientation and the luminescence
Number of Authors: 5
2016 (English)In: European journal of mineralogy, ISSN 0935-1221, E-ISSN 1617-4011, Vol. 38, no 3, 537-543 p.Article in journal (Refereed) Published
The OH-dipole in the mineral zoisite has been a topic of discussion regarding its general orientation and vibrational modes. We present new polarized single-crystal Raman and infrared spectra and verify the orientation of the OH-dipole along the crystallographic c axis with a slight deviation towards the crystallographic a axis. Polarized Raman and FTIR spectra confirm that the OH band at 3150 cm(-1) corresponds to the O(10)-H center dot center dot center dot O(4) hydrogen bridge and exclude a previously suggested second hydrogen bridge O(10)-H center dot center dot center dot O(2). Further, Raman spectra provide insights on the luminescence of zoisite and the interference of luminescence peaks in the OH-region.
Place, publisher, year, edition, pages
2016. Vol. 38, no 3, 537-543 p.
zoisite, OH-dipole, Raman spectroscopy, FTIR, luminescence
Earth and Related Environmental Sciences Chemical Sciences
IdentifiersURN: urn:nbn:se:su:diva-136219DOI: 10.1127/ejm/2016/0028-2528ISI: 000385334200003OAI: oai:DiVA.org:su-136219DiVA: diva2:1057273
8th European Conference on Mineralogy and Spectroscopy (ECMS), Rome, Italy, September 9-11, 2015