Comments on papers reporting IR-spectra and other data of alleged L-alanine alaninium nitrate and L-alanine sodium nitrate crystals
- Author(s)
- Michel Fleck, A.M. Petrosyan
- Abstract
We argue that the IR- and Raman-spectra of L-alanine alaninium nitrate given in Investigation on the growth, optical behaviour and factor group of an NLO crystal: L-Alanine Alaninium nitrate by Aravindan et al., Cryst. Res. Technol. 42, 1097 (2007), actually concern L-Alanine. Correspondingly, the data presented in A comparative study on the growth and characterization of nonlinear optical amino acid crystals: L-Alanine (LA) and L-alanine alaninium nitrate (LAAN) by Aravindan et al., Spectrochim. Acta A 71, 297 (2008), seems to be erroneous, as is Synthesis, Growth, and Characterization of a New Semiorganic Nonlinear Optical Crystal: L-Alanine Sodium Nitrate (LASN), Sethuraman, et al., Cryst. Growth Des. 8, 1863 (2008). In these papers properties and data were reported for L-Alanine compounds that actually are L-Alanine crystals and, in addition, unit cell parameters were given that seem to have been copied from other papers.
- Organisation(s)
- Department of Mineralogy and Crystallography
- External organisation(s)
- National Academy of Sciences of the Republic of Armenia
- Journal
- Crystal Research and Technology: journal of experimental and industrial crystallography
- Volume
- 44
- Pages
- 769-772
- No. of pages
- 4
- ISSN
- 0232-1300
- Publication date
- 2009
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 105113 Crystallography, 1030 Physics, Astronomy, 105116 Mineralogy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/d1eb54d1-8220-4e7e-b690-f8b9e14e5492