Comments on papers reporting IR-spectra and other data of alleged L-alanine alaninium nitrate and L-alanine sodium nitrate crystals

Autor(en)

Michel Fleck, A.M. Petrosyan

Abstrakt

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(en)

Institut für Mineralogie und Kristallographie

Externe Organisation(en)

National Academy of Sciences of the Republic of Armenia

Journal

Crystal Research and Technology: journal of experimental and industrial crystallography

Band

44

Seiten

769-772

Anzahl der Seiten

4

ISSN

0232-1300

Publikationsdatum

2009

Peer-reviewed

Ja

ÖFOS 2012

105113 Kristallographie, 1030 Physik, Astronomie, 105116 Mineralogie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/d1eb54d1-8220-4e7e-b690-f8b9e14e5492