Abstract
AbstractOn the basis of absorption spectroscopy data the temperature evolution of Cu2+ ion environment in the layered compound (C2H5NH3)2CuCl4 was studied within the temperature range of 4.5–310 K. For the detailed analysis of the experimental data the specially created program package Crys Tool 1.0 based on the quantum mechanical models first of all on the model of normalised spherical harmonics (NSH) was used. It has been found that the crystal structure in the low temperature phases contains tetragonally distorted octahedral metal–halogen complexes. The parameters of crystal field, normalised spherical harmonics, angular overlap model as well as the metal–halogen distances show anomalous behaviour at the points of phase transitions: Tc = 10 K and T4 = 232 K (for heating). The changes of these parameters observed around T5 = 65 K also may be related to previously unknown phase transition. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
