Optical Properties and Structure of Ln(NCS)(Hmpa)_{4}-(SCN)_{2}- HgCl(SCN)

• Authors: E. Gałdecka , Z. Gałdecki , V. Amirkhanov , K. Kern , J. Legendziewicz
• Languages of publication: EN

Abstracts

EN

Praseodymium, neodymium and europium complexes of the formula Ln(NCS)(Hmpa)_{4}-(SCN)_{2}-HgCl(SCN) were synthesised from non-aqueous solutions. The structure of neodymium complexes was determined by X-ray diffraction. The crystals of the title compounds crystallise in the space group Cc, where lanthanide ions are coordinated to seven ligand groups: four of Hmpa molecules and three SCN¯ ions. The compounds were characterised by IR, luminescence, excitation and absorption spectra at 6, 77, and 298 K. Probabilities of electronic transitions for Pr^{3+} ion were examined at 6 K and at room temperatures. Vibronic components were observed and analysed on the basis of IR and Raman data. Asymmetric arrangement of Ln ions was found from X-ray analysis and its influence on optical properties of active centre was discussed.

Keywords

EN

78.20.Wc; 78.55.Hx; 78.20.Dj; 78.66.-w; 61.66.Fn

Discipline

• 61.66.Fn: Inorganic compounds
• 78.66.-w: Optical properties of specific thin films(for optical properties of low-dimensional, mesoscopic, and nanoscale materials, see 78.67.-n; for optical properties of surfaces, see 78.68.+m)
• 78.55.Hx: Other solid inorganic materials

• Journal: Acta Physica Polonica A
• Year: 1996
• Volume: 90
• Issue: 2
• Pages: 469-476

Dates

published

1996-08

Contributors

author

E. Gałdecka

• Institute for Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-950 Wrocław, Poland

author

Z. Gałdecki

• Institute of General and Ecological Chemistry, Technical University of Łódź, Żwirki 36, 90-924 Łódź, Poland

author

V. Amirkhanov

• Department of Chemistry, Kiev State University, Vladimirskaya 64, 252033 Kiev, Ukraine

author

K. Kern

• Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland

author

J. Legendziewicz

• Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland

Identifiers

DOI

10.12693/APhysPolA.90.469