Search results

Sort By:

Limit search:

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

100%

Gałdecka E., Gałdecki Z., Amirkhanov V., Kern K., Legendziewicz J.

Acta Physica Polonica A

1996

vol. 90

issue 2

469-476

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.

Refine search results

1 Acta Physica Polonica A

1 1996

1 Amirkhanov V.

1 Gałdecka E.

1 Gałdecki Z.

1 Kern K.

1 Legendziewicz J.

Search results

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