Inorganic Lanthanide Compounds with Complex Anions

Abstract

Mathias S. Wickleder was born in Bergen, Germany, in 1965. He received his Dr. rer. nat. degree at the University of Hannover under the direction of Professor G. Meyer in 1994. Thereafter he joined the group of Professor H. U. Gu ¨del, Bern, Switzerland, as a postdoctoral fellow for two years. In 2000 he finished his Habilitation at the Institute for Inorganic Chemistry in Cologne. His research interests include the structural chemistry and thermal behavior of rare-earth and transition-metal compounds with complex anions.

A Raman spectroscopic investigation of speciation in La2(SO4)3(aq)

“…The depolarisation ratio of the n 1 mode of CCl 4 In order to obtain spectra dened as I( n) which are independent of the excitation wavenumber n L , the measured Stokes intensity should be corrected for the scattering factor (n L À ( n)) 3 .…”

“…When counting methods are used, the measured count rates have to be corrected with the factor (n L À ( n)) 3 . The spectra were further corrected for the Bose-Einstein temperature factor, B ¼ [1 À exp(Àh nc/kT)] and the frequency factor, n, to give the so called reduced or R( n) spectrum.…”

“…25 With further dilution, the fraction of ion pairs diminishes signicantly and reaches zero at innite dilution. Therefore, dilute Na 2 SO 4 solutions shall be briey discussed and compared with La 2 (SO 4 ) 3 solutions. An overview Raman spectrum of a 0.101 mol L À1 Na 2 SO 4 (aq) from 100-1900 cm À1 is presented in Fig.…”

Synthesis of Rare Earth (Oxo)nitridocarbonates by Employment of Supercritical Carbon Dioxide, Single‐source Precursor, Solid‐State, and Ion Exchange Reactions

“…[22] Compared to the rapidly growing field of carbodiimide chemistry other rare earth (oxo)nitridocarbonates such as cyanates, dicyanamides or carbamates have been rarely mentioned in the literature. [23][24][25][26] To avoid formation of the thermodynamically favored binary oxides, carbides and nitrides a varied chemistry of rare earth (oxo)nitridocarbonates is strongly dependent on the development of inventive reaction strategies. Consequently, we have focused on low temperature approaches towards other rare earth (oxo)nitridocarbonates including carbamates, carbodiimides, cyanates, dicyanamides and tricyanomelaminates.…”

Hydrothermal Syntheses, Structures, and Characterizations of Two Lanthanide Sulfate Hydrates Materials, La2(SO4)3·H2O and Eu2(SO4)3·4H2O

“…Among many, lanthanide cations have been used widely, since they could create higher coordination numbers as well as easily adopt other metal polyhedra to generate the full range of topological diversity in the frameworks. [5][6][7] Meanwhile, one of the most effective synthetic methods for the preparations of these versatile framework materials is a hydrothermal (or solvothermal) reaction technique. [8][9][10][11][12][13] In this synthetic method, mineralizers such as acids or bases are introduced to increase the solubility and reactivity of the reagents.…”