Simple and complex halides

Spectroscopic investigation and simulation of the crystal field effect as well as paramagnetic behavior of K2La1−xPrxCl5 ternary chlorides

“…The crystal structure of the related fluoride phase with the same stoichiometry, K 2 RF 5 , has been subject to much debate since up to date several different structures-partly depending on the rare earth cation-have been proposed [19]. However, according to the seemingly most reliable investigation [20], it is clear that the smaller rare earth fluorides (beyond R = Pr) crystallize in the same type of structure as the corresponding chlorides.…”

Expanding the LnZ3/Alkali‐Metal Reduction System to Organometallic and Heteroleptic Precursors: Formation of Dinitrogen Derivatives of Lanthanum

“…[1] Molecular divalent chemistry has not been reported for these elements to date. [6] Reduction of lanthanide salts by alkali metals dates back to Wöhler, [7] but has generally been used only to make elemental metals or the common divalent lanthanides, Eu II , Yb II , and Sm II . [8] The other alkali-metal reductions of trivalent lanthanide ions involving dinitrogen and arene substrates have also been interpreted in terms of divalent states.…”

The First Lanthanide Telluride-Bromide: La3Te4Br, a Valence Compound

“…Rare-earth element clusters with endohedral atoms of both main-group and transition elements are a steadily growing class of compounds which must be seen in connection with the cluster chemistry of the early transition elements, especially groups 4 through 6 [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. The configuration crossover 4f n 5d 0 ↔ 4f n−1 5d 1 of some of the lanthanides allows for bonding interactions between, predominantly, the endohedral atom Z and the cluster atoms R [5,[16][17][18][19].…”