Volatile Compounds of Lanthanides

Mechanochemical Syntheses of Ln(hfac)3(H2O)x (Ln = La-Sm, Tb): Isolation of 10-, 9-, and 8-Coordinate Ln(hfac)n Complexes

“…Crystals of the 10-coordinate pentakis-hfac complexes of the form Na 2 Ln­(hfac) 5 ·3H 2 O·Et 2 O were obtained for La-Nd. Previously, 10-coordinate complexes of La-Nd have been reported using pyridinium hfac, and a Cs 2 La­(hfac) 5 complex has also been reported. , Two crystals, Na 2 Ce­(hfac) 5 ·3H 2 O·Et 2 O and Na 2 Pr­(hfac) 5 ·3H 2 O·Et 2 O (CCDC no. 2181477), had sufficient data quality to yield fully refined structures.…”

Sublimable Single Ion Magnets Based on Lanthanoid Quinolinate Complexes: The Role of Intermolecular Interactions on Their Thermal Stability

“…The difference in sublimability in these two nearisostructural complexes might not be unambiguously traced back to differences in the crystal packing, since the sublimation of the crystals coincides with those of the amorphous samples. 53 Presumably, the different behavior is related to the different interactions that are possible in chlorinatediodinated derivatives compared with dibrominated derivatives, due to the different polarizabilities and electronegativities of the different halogens. In any case, the behavior is consistent with available experimental data as presented above: before crystallization, 1(Dy) is much more crystalline than 2(Dy), and after crystallization, 1-DMF(Dy) presents a higher number of hydrogen bonds compared with 2-DMF(Dy).…”

“…Moreover, the correct atomic relation between the lanthanoid and both Cl and I was obtained by electron probe microanalysis, Dy: Cl: I = 1: 4: 4 (Table S14). Thus, upon sublimation, the recrystallized phase ( 2 The difference in sublimability in these two nearisostructural complexes might not be unambiguously traced back to differences in the crystal packing, since the sublimation of the crystals coincide with those of the amorphous samples 53 . Presumably, the different behavior is related to the different interactions that are possible in chlorinaded-iodinated derivatives compared with dibrominated derivatives, due to the different polarizabilities and electronegativities of the different halogens.…”

Sublimable chloroquinolinate lanthanoid single-ion magnets deposited on ferromagnetic electrodes

“…6a and b ). The same happens for the N K-edge of the pristine molecule that shows three characteristic peaks corresponding to the transitions π (C1) and σ (C2 and C3), 42 which are maintained in the bilayer. In contrast, the C K-edge of the pristine molecule (in orange in Fig.…”

“…We should point out the fact that, although rare, other thermally stable sublimable ionic molecules based on mononuclear lanthanoid complexes are known. Among them, the tetrakis–diketonato complexes of the type M[Ln(dik) 4 ] where M = Cs, Y and La 42 – 44 stand out, since some of these molecules have been used in the fabrication of nano-optical devices by thermal techniques under high vacuum conditions. 45 These compounds are non-hygroscopic and air-stable and can be sublimed on substrates maintaining their molecular structure.…”