20211-76-1Relevant academic research and scientific papers
Solubility in the LaCl3-LnCl3-HCl-H2O (Ln = Pr, Nd) systems at 25°C
Knyazeva,Skiba,Serba
, p. 592 - 595 (2012/07/14)
The solubility in the quaternary water-salt systems LaCl 3-NdCl3-HCl-H2O (1) and LaCl3- PrCl3-HCl-H2O (2) at 25°C was studied in the section of 40 wt % hydrochloric acid, a system with a eutonic discontinuity. The composition at the point of discontinuity for the eutonic solution is the following. In system 1: 4.67 wt % LaCl3 · 7H2O, 0.37 wt % PrCl3 · 7H2O, 37.98 wt % HCl, and 56.98 wt % H2O; in system 2: 4.37 wt % LaCl3 · 7H 2O, 0.93 wt % NdCl3 · 6H2O, 37.88 wt % HCl, and 56.82 wt % H2O.
Facile solid-state chemical synthesis of novel ternary lanthanide complexes at room temperature
Yang, Xiao-Fei,Zhang, Rong-Xian,Yao, Fan,Ouyang, Wei-Meng
, p. 37 - 41 (2012/04/11)
This paper reports a facile one-step synthesis of two ternary lanthanide complexes via room temperature solid-state reactions of lanthanide chloride hydrates with two ligands, potassium sorbate (PS), and 8-hydroxyquinoline (8-hq). The structural features, composition, and the morphologies of two complexes are characterized by elemental analysis, UV-Vis, FT-IR, XRD, SEM, and EDX. The thermal property of two ternary lanthanide complexes was also investigated. UV-Vis and FT-IR results confirm the coordination of lanthanide ion with two ligands. XRD results show that signals of complexes are not from reactants, and are believed to originate from the corresponding ternary lanthanide complex.
Synthesis, structure, thermal and luminescent behaviors of lanthanide-Pyridine-3,5-dicarboxylate frameworks series
?yszczek, Renata
, p. 120 - 127 (2011/01/08)
The isostructural series of lanthanide pyridine-3,5-dicarboxylates of the formula [Ln2pdc3(dmf)2]·(dmf) x(H2O)y where Ln are lanthanides from La(III) to Lu(III); pdc2--C5/s
Dehydration and oxidation in the preparation of Ce-doped LaCl3 scintillation crystals
Ren, Guohao,Chen, Xiaofeng,Pei, Yu,Li, Huanying,Xu, Hongxiang
, p. 120 - 123 (2009/04/13)
Ce3+ activated LaCl3 is a promising scintillation crystal for radiation detection. The starting raw materials used to grow LaCl3 crystals are rather hygroscopic and XRD proves that LaCl3·7H2O and LaCl
Synthesis, structure, and antibacterial properties of ternary rare-earth complexes with o-methylbenzoic Acid and 1,10-phenanthroline1
Chen,Wang,Yang,Zhao,Zhang,Wang,Zhao
, p. 541 - 546 (2009/12/02)
Ternary rare-earth complexes with o-methylbenzoic acid (o-MBA) and 1,10-phenanthroline (Phen) Ln2(o-MBA)6(Phen)2 ? nH2O(n = 0, 1) (Ln = La, Pr, Y, Yb) were synthesized and characterized by elemental analysis, IR
Thermochemical properties of the rare earth complexes with pyromellitic acid
Wang, Lijun,Liu, Fei,Yang, Xuwu,Wang, Xiaoyan,Liu, Ruiping,Zhao, Sa,Chen, Sanping
, p. 43 - 46 (2009/05/30)
Fourteen rare earth complexes with pyromellitic acid were synthesized and characterized by means of chemical and elemental analysis, and TG-DTG. The constant-volume combustion energies of complexes, ΔcU, were measured by a precise rotating-bomb
Poly[[tetra-aqua-tris(μ3-2,2-dimethyl-malonato) dilanthanum(III)] mono-hydrate]
Guo, Ming-Lin,Guo, Chen-Hu
, p. m195-m197 (2009/08/08)
In the title complex, {[La2(C5H6O4)3(H2O)4]·H2O} n , the La atoms are connected by bridging O atoms from carboxyl-ate groups to build, through centres of inversion, two-dimensional layers parallel to the ac plane containing deca-nuclear 20-membered rings.
Synthesis, crystal structures, and luminescent properties of two types of lanthanide phosphonates
Guo, Ya-Qin,Tang, Si-Fu,Yang, Bing-Ping,Mao, Jiang-Gao
, p. 2713 - 2718 (2009/02/07)
Hydrothermal reactions of different lanthanide(III) salts with an amino-diphosphonate ligand (H4L= C6H5CH 2N(CH2PO3H2)2) led to two series of lanthanide phosphonates, namely, Ln(H2L)(H3L) (Ln = La, 1; Pr, 2; Nd, 3; Sm, 4; Eu, 5; Gd, 6; Tb, 7). Compounds 1-5 feature a one-dimensional (1D) chain structure in which dimers of two edge-sharing LnO8 polyhedra are interconnected by bridging phosphonate groups, such 1D arrays are further interlinked via strong hydrogen bonds between non-coordinated phosphonate oxygen atoms into a two-dimensional (2D) layer with the phenyl groups of the ligands orientated toward the interlayer space. Compounds 6 and 7 also show a different ID array in which the LnO6 octahedra are bridged by phosphonate groups via corner-sharing, such chains are also further interlinked by hydrogen bonds into a 2D supramolecular layer. Compounds 5 and 7 emit red and green light with a lifetime of 2.1 and 3.7ms, respectively.
Synthesis and structural characterization of new lanthanide coordination polymers with nitrilotriacetic acid
Huang, Liang,Zhang, Li-Ping,Jin, Lin-Pei
, p. 121 - 126 (2007/10/03)
Reported herein are the hydrothermal synthesis and crystal structures of four lanthanide coordination polymers with nitrilotriacetic acid (H 3NTA) [Ln(NTA)(H2O)]n (Ln=La, 1; Pr, 2; Nd, 3; Eu, 4). Despite similar syntheses, compounds 1 to 4 show transformation in coordination mode of NTA and coordination number of Ln3+ duo to lanthanide contraction. The Ln(III) ions in 1 and 2 are nine-coordinated and connected through octadentate bridging ligands (NTA) to form a three-dimensional network. The Ln(III) ions in 3 and 4 are eight-coordinated and bridged by heptadentate bridging ligands (NTA) to form an extended two-dimensional layer structure, which further construct a three-dimensional supramolecular structure via coordination bond and three-centered hydrogen bonding between adjacent layers.
Hydrothermal synthesis and structural characterization of three novel lanthanide coordination polymers with fumarate and 1,10-phenanthroline
Huang, Liang,Zhang, Li-Ping
, p. 249 - 253 (2007/10/03)
Three novel lanthanide complexes, [Ln2(fum)3(phen) 2(H2O)2]n (Ln=La, 1; Pr, 2. fum=fumarate dianion; phen=1,10-phenanthroline) and [Er2(fum) 3(phen)2]n
