- A novel sandwich polyoxometalate linked by mixed RE/TM interlayer: [Fe(phen)3]2[As2W18Fe2{Y(OH2)2}2O68]·6.5H2O
-
A novel sandwich polyoxometalate, [Fe(phen)3]2[As2W18Fe2{Y(H2O)2}2O68]·6. 5H2O 1, (phen = 1,10-phenanthroline), has been hydrothermally synthesized and characterized by elemental analyses, IR(25 ~ 650 °C), single-crystal X-ray diffraction, ESR spectroscopy and thermal analyses (TG-DTA). The crystallographic analysis reveals that the dimeric polyanion, [As2W18Fe2{Y(OH2)2}2O68]6-, are constructed from two [B-AsW9O34]9- fragments linked by two Y3+ ions and two Fe3+ ions. The ESR spectra exhibit that the high spin state and the low spin state of Fe(III) coexist in the title compound.
- Wang, Jingping,Wang, Wei,Niu, Jingyang
-
-
Read Online
- Re-investigation of ortho-metalated N,N-dialkylbenzylamine complexes of rare-earth metals. First structurally characterized arylates of neodymium and gadolinium Li[LnAr4]
-
The influence of the ether ligand in [LnCl3(solv)n], solv = THF, DME; n = 1-3 in reactions with ortho-lithiated dimethyl-benzylamine Li(dmba) has been studied. An improved protocol towards homoleptic tris-aryl complexes of the type [
- Petrov, Alex R.,Rufanov, Konstantin A.,Harms, Klaus,Sundermeyer, J?rg
-
-
Read Online
- New amino acid ligated yttrium hydroxy clusters
-
The synthesis of the four mixed pentanuclear yttrium hydroxy clusters [Y5(OH)5(α-AA)4(Ph2acac) 6] (α-AA = d-phenyl glycine, l-proline, l-valine, and l-tryptophan; Ph2acac = dibenzoylmethani
- Thielemann, Dominique T.,Fernandez, Ignacio,Roesky, Peter W.
-
-
Read Online
- Functionalised β-diketone assisted self-assembly of a hexanuclear yttrium oxo-hydroxo cluster
-
The reaction of YCl3·6H2O with ortho-hydroxydibenzoylmethane (HO-DBMH) in a 1:2 ratio, in methanol and in the presence of excess triethylamine as a base yielded a yellow precipitate which on crystallization from toluene or benzene /h
- Jami, Ananda Kumar,Kishore, Pilli V.V.N.,Baskar, Viswanathan
-
-
Read Online
- Facile solid-state chemical synthesis of novel ternary lanthanide complexes at room temperature
-
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.
- Yang, Xiao-Fei,Zhang, Rong-Xian,Yao, Fan,Ouyang, Wei-Meng
-
-
- Synthesis, structure, and antibacterial properties of ternary rare-earth complexes with o-methylbenzoic Acid and 1,10-phenanthroline1
-
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
- Chen,Wang,Yang,Zhao,Zhang,Wang,Zhao
-
p. 541 - 546
(2009/12/02)
-
- Preparation and properties of conductive amorphous mercury tetrathiolato polymers
-
The preparation and properties of two series of polymers based on mercury complexes of ethylenetetrathiolate (ett) and tetrathiafulvalenetetrathiolate ligand (ttftt) of stoichiometry [[(Hg- ett)Lnx](n)(Ln = La, Nd, Sm, Eu, x = 0.4; Ln = Er, Y, x = 0.3) and [(Hg- ttftt)Lny](n)(Ln = La, Nd, Sm, Eu, Er, Y, y = 0.2) are described. The insoluble amorphous polymer complexes have been characterized by elemental analysis, IR spectra, TG-DTA techniques and conductivity measurements. As compacted pellets these complexes behave as semi-conductors at 25 °C.
- Tang, Yu,Gan, Xinmin,Tan, Minyu
-
p. 587 - 589
(2007/10/03)
-
- The dehydration schemes of rare-earth chlorides
-
The dehydration schemes of LaCl3·7H2O, CeCl3·7H2O, PrCl3·7H2O, PrCl3·7H2O, EuCl3·6H2O, GdCl3·OH2O, HoCl3·6H2O, ErCl3·OH2O, TmCl3·6H2O, YbCl3·OH2O and YCl3·6H2O have been investigated by the isothermal fluidizedbed technique. This technique is based on the fact that reactions proceed at a close approach to equilibrium and thus give rise to constant reaction rate regimes at constant gas flow and temperature in the bed. By injecting a small portion of HCl(g) (~1%) into the gas stream, hydrolysis is avoided, and dehydration to the monohydrate is recorded by both thermal analysis of the preheated inlet gas and chemical analysis of samples taken from the bed. Based on the present results, together with previous results on NdCl3·OH2O, TbCl3·6H2O and DyCl3·6H2O, dehydration schemes of all rare-earth chlorides except LuCl3 and ScCl3 are suggested.
- Hong, Vu Van,Sundstroem, Johan
-
-
- SYNTHESIS AND SPECTRALINVESTIGATION ON RARE EARTH(III0 COMPLEXES OF AMIDO ACID LIGAND DERIVED FROM 2,4-DINITROPHENYLHYDRAZINE
-
Fourteen rare earth(III) complexes REL3.nH2O (where RE = Sc, n=5; Re = Z, La, Ce, Sm, Eu, Gd, Tb, Dy, Ho, Er, Zb, n = 6; RE = Pr, Nd, n =4; HL =1-(N-carboxymethyl-N-phenyl)amino-avetyl-2',4'-dinitrophenylhydrazine), have been synthesized and characterized
- Shen, Xu,Xie, Yuyuan
-
p. 499 - 510
(2008/10/09)
-