ChemInform Abstract: Solvothermal Syntheses, and Characterization of [Ln(en)4(SbSe4)] (Ln: Ce, Pr) and [Ln(en)4]SbSe4×0.5en (Ln: Eu, Gd, Er, Tm, Tb): The Effect of Lanthanide Contraction of the Crystal Structures of Lanthanide Selenidoantimonates(V).

ChemInform ◽  
2008 ◽  
Vol 39 (52) ◽  
Author(s):  
Dingxian Jia ◽  
Aimei Zhu ◽  
Qinyan Jin ◽  
Yong Zhang ◽  
Wenqing Jiang
Keyword(s):  
Crystal Structures ◽  
Lanthanide Contraction ◽  
Solvothermal Syntheses

Distorted chiolite crystal structures of α-Na5M3F14 (M=Cr,Fe,Ga) studied by X-ray powder diffraction

2003 ◽  
Vol 18 (2) ◽  
pp. 128-134 ◽  
Author(s):  
A. Le Bail ◽  
A.-M. Mercier
Keyword(s):  
Crystal Structures ◽  
Powder Diffraction ◽  
Room Temperature ◽  
Rietveld Refinements ◽  
Space Group ◽  
X Ray ◽  
Precise Characterization

The crystal structures of the chiolite-related room temperature phases α-Na5M3F14 (MIII=Cr,Fe,Ga) are determined. For all of them, the space group is P21/n, Z=2; a=10.5096(3) Å, b=7.2253(2) Å, c=7.2713(2) Å, β=90.6753(7)° (M=Cr); a=10.4342(7) Å, b=7.3418(6) Å, c=7.4023(6) Å, β=90.799(5)° (M=Fe), and a=10.4052(1) Å, b=7.2251(1) Å, c=7.2689(1), β=90.6640(4)° (M=Ga). Rietveld refinements produce final RF factors 0.036, 0.033, and 0.035, and RWP factors, 0.125, 0.116, and 0.096, for MIII=Cr, Fe, and Ga, respectively. The MF6 polyhedra in the defective isolated perovskite-like layers deviate very few from perfect octahedra. Subtle octahedra tiltings lead to the symmetry decrease from the P4/mnc space group adopted by the Na5Al3F14 chiolite aristotype to the P21/n space group adopted by the title series. Facile twinning precluded till now the precise characterization of these compounds.

Synthesis of phenyl substituted bisphosphonates and crystal structures and characterization of Cd complexes of (dichloromethylene)bisphosphonic acid phenyl and alkyl ester derivatives

CrystEngComm ◽  
2009 ◽  
Vol 11 (11) ◽  
pp. 2431 ◽  
Author(s):  
Jonna Jokiniemi ◽  
Jouko Vepsäläinen ◽  
Harri Nätkinniemi ◽  
Sirpa Peräniemi ◽  
Markku Ahlgrén
Keyword(s):  
Crystal Structures ◽  
Alkyl Ester ◽  
Bisphosphonic Acid

Syntheses, crystal structures, and characterization of As(III) and As(V) thioarsenates, [Mn2(phen)(AsIII2S5)]n and [Mn3(phen)3(AsvS4)2]n·nH2O

2009 ◽  
Vol 182 (4) ◽  
pp. 913-919 ◽  
Author(s):  
Xin Wang ◽  
Tian-Lu Sheng ◽  
Sheng-Min Hu ◽  
Rui-Biao Fu ◽  
Jian-Shan Chen ◽  
...  
Keyword(s):  
Crystal Structures

Solvothermal Syntheses and Crystal Structures of Two Thiostannates(IV) [M(tepa)]2(μ-Sn2S6) (M = Fe2+ and Co2+)

2010 ◽  
Vol 40 (6) ◽  
pp. 496-500 ◽  
Author(s):  
Yong Zhang ◽  
Jian Zhou ◽  
Ai-Bin Tang ◽  
Guo-Qing Bian ◽  
Jie Dai
Keyword(s):  
Crystal Structures ◽  
Solvothermal Syntheses

Solvothermal Syntheses and Characterization of Three Lanthanide Thioantimonates(V) with Mixed Ethylene Polyamines

2013 ◽  
Vol 68 (2) ◽  
pp. 133-137 ◽  
Author(s):  
Jian Zhou ◽  
Xing Liu ◽  
Feilong Hu
Keyword(s):  
Optical Absorption ◽  
Absorption Spectra ◽  
Trigonal Prism ◽  
Optical Absorption Spectra ◽  
Neutral Complex ◽  
Solvothermal Syntheses ◽  
Absorption Edges

Three new lanthanide thioantimonates(V) [Ln(en)(teta)(SbS4)] {Ln=Sm (1), Eu (2), Gd (3); en=ethylenediamine; teta=triethylenetetramine} have been solvothermally synthesized and structurally characterized. Compounds 1 - 3 are isostructural. The [SbS4]3- anion acting as bichelating ligand is bound to the [Ln(en)(teta)]3+ ion, resulting in a neutral complex [Ln(en)(teta)(SbS4)]. The central Ln3+ ion lies within an eight-coordinate environment forming a distorted bicapped trigonal prism LnN6S2. Although a few lanthanide thioantimonates have been reported to date, they only contain one type of ethylene polyamine. Compounds 1 - 3 are rare examples of lanthanide thioantimonates with mixed ethylene polyamine ligands. The absorption edges of 1:75 eV for 1 and 2:27 eV for 3 have been derived from optical absorption spectra.

Characterization of the extracted complexes of trivalent lanthanides with purified cyanex 301 in comparison with trivalent actinide complexes

2014 ◽  
Vol 43 (46) ◽  
pp. 17352-17357 ◽  
Author(s):  
Xihong He ◽  
Guoxin Tian ◽  
Jing Chen ◽  
Linfeng Rao
Keyword(s):  
Trivalent Lanthanides ◽  
Lanthanide Series ◽  
Lanthanide Contraction ◽  
Cyanex 301 ◽  
Trivalent Actinide

Dialkyldithiophosphinate forms different extracted Ln(iii) complexes across the lanthanide series not following the trend of lanthanide contraction.

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