ChemInform Abstract: Dimeric Complexes of Rare-Earth Substituted Keggin-Type Silicotungstates: Syntheses, Crystal Structure and Solid State Properties.

ChemInform ◽  
2014 ◽  
Vol 45 (44) ◽  
pp. no-no
Author(s):  
Mukesh Kumar Saini ◽  
Rakesh Gupta ◽  
Swati Parbhakar ◽  
Anil Kumar Mishra ◽  
Rashi Mathur ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Solid State ◽  
Keggin Type ◽  
Dimeric Complexes ◽  
Complexes Of Rare Earth

Dimeric complexes of rare-earth substituted Keggin-type silicotungstates: syntheses, crystal structure and solid state properties

RSC Advances ◽  
2014 ◽  
Vol 4 (48) ◽  
pp. 25357-25364 ◽  
Author(s):  
Mukesh Kumar Saini ◽  
Rakesh Gupta ◽  
Swati Parbhakar ◽  
Anil Kumar Mishra ◽  
Rashi Mathur ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Solid State ◽  
Nmr Spectroscopy ◽  
Analytical Techniques ◽  
Keggin Type ◽  
Dimeric Complexes ◽  
Complexes Of Rare Earth ◽  
C Nmr

A series of rare-earth substituted dimeric complexes of Keggin-type silicotungstates were synthesized and characterized using various analytical techniques like SCXD, photoluminescence, 1H and 13C NMR spectroscopy.

scholarly journals Expanding Family of Litharge-Derived Sulfate Minerals and Synthetic Compounds: Preparation and Crystal Structures of [Bi2CuO3]SO4 and [Ln2O2]SO4 (Ln = Dy and Ho)

Minerals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 887
Author(s):  
Oleg Siidra ◽  
Dmitri Charkin ◽  
Igor Plokhikh ◽  
Evgeny Nazarchuk ◽  
Astrid Holzheid ◽  
...  
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
Rare Earth ◽  
High Temperature ◽  
Solid State ◽  
Structure Type ◽  
Structural Studies ◽  
Synthetic Compounds ◽  
High Pressure High Temperature ◽  
In Cis

During the last decades, layered structures have attracted particular and increasing interest due to the multitude of outstanding properties exhibited by their representatives. Particularly common among their archetypes, with a significant number of mineral and synthetic species structural derivatives, is that of litharge. In the current paper, we report the structural studies of two later rare-earth oxysulfates, [Ln2O2]SO4 (Ln = Dy, Ho), which belong indeed to the grandreefite family, and a novel compound [Bi2CuO3]SO4, which belongs to a new structure type and demonstrates the second example of Cu2+ incorporation into litharge-type slabs. Crystals of [Bi2CuO3]SO4 were obtained under high-pressure/high-temperature (HP/HT) conditions, whereas polycrystalline samples of [Ln2O2]SO4 (Ln = Dy, Ho) compounds were prepared via an exchange solid-state reaction. The crystal structure of [Bi2CuO3]SO4 is based on alternation of continuous [Bi2CuO3]2+ layers of edge-sharing OBi2Cu2 and OBi3Cu tetrahedra and sheets of sulfate groups. Cu2+ cations are in cis position in O5Bi2Cu2 and O6Bi2Cu2 oxocentered tetrahedra in litharge slab. The crystal structure of [Ln2O2]SO4 (Ln = Dy, Ho) is completely analogous to those of grandreefite and oxysulfates of La, Sm, Eu, and Bi.

Synthesis, Crystal Structure and Characterization of Two Rare Earth Substituted Keggin-Type Germanotungstates

2008 ◽  
Vol 26 (7) ◽  
pp. 1239-1243 ◽  
Author(s):  
Jing-Ping WANG ◽  
Qing-Xia YAN ◽  
Xiao-Di DU ◽  
Jing-Yang NIU
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Keggin Type

Structure and Ionic Conductivity of Ln2Zr2O7-Type Rare Earth Zirconates

2007 ◽  
Vol 336-338 ◽  
pp. 420-423 ◽  
Author(s):  
Rui Zhang ◽  
Qiang Xu ◽  
Wei Pan ◽  
Chun Lei Wan ◽  
Long Hao Qi ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Solid State ◽  
Ionic Conductivity ◽  
Single Phase ◽  
Complex Impedance ◽  
Pyrochlore Structure ◽  
Fluorite Structure ◽  
X Ray Diffraction ◽  
X Ray

Three rare earth zirconates (Sm2Zr2O7, Gd2Zr2O7 and Er2Zr2O7) were prepared by solid state reaction. The crystal structure and ionic conductivity of these zirconates were characterized by X-ray diffraction (XRD) and complex impedance spectroscopy. The results show that Sm2Zr2O7 exhibits single-phase pyrochlore structure and Er2Zr2O7 exhibits single-phase fluorite structure, while Gd2Zr2O7 has pyrochlore and fluorite structure. Among three zirconates, the ionic conductivity of Sm2Zr2O7 is highest, while that of Er2Zr2O7 is lowest.

ChemInform Abstract: Synthesis, Crystal Structure and Characterization of Two Rare Earth Substituted Keggin-Type Germanotungstates.

ChemInform ◽  
2008 ◽  
Vol 39 (43) ◽  
Author(s):  
Jing-Ping Wang ◽  
Qing-Xia Yan ◽  
Xiao-Di Du ◽  
Jing-Yang Niu
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Keggin Type

scholarly journals DFT calculations in the assignment of solid-state NMR and crystal structure elucidation of a lanthanum(iii) complex with dithiocarbamate and phenanthroline

2016 ◽  
Vol 45 (48) ◽  
pp. 19473-19484 ◽  
Author(s):  
Vasantha Gowda ◽  
Risto S. Laitinen ◽  
Ville-Veikko Telkki ◽  
Anna-Carin Larsson ◽  
Oleg N. Antzutkin ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Solid State ◽  
Nmr Spectroscopy ◽  
Dft Calculations ◽  
Single Crystal ◽  
Solid State Nmr ◽  
Structure Elucidation ◽  
Single Crystal Xrd ◽  
Dft Modelling

Structure of a novel rare-earth lanthanum(iii) complex resolved by a combination of DFT modelling, NMR spectroscopy, and single crystal XRD.

Crystal structure and magnetic and photocatalytic properties of a new ternary rare-earth mixed chalcogenide, Dy4S4Te3

2014 ◽  
Vol 2 (48) ◽  
pp. 20621-20628 ◽  
Author(s):  
Sheng-Ping Guo ◽  
Guo-Cong Guo
Keyword(s):  
Crystal Structure ◽  
Photocatalytic Activity ◽  
Rare Earth ◽  
High Temperature ◽  
Solid State ◽  
Rhodamine B ◽  
Solid State Reaction ◽  
Energy Gap ◽  
Halogen Lamp ◽  
Polycrystalline Powder

New mixed-chalcogenide Dy4S4Te3 was synthesized by a facile high-temperature solid-state reaction based on energy gap engineering, polycrystalline powder shows photocatalytic activity for the decomposition of rhodamine B under halogen lamp irradiation.

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