𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthesis and Structure of Anhydrous Rare-Earth Perchlorates M(ClO4)3 (M = La, Ce–Er, Y): Derivatives of the UCl3 Type of Structure

✍ Scribed by Mathias S. Wickleder; Wolfgang Schäfer

Publisher
John Wiley and Sons
Year
1999
Tongue
German
Weight
127 KB
Volume
625
Category
Article
ISSN
0372-7874

No coin nor oath required. For personal study only.

✦ Synopsis

Anhydrous perchlorates M(ClO 4 ) 3 (M = La, Ce±Er, Y) were obtained by drying the products formed in the reaction of the respective lanthanide oxide with perchloric acid (70%). According to X-ray powder investigations, they all crystallize with the hexagonal space group P6 3 /m isostructural with the hydrogensulfates of the lighter lanthanides. For the example of Pr(ClO 4 ) 3 a full profile Rietveld refinement based on X-ray powder data has been undertaken successfully (a = 933.61(3) pm, c = 584.88(2) pm; R p = 0.207, R Bragg = 0.068). The structure of Er(ClO 4 ) 3 was refined from neutron diffraction data (a = 919.7(1) pm, c = 559.8(1) pm; R p = 0.190, R Bragg = 0.106). High temperature X-ray powder investigations show that thermal expansion occurs mainly in the (001) plane while the c axis remains nearly constant.

📜 SIMILAR VOLUMES

ChemInform Abstract: Synthesis, Crystal
ChemInform Abstract: Synthesis, Crystal Structure, and Thermal Behavior of the Rare Earth Sulfates (H5O2)M(SO4)2 (M: Ho, Er, Y).
✍ M. S. WICKLEDER 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 32 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

ChemInform Abstract: Ternary Rare-Earth
ChemInform Abstract: Ternary Rare-Earth Selenides with the U3ScS6 Structure Type: Synthesis, Characterization, and Some Magnetic Properties of Ln3MSe6 (Ln: Sm, Gd; M: In, Cr) and Tb3CrSe6.
✍ Olivier Tougait; James A. Ibers 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 33 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v