ChemInform Abstract: A Comparative Study of Two New Structure Types. Synthesis and Structural and Electronic Characterization of K(Ln)P2Se6 (Ln: Y, La, Ce, Pr, Gd).

✍ Scribed by J. H. CHEN; P. K. DORHOUT; J. E. OSTENSON

• Publisher: John Wiley and Sons
• Year: 2010
• Weight: 30 KB
• Volume: 28
• Category: Article
• ISSN: 0931-7597
• DOI: 10.1002/chin.199704002

✦ Synopsis

1997 structure structure (solids and liquids) D 2000 04 -002 A Comparative Study of Two New Structure Types. Synthesis and Structural and Electronic Characterization of K(Ln)P2Se6 (Ln: Y, La, Ce, Pr, Gd).

-The structure of the title compounds (V) varies with the size of the lanthanoid cation. The compounds with Ln: Y and Gd crystallize in the orthorhombic space group P212121 with Z = 4 (single crystal XRD data for KYP2Se6). In the layered structure the Y atoms are bound to four distinct (P2Se6)4-units. Each anion possesses a Se atom that is not bound to Y and points out into the interlayer spacing where the K+ ions are located. The compounds of the larger lanthanoids (La, Ce, Pr) crystallize in a monoclinic polytype, space group P21/c. - (CHEN,