Crystal structure of Yb/sub 5/ErCl/sub 13/ and Yb/sub 6/Cl/sub 13/

Journal Article · Mon Mar 01 00:00:00 EST 1982 · Inorg. Chem.; (United States)

OSTI ID:5658693

Lueke, H; Eick, H A

The crystal structure of Yb/sub 5/ErCl/sub 13/, determined by a single-crystal structural analysis, has been refined in monoclinic space groups C2/c and I2/a (No. 15). Cell data (space group C2/c) are a = 41.44 (2) A, b = 6.537 (5) A, c = 7.004 (5) A, and ..beta.. = 98.48 (10)/sup 0/, with Z = 4. Three-dimensional intensity data were collected by a Picker automated four-cycle diffractometer with Zr-filtered Mo K..cap alpha.. radiation in the theta-2theta scan mode. Refinement was effected by full-matrix least-squares calculation and after absorption and extinction yielded at convergence R = 0.032 and R/sub w/ = 0.039 for the 1012 reflections with F/sup 2/ > 3sigma/sub F/sup 2// of the 1671 observed reflections. Since the location of the Er/sup 3 +/ atoms could not be determined uniquely, the true symmetry is assumed lower than that reported. Structural and cell data for isostructural Yb/sub 6/Cl/sub 13/ for which only twinned crystals could be isolated are also reported. These two compounds are ascribed to a series of Vernier phases of the general formula M/sub n/X/sub 2n+1/ and represent the n = 6 member. 6 figures, 4 tables.

• Research Organization: Michigan State Univ., Lansing
• OSTI ID: 5658693
• Journal Information: Inorg. Chem.; (United States), Vol. 21:3
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ERBIUM CHLORIDES
CRYSTAL STRUCTURE
YTTRIUM CHLORIDES
CRYSTALLOGRAPHY
DIFFRACTION METHODS
EXPERIMENTAL DATA
INTERATOMIC DISTANCES
LATTICE PARAMETERS
LEAST SQUARE FIT
MOLECULAR STRUCTURE
MONOCLINIC LATTICES
ORTHORHOMBIC LATTICES
PRECESSION
ROTATING CRYSTAL METHOD
SPACE GROUPS
STRUCTURAL CHEMICAL ANALYSIS
CHLORIDES
CHLORINE COMPOUNDS
CRYSTAL LATTICES
DATA
DISTANCE
ERBIUM COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
MAXIMUM-LIKELIHOOD FIT
NUMERICAL DATA
NUMERICAL SOLUTION
RARE EARTH COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
400201* - Chemical & Physicochemical Properties