Crystal structure and magnetic properties of a new molybdenophosphate: AgMo/sub 5/P/sub 8/O/sub 33/

Journal Article · Sun Nov 01 00:00:00 EST 1987 · J. Solid State Chem.; (United States)

DOI:https://doi.org/10.1016/0022-4596(87)90151-4· OSTI ID:5573802

Lii, K H; Johnston, D C; Goshorn, D P; Haushalter, R C

The crystal structure of AgMo/sub 5/P/sub 8/O/sub 33/ has been determined from single-crystal X-ray diffraction data. AgMo/sub 5/P/sub 8/O/sub 33/ crystallizes in the monoclinic space group I2/a (number15) with a = 23.050(8), b = 4.831(4), c = 22.935(9) A, ..beta.. = 90.42(5)/sup 0/, V = 2554(4) A/sup 3/, Z = 4, R = 0.086 (R/sub w/ = 0.089) for 879 reflections with F/sub o//sup 2/ > 3.0sigma(F/sub o//sup 2/). The structure consists of large tunnels where the silver atoms are located. The framework is built up from MoO/sub 6/ octahedra and P/sub 2/)O/sub 7/ groups. The connectivity formula for AgMo/sub 5/P/sub 8/O/sub 33/ is Ag(MoO/sub 1/1/O/sub 4/2/)(MoO/sub 1/1/O/sub 5/2/)/sub 4/(P/sub 2/O/sub 1/1/O/sub 6/2/)/sub 4/. Powder magnetic susceptibility data confirm the presence of Mo/sup 5 +/ (d/sup 1/) ions with spin 1/2, and a featureless antiferromagnetic ordering appears to occur below 2.5 K. Magnetization isotherms at 1.3 and 4.2 K in magnetic fields up to 65 kG are reported. The lithium, sodium, calcium, strontium, barium, and lead analogs of AgMo/sub 5/P/sub 8/O/sub 33/ were also prepared.

• Research Organization: Exxon Research and Engineering Company, Annadale, NJ
• OSTI ID: 5573802
• Journal Information: J. Solid State Chem.; (United States), Vol. 71:1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
CRYSTAL GROWTH
CALCIUM OXIDES
LEAD OXIDES
LITHIUM OXIDES
CRYSTAL STRUCTURE
MAGNETIC SUSCEPTIBILITY
MOLYBDATES
PHOSPHATES
SILVER OXIDES
SODIUM OXIDES
STRONTIUM OXIDES
LATTICE PARAMETERS
MONOCLINIC LATTICES
MONOCRYSTALS
X-RAY DIFFRACTION
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTALS
DIFFRACTION
LEAD COMPOUNDS
LITHIUM COMPOUNDS
MAGNETIC PROPERTIES
MOLYBDENUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
REFRACTORY METAL COMPOUNDS
SCATTERING
SILVER COMPOUNDS
SODIUM COMPOUNDS
STRONTIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies
360204 - Ceramics
Cermets
& Refractories- Physical Properties
360201 - Ceramics
Cermets
& Refractories- Preparation & Fabrication