New mixed alkaline-earth nitridomolybdate(VI) nitride oxides with anion-ordered sub-structures.

New mixed alkaline-earth nitridomolybdate(VI) nitride oxides with anion-ordered sub-structures.

Dalton transactions (Cambridge, England : 2003) (2004-07-15)

Charles F Baker, Marten G Barker, Claire Wilson, Duncan H Gregory

ABSTRACT

New molybdenum(VI) nitride oxides were synthesised by the reaction of strontium nitride and calcium nitride with molybdenum foil at high temperature in sealed stainless steel crucibles. The reactions yielded single crystalline products determined by X-ray diffraction to form complex structures in the triclinic space group P1(no. 2). The mixed alkaline earth compounds with composition Ca38Sr13[MoN4]12N8O3 and Ca36Sr15[MoN4]12N8O3 are isostructural with the quaternary nitride oxides Sr51[WN4]12N8O3 and Ca51[WN4]12N8O3. The structures contain isolated [MoN4](6-) tetrahedra, partially disordered alkaline earth cations and an ordered sublattice of N(3-) and O(2-) anions. Oxide anions are coordinated only to the alkaline earth metals. The title compounds are the first mixed alkaline earth metal nitride oxides.

MATERIALS

Product Number

Brand

Product Description

GF55779317

Molybdenum, foil, 100x100mm, thickness 0.5mm, polished on both sides, 99.9%

GF58061280

Molybdenum, foil, 100x100mm, thickness 0.75mm, annealed, 99.9%

GF69690291

Molybdenum, foil, 150x150mm, thickness 0.25mm, annealed, 99.9%

GF43124228

Molybdenum, foil, 100x100mm, thickness 0.15mm, annealed, 99.9%

GF16892242

Molybdenum, foil, light tested, 25x25mm, thickness 0.004mm, 99.9%

GF40454805

Molybdenum, foil, light tested, 25x25mm, thickness 0.005mm, 99.9%

GF43249169

Molybdenum, foil, not light tested, 150x150mm, thickness 0.05mm, annealed, 99.9%

GF62073299

Molybdenum, foil, not light tested, 100x100mm, thickness 0.005mm, 99.9%

GF11002149

Molybdenum, foil, not light tested, 100x100mm, thickness 0.01mm, 99.9%

GF48963549

Molybdenum, foil, light tested, 50x50mm, thickness 0.006mm, 99.9%

GF84555681

Molybdenum, foil, light tested, 150x150mm, thickness 0.05mm, annealed, 99.9%

GF62673846

Molybdenum, foil, not light tested, 100x100mm, thickness 0.006mm, 99.9%

GF52864779

Molybdenum, foil, light tested, 25x25mm, thickness 0.01mm, 99.9%

GF04296618

Molybdenum, foil, light tested, 50x50mm, thickness 0.075mm, annealed, 99.9%

GF61121304

Molybdenum, foil, not light tested, 100x100mm, thickness 0.007mm, 99.9%

GF87605040

Molybdenum, foil, light tested, 25x25mm, thickness 0.009mm, 99.9%

GF96566721

Molybdenum, foil, not light tested, 100x100mm, thickness 0.004mm, 99.9%

GF37855974

Molybdenum, foil, light tested, 29x200mm, thickness 0.0712mm, annealed, 99.9%

GF31997289

Molybdenum, foil, light tested, 29x500mm, thickness 0.0712mm, annealed, 99.9%

GF03650543

Molybdenum, foil, light tested, 50x50mm, thickness 0.01mm, 99.9%

GF66431606

Molybdenum, foil, not light tested, 25x25mm, thickness 0.006mm, 99.9%

GF99660437

Molybdenum, foil, light tested, 29x600mm, thickness 0.0712mm, annealed, 99.9%

GF30193781

Molybdenum, foil, not light tested, 50x50mm, thickness 0.0125mm, 99.9%

GF60058942

Molybdenum, foil, 300x300mm, thickness 0.30mm, annealed, 99.9%

GF87175930

Molybdenum, foil, 100x100mm, thickness 0.20mm, annealed, 99.9%

GF88688985

Molybdenum, foil, 25x25mm, thickness 0.25mm, annealed, 99.9%

GF91334213

Molybdenum, foil, 100x100mm, thickness 2.0mm, annealed, 99.9%

GF46208842

Molybdenum, foil, 300x300mm, thickness 0.5mm, annealed, 99.9%

GF65357523

Molybdenum, foil, 100x100mm, thickness 0.25mm, annealed, 99.9%

GF96730678

Molybdenum, foil, 50x50mm, thickness 2.0mm, annealed, 99.9%