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

GF68352330

Molybdenum, foil, 6mm disks, thickness 0.75mm, annealed, 99.9%

GF34372212

Molybdenum, foil, 8mm disks, thickness 0.25mm, annealed, 99.9%

GF25426335

Molybdenum, foil, 8mm disks, thickness 0.30mm, annealed, 99.9%

GF30128576

Molybdenum, foil, 8mm disks, thickness 0.006mm, 99.9%

GF88422127

Molybdenum, foil, 8mm disks, thickness 0.015mm, annealed, 99.9%

GF36201338

Molybdenum, foil, light tested, 100x100mm, thickness 0.05mm, annealed, 99.9%

GF42696366

Molybdenum, foil, 8mm disks, thickness 0.5mm, annealed, 99.9%

GF37076520

Molybdenum, foil, light tested, 100x100mm, thickness 0.075mm, annealed, 99.9%

GF06158729

Molybdenum, foil, 8mm disks, thickness 0.75mm, annealed, 99.9%

GF40281803

Molybdenum, foil, 8mm disks, thickness 0.008mm, 99.9%

GF61230248

Molybdenum, foil, 8mm disks, thickness 0.05mm, annealed, 99.9%

GF10280922

Molybdenum, foil, light tested, 100x100mm, thickness 0.008mm, 99.9%

GF38800582

Molybdenum, foil, 8mm disks, thickness 0.009mm, 99.9%

GF90335066

Molybdenum, foil, light tested, 100x100mm, thickness 0.0125mm, 99.9%

GF95206428

Molybdenum, foil, 8mm disks, thickness 0.125mm, annealed, 99.9%

GF42672427

Molybdenum, foil, not light tested, 25x25mm, thickness 0.003mm, 99.9%

GF53293833

Molybdenum, foil, light tested, 50x50mm, thickness 0.05mm, annealed, 99.9%

GF80815776

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

GF40853820

Molybdenum, foil, light tested, 60x60mm, thickness 0.015mm, as rolled, 99.9%

GF92302848

Molybdenum, foil, light tested, 29x100mm, thickness 0.0712mm, annealed, 99.9%

GF49206854

Molybdenum, foil, not light tested, 100x100mm, thickness 0.008mm, 99.9%

GF20756572

Molybdenum, foil, light tested, 300x300mm, thickness 0.075mm, annealed, 99.9%

GF12407587

Molybdenum, foil, light tested, 50x50mm, thickness 0.0125mm, 99.9%

GF26506515

Molybdenum, foil, not light tested, 25x25mm, thickness 0.0025mm, 99.9%

GF77961415

Molybdenum, foil, not light tested, 100x100mm, thickness 0.0125mm, 99.9%

GF23148929

Molybdenum, foil, light tested, 30x30mm, thickness 0.015mm, as rolled, 99.9%

GF57334169

Molybdenum, foil, not light tested, 25x25mm, thickness 0.002mm, 99.9%

GF48792628

Molybdenum, foil, not light tested, 50x50mm, thickness 0.005mm, 99.9%

GF94661163

Molybdenum, foil, light tested, 50x50mm, thickness 0.007mm, 99.9%

GF86699558

Molybdenum, foil, light tested, 25x25mm, thickness 0.007mm, 99.9%