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

GF86699558

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

GF86721879

Molybdenum, foil, not light tested, 100x100mm, thickness 0.009mm, 99.9%

GF37054447

Molybdenum, foil, 50mm disks, thickness 0.20mm, annealed, 99.9%

GF56761656

Molybdenum, foil, 6mm disks, thickness 0.125mm, annealed, 99.9%

GF14309513

Molybdenum, foil, 50mm disks, thickness 0.15mm, annealed, 99.9%

GF95630430

Molybdenum, foil, 50mm disks, thickness 0.5mm, annealed, 99.9%

GF92295142

Molybdenum, foil, 6mm disks, thickness 0.015mm, as rolled, 99.9%

GF23232451

Molybdenum, foil, 6mm disks, thickness 0.01mm, 99.9%

GF32682528

Molybdenum, foil, 50mm disks, thickness 0.75mm, annealed, 99.9%

GF53557881

Molybdenum, foil, 6mm disks, thickness 0.20mm, annealed, 99.9%

GF95476078

Molybdenum, foil, not light tested, 25x25mm, thickness 0.001mm, 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%

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%

GF42672427

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

GF94661163

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

GF30227611

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

GF84542867

Molybdenum, foil, not light tested, 25x25mm, thickness 0.004mm, 99.9%

GF49821532

Molybdenum, foil, not light tested, 150x150mm, thickness 0.008mm, 99.9%

GF99294968

Molybdenum, foil, not light tested, 50x50mm, thickness 0.01mm, 99.9%

GF63646218

Molybdenum, foil, not light tested, 50x50mm, thickness 0.0025mm, 99.9%

GF49206854

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

GF53293833

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

GF20756572

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

GF11484750

Molybdenum, foil, not light tested, 25x25mm, thickness 0.01mm, 99.9%

GF95631419

Molybdenum, foil, not light tested, 50x50mm, thickness 0.008mm, 99.9%