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

GF82331265

Molybdenum, foil, light tested, 25x25mm, thickness 0.05mm, annealed, 99.9%

GF46843645

Molybdenum, foil, light tested, 50x50mm, thickness 0.009mm, 99.9%

GF38763388

Molybdenum, foil, 8mm disks, thickness 0.1mm, annealed, 99.9%

GF13141572

Molybdenum, foil, 6mm disks, thickness 0.5mm, annealed, 99.9%

GF83172809

Molybdenum, foil, light tested, 130x130mm, thickness 0.015mm, as rolled, 99.9%

GF46109099

Molybdenum, foil, 8mm disks, thickness 0.03mm, annealed, 99.9%

GF70653999

Molybdenum, foil, 8mm disks, thickness 0.020mm, annealed, 99.9%

GF04296618

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

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%

GF20045786

Molybdenum, foil, not light tested, 50x50mm, thickness 0.002mm, 99.9%

GF48963549

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

GF52864779

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

GF61121304

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

GF11002149

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

GF16892242

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

GF37145358

Molybdenum, foil, not light tested, 50x50mm, thickness 0.007mm, 99.9%

GF87443477

Molybdenum, foil, 8mm disks, thickness 0.075mm, annealed, 99.9%

GF31650342

Molybdenum, foil, 8mm disks, thickness 0.15mm, annealed, 99.9%

GF15667229

Molybdenum, foil, light tested, 100x100mm, thickness 0.01mm, 99.9%

GF36011977

Molybdenum, foil, 8mm disks, thickness 0.01mm, 99.9%

GF43534379

Molybdenum, foil, 8mm disks, thickness 0.20mm, annealed, 99.9%

GF94586372

Molybdenum, foil, 8mm disks, thickness 0.005mm, 99.9%

GF04498702

Molybdenum, foil, 8mm disks, thickness 0.0125mm, 99.9%