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

RESUMO

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.

MATERIAIS

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GF12078457

Molybdenum, foil, 15mm disks, thickness 0.005mm, 99.9%

GF38499700

Molybdenum, foil, 25mm disks, thickness 0.0125mm, 99.9%

GF00245540

Molybdenum, foil, 150x150mm, thickness 1.0mm, annealed, 99.98%

GF15667229

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

GF30227611

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

GF03650543

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

GF61564552

Molybdenum, foil, 100x100mm, thickness 0.5mm, annealed, 99.9%

GF54155055

Molybdenum, foil, 1m coil, thickness 0.01mm, 99.9%

GF83172809

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

GF59747844

Molybdenum, foil, 100x100mm, thickness 0.30mm, annealed, 99.9%

GF62557016

Molybdenum, foil, 25x25mm, thickness 0.125mm, annealed, 99.9%

GF30193781

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

GF44777616

Molybdenum, foil, 50x50mm, thickness 0.1mm, annealed, 99.9%

GF84555681

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

GF15332790

Molybdenum, foil, 25x25mm, thickness 0.20mm, annealed, 99.9%

GF52864779

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

GF53293833

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

GF11002149

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

GF11484750

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

GF97201818

Molybdenum, foil, 100x100mm, thickness 0.1mm, annealed, 99.9%

GF55779317

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

GF95861953

Molybdenum, foil, 25x25mm, thickness 0.15mm, annealed, 99.9%

GF82744993

Molybdenum, foil, 50x50mm, thickness 0.15mm, annealed, 99.9%

GF25925902

Molybdenum, foil, 25mm disks, thickness 0.05mm, annealed, 99.9%

GF82331265

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

GF90335066

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

GF16830716

Molybdenum, foil, light tested, 25x25mm, thickness 0.0125mm, 99.9%

GF92302848

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

GF37855974

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

GF75912914

Molybdenum, foil, light tested, 50x50mm, thickness 0.008mm, 99.9%