Reaction between hydroxylamine and molybdate(VI): preparation of the complexes [Mo(NO)(CN)5]2-, [Mo(NO)(H2NO)Cl4]2-, and [Mo(NO)(H2NO)(N3)4]2-. Crystal structure of [(C6H5)4P]2[Mo(NO)(H2NO)(N3)4].H2O

Synthesis and characterization of single-crystalline α-MoO3 nanofibers for enhanced Li-ion intercalation applications

“…32 This compound has been found to be a useful starting material for the preparation of nitrosyl complexes of molybdenum(II) center of the type {MoNO} 4 by reactions with hydrochloric acid (HCl), cyanide ions (CN À ), azide ions (N 3 À ) as well as various chelating ligands such as 2 2 0 -bypyridine, oxalate, etc. 31 In the present work, a suspension of this polymeric material in double distilled water in the presence of few drops of concentrated HNO 3 was stirred at 70-80 C until a clear solution was obtained. The resulting yellowish-orange solution was then subjected to hydrothermal treatment at 220 C for 7 h. To the best of our knowledge, except pure molybdenum metal, low oxidation state molybdenum precursors have not been reported till now to synthesize nanostructured a-MoO 3 by hydrothermal processes.…”

“…In case of addition of excess hydroxylamine, a polymeric nitrosyl-complex of molybdenum(II) containing a hydroxylamido (NH 2 O À ) ligand of the type {MoNO} 4 configuration was isolated. 30,31 The notation {MNO} n is used to classify MNO complexes by the number of d-type electrons present in the metal when the nitrosyl ligand is formally considered to be N^O + , where M is metal and n is the number of d-electrons. 32 This compound has been found to be a useful starting material for the preparation of nitrosyl complexes of molybdenum(II) center of the type {MoNO} 4 by reactions with hydrochloric acid (HCl), cyanide ions (CN À ), azide ions (N 3 À ) as well as various chelating ligands such as 2 2 0 -bypyridine, oxalate, etc.…”

“…Synthesis of molybdenum and hydroxylamine polymeric complex has already been reported. 30,31 In a typical procedure, molybdic acid (MoO 3 85%) (2.00 g; Merck) and NaOH (1.00 g, 25.0 mmol; Merck) were dissolved in double distilled water (100 mL) at 70-80 C. The resultant clear solution was cooled to room temperature and then an excess of NH 2 OH$HCl (6.00 g, 86.4 mmol; Merck) was added under vigorous stirring. A yellow precipitate formed which was filtered off, washed with ethanol and dried in air.…”

Synthesis of α-MoO3 nanofibers for enhanced field-emission properties

“…The α-MoO3 nanofibers were synthesized as per our previously reported method [13]. A freshly prepared 0.7 g polymeric nitrosyl-complex of molybdenum (II) [18] was dissolved in a mixture of 35 mL distilled water and ) by drop-casting method. Tungsten and copper were used as a cathode and an anode, respectively.…”

Polyazide Chemistry: The First Binary Group 6 Azides, Mo(N3)6, W(N3)6, [Mo(N3)7]−, and [W(N3)7]−, and the [NW(N3)4]− and [NMo(N3)4]− Ions

“…Whereas numerous binary transition‐metal azido complexes have been reported,1 no binary Group 6 azides are known. Only a limited number of partially azide‐substituted molybdenum and tungsten compounds have been reported 2–30. Furthermore, no heptaazido compounds have been described.…”