Synthesis and reactions of azido complexes of iron

Solvothermal Metal Azide Decomposition Routes to Nanocrystalline Metastable Nickel, Iron, and Manganese Nitrides

“…The metal azide intermediate’s stability, based on the onset of significant gas evolution/azide decomposition, appears to increase from Ni (∼200 °C) to Fe (∼225 °C) to Mn (∼240 °C). These values are in rough agreement with reported stabilities of Ni(N 3 ) 2 (steady dec at 230 °C), phosphine-coordinated Fe(N 3 ) 2 (dec ∼160−170 °C), and Mn(N 3 ) 2 (dec 218 °C)…”

Solvothermal Metal Azide Decomposition Routes to Nanocrystalline Metastable Nickel, Iron, and Manganese Nitrides

“…The metal azide intermediate’s stability, based on the onset of significant gas evolution/azide decomposition, appears to increase from Ni (∼200 °C) to Fe (∼225 °C) to Mn (∼240 °C). These values are in rough agreement with reported stabilities of Ni(N 3 ) 2 (steady dec at 230 °C), phosphine-coordinated Fe(N 3 ) 2 (dec ∼160−170 °C), and Mn(N 3 ) 2 (dec 218 °C)…”

Synthesis, Characterization, and Electrochemistry of a Series of Iron(II) Complexes Containing Self-Assembled 1,5-Diaza-3,7-diphosphabicyclo[3.3.1]nonane Ligands

“…The spectrum was unchanged after 48 h, showing that the isomerization process is less favorable for cis- 4 and trans- 4 than it is for the thiocyanate analogues. The observation of both cis and trans isomers of 4 is in contrast to the synthesis of [Fe(N 3 ) 2 (dmpe) 2 ] (dmpe = 1,2-bis(dimethylphosphino)ethane, which showed no evidence for the cis isomer, with only the trans isomer observed in the 31 P{ 1 H} NMR spectrum …”

The Reactivity Patterns of Low-Coordinate Iron−Hydride Complexes

“…The lone example of a triazenido ligand on iron is in a dinuclear iron−carbonyl complex, where the triazenide derives from protonation of an anionic azide complex . To our knowledge, the only other reaction of an iron hydride complex with an azide involves the addition of sodium azide to L 2 FeH 2 (L = bidentate phosphine ligand) in methanol, which replaces the hydride ligand with azide . A search of the CSD shows that L t Bu Fe(HNNNAd) is the first structurally characterized complex of a triazenido ligand bearing a hydrogen atom .…”

Solvothermal Metal Azide Decomposition Routes to Nanocrystalline Metastable Nickel, Iron, and Manganese Nitrides

“…The metal azide intermediate’s stability, based on the onset of significant gas evolution/azide decomposition, appears to increase from Ni (∼200 °C) to Fe (∼225 °C) to Mn (∼240 °C). These values are in rough agreement with reported stabilities of Ni(N 3 ) 2 (steady dec at 230 °C), phosphine-coordinated Fe(N 3 ) 2 (dec ∼160−170 °C), and Mn(N 3 ) 2 (dec 218 °C)…”

Synthesis, Characterization, and Electrochemistry of a Series of Iron(II) Complexes Containing Self-Assembled 1,5-Diaza-3,7-diphosphabicyclo[3.3.1]nonane Ligands

“…The spectrum was unchanged after 48 h, showing that the isomerization process is less favorable for cis- 4 and trans- 4 than it is for the thiocyanate analogues. The observation of both cis and trans isomers of 4 is in contrast to the synthesis of [Fe(N 3 ) 2 (dmpe) 2 ] (dmpe = 1,2-bis(dimethylphosphino)ethane, which showed no evidence for the cis isomer, with only the trans isomer observed in the 31 P{ 1 H} NMR spectrum …”

The Reactivity Patterns of Low-Coordinate Iron−Hydride Complexes

“…The lone example of a triazenido ligand on iron is in a dinuclear iron−carbonyl complex, where the triazenide derives from protonation of an anionic azide complex . To our knowledge, the only other reaction of an iron hydride complex with an azide involves the addition of sodium azide to L 2 FeH 2 (L = bidentate phosphine ligand) in methanol, which replaces the hydride ligand with azide . A search of the CSD shows that L t Bu Fe(HNNNAd) is the first structurally characterized complex of a triazenido ligand bearing a hydrogen atom .…”

Solvothermal Metal Azide Decomposition Routes to Nanocrystalline Metastable Nickel, Iron, and Manganese Nitrides

“…The metal azide intermediate’s stability, based on the onset of significant gas evolution/azide decomposition, appears to increase from Ni (∼200 °C) to Fe (∼225 °C) to Mn (∼240 °C). These values are in rough agreement with reported stabilities of Ni(N 3 ) 2 (steady dec at 230 °C), phosphine-coordinated Fe(N 3 ) 2 (dec ∼160−170 °C), and Mn(N 3 ) 2 (dec 218 °C)…”

Synthesis, Characterization, and Electrochemistry of a Series of Iron(II) Complexes Containing Self-Assembled 1,5-Diaza-3,7-diphosphabicyclo[3.3.1]nonane Ligands

“…The spectrum was unchanged after 48 h, showing that the isomerization process is less favorable for cis- 4 and trans- 4 than it is for the thiocyanate analogues. The observation of both cis and trans isomers of 4 is in contrast to the synthesis of [Fe(N 3 ) 2 (dmpe) 2 ] (dmpe = 1,2-bis(dimethylphosphino)ethane, which showed no evidence for the cis isomer, with only the trans isomer observed in the 31 P{ 1 H} NMR spectrum …”

The Reactivity Patterns of Low-Coordinate Iron−Hydride Complexes

“…The lone example of a triazenido ligand on iron is in a dinuclear iron−carbonyl complex, where the triazenide derives from protonation of an anionic azide complex . To our knowledge, the only other reaction of an iron hydride complex with an azide involves the addition of sodium azide to L 2 FeH 2 (L = bidentate phosphine ligand) in methanol, which replaces the hydride ligand with azide . A search of the CSD shows that L t Bu Fe(HNNNAd) is the first structurally characterized complex of a triazenido ligand bearing a hydrogen atom .…”