Facile Nitrite Reduction and Conversion Cycle of {Fe(NO)}^6/7 Species: Chemistry of Iron N-Confused Porphyrin Complexes via Protonation/Deprotonation

Facile Nitrite Reduction and Conversion Cycle of {Fe(NO)}6/7 Species: Chemistry of Iron N-Confused Porphyrin Complexes via Protonation/Deprotonatio

Facile Nitrite Reduction and Conversion Cycle of {Fe(NO)}^6/7 Species: Chemistry of Iron N-Confused Porphyrin Complexes via Protonation/Deprotonation

Facile Nitrite Reduction and Conversion Cycle of {Fe(NO)}6/7 Species: Chemistry of Iron N-Confused Porphyrin Complexes via Protonation/Deprotonatio

Facile Nitrite Reduction and Conversion Cycle of {Fe(NO)}^6/7 Species: Chemistry of Iron N-Confused Porphyrin Complexes via Protonation/Deprotonation

Facile Nitrite Reduction and Conversion Cycle of {Fe(NO)}6/7 Species: Chemistry of Iron N-Confused Porphyrin Complexes via Protonation/Deprotonatio

Facile Nitrite Reduction and Conversion Cycle of {Fe(NO)}^6/7 Species: Chemistry of Iron N-Confused Porphyrin Complexes via Protonation/Deprotonation

Facile Nitrite Reduction and Conversion Cycle of {Fe(NO)}6/7 Species: Chemistry of Iron N-Confused Porphyrin Complexes via Protonation/Deprotonatio

Remarkable Paramagnetically Shifted ¹H and ²H NMR Spectra of Iron(II) Complexes of 2-Aza-21-carbaporphyrin: An Evidence for Agostic Interaction

Iron(II) 2-aza-21-carbaporphyrins have been characterized by paramagnetically shifted 1H and 2H NMR spectra. The high-spin iron(II) complex (HCTPPH)FeIIBr displays the β-H resonances which reflect the combination σ and π routes of spin density delocalization. The uniquely large isotropic shift of the inner H(21) hydrogen (812 ppm, 298 K) indicates an FeII−{C(21)−H} agostic interaction

Demetalation of the Regioselective Oxygenation Product of an N-Confused Porphyrin Complex

The demetalation of MIII(HCTPPO)Br (M = Mn or Fe) afforded two hydroxylated N-confused porphyrinoids. CTPPOH retains the tautomer form of the N-confused porphyrin with a hydroxyl group substituted in the inner-core carbon. The further attack of OH- to the meso carbon afforded a dihydroxylated N-confused macrocycle, CTPP(OH)2

Demetalation of the Regioselective Oxygenation Product of an N-Confused Porphyrin Complex

The demetalation of MIII(HCTPPO)Br (M = Mn or Fe) afforded two hydroxylated N-confused porphyrinoids. CTPPOH retains the tautomer form of the N-confused porphyrin with a hydroxyl group substituted in the inner-core carbon. The further attack of OH- to the meso carbon afforded a dihydroxylated N-confused macrocycle, CTPP(OH)2