In 2017,Vernia, Jennifer E.; Warmin, Mary R.; Krause, Jeanette A.; Tierney, David L.; Baldwin, Michael J. published 《Photochemistry and Anion-Controlled Structure of Fe(III) Complexes with an α-Hydroxy Acid-Containing Tripodal Amine Chelate》.Inorganic Chemistry published the findings.Computed Properties of C6H7Br2N The information in the text is summarized as follows:
The tripodal amine chelate with two pyridyl groups and an α-hydroxy acid (AHA) group, Pyr-TPA-AHA, was synthesized. Different Fe(III) complexes form with this chelate depending upon the counterion of the Fe(III) source used in the synthesis. A dinuclear complex, Fe(III)2(Pyr-TPA-AHA)2(μ-O), 1, and mononuclear complexes Fe(III)(Pyr-TPA-AHA)X (X = Cl- or Br-, 2 and 3, resp.) were synthesized. 2 Can be easily converted to 1 by addition of silver nitrate or a large excess of water. The structure of 1 was solved by x-ray crystallog. (C32H34N6O7Fe2·13H2O, a 14.1236(6), b 14.1236(6), c 21.7469(15) Å, α = β = γ 90.°, tetragonal, P42212, Z = 4). 2 And 3 each have simple quasireversible cyclic voltammograms with E1/2 (vs. aqueous Ag/AgCl) = +135 mV for 2 and +470 for 3 in acetonitrile. The cyclic voltammogram for 1 in acetonitrile has a quasireversible feature at E1/2 = -285 mV and an irreversible cathodic feature at -1140 mV. All three complexes are photochem. active upon irradiation with UV light, resulting in cleavage of the AHA group and reduction of the iron to Fe(II). Photolysis of 1 results in reduction of both Fe(III) ions in the dinuclear complex for each AHA group that is cleaved, while photolysis of 2 and 3 results in reduction of a single Fe(III) for each AHA cleavage. The quantum yields for 2 and 3 are significantly higher than that of 1. The experimental process involved the reaction of 2-(Bromomethyl)pyridine hydrobromide(cas: 31106-82-8Computed Properties of C6H7Br2N)
2-(Bromomethyl)pyridine hydrobromide(cas: 31106-82-8) belongs to pyridine. Pyridine is very deactivated towards electrophilic substitution with respect to benzene. For this reason classical formylation, using methods such as the Gattermann or Vilsmeier reactions, are not generally successful. Computed Properties of C6H7Br2N