Quality Control of 8-Hydroxyquinoline 1-oxide. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 8-Hydroxyquinoline 1-oxide, is researched, Molecular C9H7NO2, CAS is 1127-45-3, about Magnetic study of a one-dimensional Mn(II) coordination polymer dealing with π-π stacking.
A new one-dimensional chain manganese(II) coordination polymer, {[Mn(μ-Dpd)(Q)2(H2O)2]2(ClO4)}n (Dpd = 2,5-dimethylpyrazine-1,4-dioxide; Q = 8-hydroxylquinoline N-oxide), was synthesized with 2,5-dimethylpyrazine-1,4-dioxide as bridge ligand and 8-hydroxylquinoline N-oxide as terminal ligand, and its crystal structure determined by X-ray crystallog. The structure anal. indicates that there are two pathways for magnetic interactions: one is through bridge ligand 2,5-dimethylpyrazine-1,4-dioxide, and another is by π-π stacking of adjacent quinoline rings. The theor. calculations reveal that there exist a anti-ferromagnetic interaction from spin delocalization and a ferromagnetic interaction from spin polarization for 2,5-dimethylpyrazine-1,4-dioxide bridge pathway, but the anti-ferromagnetic interaction is stronger than the ferromagnetic interaction leading to an anti-ferromagnetic interaction with J = -2.53 cm-1, whereas for the π-π stacking pathway it resulted in a ferromagnetic interaction with J = 0.013 cm-1. The exptl. fitting on the data of the variable temperature magnetic susceptibilities gave the magnetic interaction constant J = 0.07 cm-1, which is similar with the results of the theor. calculations
Although many compounds look similar to this compound(1127-45-3)Quality Control of 8-Hydroxyquinoline 1-oxide, numerous studies have shown that this compound(SMILES:OC1=CC=CC2=CC=C[N+]([O-])=C12), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider