Yamada, Yasuyuki published the artcileMetal-Induced Structural Switching of a Folded Quinone-Sandwiched Porphyrin, Category: pyridine-derivatives, the publication is Journal of Inorganic and Organometallic Polymers and Materials (2013), 23(1), 180-185, database is CAplus.
The authors report the synthesis of a novel quinone-sandwiched porphyrin in which two benzoquinones are connected oppositely at the meso positions of a porphyrin through rigid 3-amido 2,2′-bipyridine linkers. 1H-NMR and single crystal x-ray analyses revealed that the quinone-sandwiched porphyrin has a folded structure in which the porphyrin unit was inserted into the two quinone moieties via π-stacking. Insertion of a Zn(II) ion into the porphyrin center induced a drastic conformational change which is resulted in coordination of the oxygen atoms of both benzoquinone moieties to the Zn-porphyrin to afford a 6-coordinated structure.
Journal of Inorganic and Organometallic Polymers and Materials published new progress about 39856-58-1. 39856-58-1 belongs to pyridine-derivatives, auxiliary class Pyridine,Bromide,Amine, name is 2-Bromopyridin-3-amine, and the molecular formula is C7H13BrSi, Category: pyridine-derivatives.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem