The author of 《Gas-phase structures of hemiporphyrazine and dicarbahemiporphyrazine: Key role of interactions inside coordination cavity》 were Otlyotov, Arseniy A.; Zhabanov, Yuriy A.; Pogonin, Alexander E.; Kuznetsova, Alexandra S.; Islyaikin, Mikhail K.; Girichev, Georgiy V.. And the article was published in Journal of Molecular Structure in 2019. HPLC of Formula: 141-86-6 The author mentioned the following in the article:
The structures of free hemiporphyrazine and dicarbahemiporphyrazine mols. were determined by gas-phase electron diffraction and DFT calculations Distance corrections (re – ra) were calculated using two different approaches: commonly applied Sipachev’s algorithm and a recently developed technique based on mol. dynamics simulations. Both approaches examined against each other for the first time in the refinement of a relatively large (52 atoms) structure were found to result in almost the same final structural parameters. Gas-phase structures of hemiporphyrazine and dicarbahemiporphyrazine are saddle distorted, in contrast to the planar structure previously found for the solid-state hemiporphyrazine. Doubly charged anionic form of hemiporphyrazine was calculated to be significantly saddle distorted, while the anion of dicarbahemiporphyrazine was determined to possess a planar equilibrium structure. Structural features of the mols. and their doubly charged anionic forms are discussed in terms of AIM and NBO analyses.2,6-Diaminopyridine(cas: 141-86-6HPLC of Formula: 141-86-6) was used in this study.
2,6-Diaminopyridine(cas: 141-86-6) belongs to pyridine. Pyridine and its simple derivatives are stable and relatively unreactive liquids, with strong penetrating odours that are unpleasant.HPLC of Formula: 141-86-6