Repozytorium
Wyszukaj
Kolekcje
Inne
Synthesis, crystal structure and spectral properties of diammonium dihydrogen N-(methylene-2-pyridine)-N,N,-di-(methylenephosphonate).
Autorzy
Rok wydania
2013
Czasopismo
Journal of Molecular Structure
Numer woluminu
1036
Strony
35-41
DOI
10.1016/j.molstruc.2012.09.051
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
In this paper synthesis, crystal structure and spectral properties of a new, N-(methylene-2-pyridine)-N,N,-di-(methylenephosphonic) acid (hereinafter IV) are reported. The X-ray structure analysis revealed that in crystal of the ammonium dihydrogen N-(methylene-2-pyridine)-N,N-di(methylenephosphonate) (hereinafter V) two of the six oxygen atoms from phosphonic groups are protonated and form strong hydrogen bonds, moreover the N(pyridine) and N(amino) atoms are deprotonated. The acid–base properties of studied compound in aqueous solution indicated that the dissociation constants pK1dis 0.70 ± 0.03 and pK2dis 0.98 ± 0.05 are very similar to that determined for nitrilotri(methylphosphonic) acid.
Słowa kluczowe
Aminophosphonic acid, Heterocyclic compound, X-ray crystal structure, NMR spectroscopy, Acid-base equilibria
Adres publiczny
http://dx.doi.org/10.1016/j.molstruc.2012.09.051
Strona internetowa wydawcy
Podobne publikacje
A family of hydroxypyrone ligands designed and synthesized as iron chelators.
Toso Leonardo, Crisponi Guido, Nurchi Valeria Marina, Crespo-Alonso Miriam, Lachowicz Joanna Izabela, Santos M. Amélia, Marques Sergio M., Niclós-Gutíerrez Juan, González-Pérez Josefa M., Domínguez-Martín Alicia, Choquesillo-Lazarte Duane, Szewczuk Zbigniew
Optical properties and crystal structure of lanthanide(III) coordination compounds with 2-propenoic acid.
Oczko Grażyna, Starynowicz Przemysław, Buda W.
Iron(III) and aluminum(III) complexes with hydroxypyrone ligands aimed to design kojic acid derivatives with new perspectives.
Nurchi Valeria Marina, Crisponi Guido, Lachowicz Joanna Izabela, Murgia S., Pivetta T., Remelli Maurizio, Rescigno Antonio, Niclós-Gutíerrez Juan, González-Pérez Josefa M., Domínguez-Martín Alicia, Castiñeiras A., Szewczuk Zbigniew