Počet záznamů: 1

Structure and Raman spectra of pyridyl substituted diketo-pyrrolo-pyrrole isomers and polymorphs

  1. 1.
    0350261 - UMCH-V 2011 RIV NL eng J - Článek v odborném periodiku
    Luňák jr., S. - Vyňuchal, J. - Horáčková, P. - Frumarová, Božena - Žák, Z. - Kučerík, J. - Salyk, O.
    Structure and Raman spectra of pyridyl substituted diketo-pyrrolo-pyrrole isomers and polymorphs.
    Journal of Molecular Structure. Roč. 983, 1-3 (2010), s. 39-47 ISSN 0022-2860
    Výzkumný záměr: CEZ:AV0Z40500505
    Klíčová slova: diketo-pyrrolo-pyrrole * density functional theory * Raman spectra
    Kód oboru RIV: CC - Organická chemie
    Impakt faktor: 1.599, rok: 2010

    A complete series of symmetrical and unsymmetrical isomeric pairs of 4-and 2-pyridyl substitured diketo-pyrrolo-pyrroles was synthesized. Both polymorphs of 3,6- bis-(-40-pyrisyl)-2,5-dihydro-pyrrolo(3,4-c) pyrrole-1,4-dione were prepared. Asymmetrical 3-phenyl-6-pyridine-20-yl-2,5-dihydro-pyrrolo (3,4)pyrrole-1,4-dione was synthesized for the first time. Density functional theory calculations of the ground state geometry were compared with experimental X-ray diffraction data. Theoretical Raman spectra enabled to assign the main peaks of the expeerimental ones for all four pyridyl DPP derivatives.
    Trvalý link: http://hdl.handle.net/11104/0006128