title: Charge-transfer complexes of pyrimidine Schiff bases with aromatic nitro compounds.
abstract: Charge-transfer (CT) complexes of pyrimidine Schiff bases, derived from condensation of 2-aminopyrimidine and substituted benzaldehydes, with some aromatic polynitro compounds were prepared and investigated using IR, UV, visible and (1)H NMR spectroscopy. For all solid complexes, the main interaction between the donor and acceptor molecules takes place through the π-π* interaction. Strong and some weak acidic acceptors, in addition interact through proton transfer from the acceptor molecule to the basic centre of the electron donor. Also, an n-π* transition was detected in some complexes.
authors.affiliation: Chemistry Department, Faculty of Science, Cairo University,Gamaa Street, Giza, Egypt. yousrymi@yahoo.com
authors.forename: Yousry M
authors.initials: YM
authors.lastname: Issa
authors.forename: A L
authors.initials: AL
authors.lastname: el-Ansary
authors.forename: O E
authors.initials: OE
authors.lastname: Sherif
authors.forename: H B
authors.initials: HB
authors.lastname: Hassib
mesh_terms: D000588:Amines / Q000737:chemistry; D004583:Electrons; D009682:Magnetic Resonance Spectroscopy; D009574:Nitro Compounds / Q000737:chemistry*; D009578:Nitrobenzenes / Q000737:chemistry; D011743:Pyrimidines / Q000737:chemistry*; D012545:Schiff Bases / Q000737:chemistry*; D013055:Spectrophotometry, Infrared
chemical_list: D000588:Amines; D009574:Nitro Compounds; D009578:Nitrobenzenes; D011743:Pyrimidines; D012545:Schiff Bases; C036077:nitrobenzene