Literature reports of the efficacy of para-sulfonatocalix[6]- and calix[8]-arenes as U(vi) complexants indicated that they might be useful for in vivo chelation of the novel therapeutic alpha-emitter (230)U. We have studied the complexation of U(vi) with para-sulfonatocalix[6]arene and para-sulfonatocalix[8]arene by time resolved laser induced fluorescence spectroscopy and using competition met...

Abstract The new Fe(II) complex [Fe(trident)(bmik)](ClO 4 ) 2 ( 1 (trident = bis(2-pyridylmethyl)benzylamine and bmik bis(1-methylimidazole)ketone) exhibits a change of magnetic moment in dichloromethane (DCM) solution upon addition pyridine which is attributed to the Coordination-Induced Spin State Switching effect (CISSS). By attaching photoisomerizable azopyridine sidegroup tridentate ligand...

Azo dye of quinoline named 5-(3-pyridylazo)-8-hydroxyquinoline (PAHQ) was prepared via coupling reaction diazonium salt 3-aminopyridine and 8-hydroxyquinoline. he PAHQ characterized by elemental analysis, mass spectroscopy 1H-NMR. The complexes were under 2:1 (L:M) mole ratio. infrared spectroscopy, UV-Vis, molar conductance, magnetic susceptibility. IR spectra data indicate that ligand is bid...

The suitability of synchrotron radiation-induced X-ray emission (SRIXE) for the detection and identification of metal ions in preparations of purified, soluble proteins was tested. Glutathione S-transferase fused to the proximal zinc finger motif of human transcription factor IIIA or to the cysteine-rich motif of poliovirus protein 2C was expressed in bacteria and purified by affinity chromatog...