Crystal structure, magnetic and electrochemical properties of five-coordinate copper (II) complexes with 1,10-phenanthroline-5,6-dione

Copper(II) complexes of coumarin-derived Schiff bases and their anti-Candida activity

“…A mononuclear Cu(II) structure is assigned to complexes 3b-3k as the l eff value for these complexes varied from 1.73 to 2.18 B.M., and is characteristic for this type of Cu(II)complex [57][58][59][60][61][62][63]. The l eff value for complex 3a was 1.63 B.M.…”

Synthesis, crystal structure, electrochemical and fluorescence studies of a novel Zn(II)-fluorophore, 1,10-phenanthroline-5,6-dione (phen-dione)

“…The observed band did not shift significantly in comparison with the corresponding complexes. This was reasonable since the C=O moieties were far from the coordination site of the ligand with the metal ion [4,[28][29][30][31]. The IR spectrum of the complex showed a band around 1695 cm -1 , which was assigned to the υ(C=O) band of an o-quinoid group of the phen-dione ligand.…”

“…4) exhibited three absorption bands in the UV region and one band in the visible region. These bands centered at 253, 293 and 314 nm and were assigned to ligand-centered (π π*) transitions [28,[30][31][32]. The strong absorption band centered at 487 nm was assigned to n→π* of the C=O group of phen-dione ligand.…”

Synthesis and Crystal Structure of Bis(1,10-phenanthroline-5,6-dione)rhodium(I) Hexafluorophosphate, [Rh(phen-dione)2]PF6

“…In our studies of metal complexes with phen-dione (phen-dion = 1,10-phenanthroline-5,6-dione) ligands, we also included Rh(I) as metal centers. [2][3][4] During these studies, we decided to examine the nature of the Rh(I) complex formed from the reaction of RhCl3·3H2O with phen-dion, and report here on the synthesis and crystal structure of [Rh(phen-dione)2]PF6 (Fig. 1).…”

“…An orange-red single crystal with dimensions of 0.28 ¥ 0.40 ¥ 0.60 mm 3 was chosen for a single-crystal X-ray diffraction study. Data were collected on a SMART APEX diffractometer (graphite Mo Ka radiation, 0.71073 Å) at 100 K. The structure was solved by Direct Methods (SHELX97).…”