Sodium bis[N-2-oxyphenyl-5-substituted-salicylideneiminato-ONO]ruthenate（Ⅲ） hemitriethylamine compounds of general formula Na[Ru（N-R-5-X-salim）2]＇0.5Et3N, where, R = C6H40, X = El, Br, NO2, salim = salicylidenei...Sodium bis[N-2-oxyphenyl-5-substituted-salicylideneiminato-ONO]ruthenate（Ⅲ） hemitriethylamine compounds of general formula Na[Ru（N-R-5-X-salim）2]＇0.5Et3N, where, R = C6H40, X = El, Br, NO2, salim = salicylideneiminato, Et3N triethylamine, were synthesized and characterized on the basis of elemental analysis, MALDI-TOF （matrix-assisted laser desorption/ionization/time-of-flight） mass spectra, IH NMR （nuclear magnetic resonance）, electronic spectra and cyclic voltammograms. Ru（Ⅲ） is chelated with two O2N anionic tridentate Schiff bases derived from 5-X-salicyladehyde and 2-aminophenol. Spectroscopic titrations of the Ru（Ⅲ） compounds with CT DNA （calf thymus DNA） in the LMCT （ligand metal charge transfer） region have shown moderate intercalation properties of compounds with binding constants KD = 2.06-3.85 × 104 Ml. Electrochemical evidence of intercalative mode of binding is based on the decrease of current and shift of anodic and cathodic peaks towards higher values of potential with IxL-increment of CT DNA in Ru（Ⅲ） compound solution.展开更多
The crystal structure of the title compound [Mn(sapn)(H2O)2]Br (H2sapn = N,N?bis-(salicylidene)-1,3-diaminopropane) with formula C17H18N2O4MnBr and Mr = 449.18 has been determined by X-ray diffraction. The crystal is ...The crystal structure of the title compound [Mn(sapn)(H2O)2]Br (H2sapn = N,N?bis-(salicylidene)-1,3-diaminopropane) with formula C17H18N2O4MnBr and Mr = 449.18 has been determined by X-ray diffraction. The crystal is triclinic with space group P , a = 7.777(1), b = 10.459(2), c = 11.96(3), = 78.22(1), =75.16(8), = 86.80(5)? V = 919(3)3, Dc = 1.631g/cm3, F(000) = 456, = 2.917 cm-1 and Z = 2, with R = 0.0428 and wR = 0.1092 for 2427 reflections (I > 2s(I)). Two nitrogen and two oxygen atoms from the sapn group chelate to the MnⅢ ion, forming a distorted octahedral geometry together with two coordinated water molecules. A bromide anion exists outside as a counter ion.展开更多
文摘Sodium bis[N-2-oxyphenyl-5-substituted-salicylideneiminato-ONO]ruthenate（Ⅲ） hemitriethylamine compounds of general formula Na[Ru（N-R-5-X-salim）2]＇0.5Et3N, where, R = C6H40, X = El, Br, NO2, salim = salicylideneiminato, Et3N triethylamine, were synthesized and characterized on the basis of elemental analysis, MALDI-TOF （matrix-assisted laser desorption/ionization/time-of-flight） mass spectra, IH NMR （nuclear magnetic resonance）, electronic spectra and cyclic voltammograms. Ru（Ⅲ） is chelated with two O2N anionic tridentate Schiff bases derived from 5-X-salicyladehyde and 2-aminophenol. Spectroscopic titrations of the Ru（Ⅲ） compounds with CT DNA （calf thymus DNA） in the LMCT （ligand metal charge transfer） region have shown moderate intercalation properties of compounds with binding constants KD = 2.06-3.85 × 104 Ml. Electrochemical evidence of intercalative mode of binding is based on the decrease of current and shift of anodic and cathodic peaks towards higher values of potential with IxL-increment of CT DNA in Ru（Ⅲ） compound solution.
基金This work was supported by The State Key Basic Research and Development Plan (G1998010100) NNSFC (No. 2973309029973047 and 39970177)
文摘The crystal structure of the title compound [Mn(sapn)(H2O)2]Br (H2sapn = N,N?bis-(salicylidene)-1,3-diaminopropane) with formula C17H18N2O4MnBr and Mr = 449.18 has been determined by X-ray diffraction. The crystal is triclinic with space group P , a = 7.777(1), b = 10.459(2), c = 11.96(3), = 78.22(1), =75.16(8), = 86.80(5)? V = 919(3)3, Dc = 1.631g/cm3, F(000) = 456, = 2.917 cm-1 and Z = 2, with R = 0.0428 and wR = 0.1092 for 2427 reflections (I > 2s(I)). Two nitrogen and two oxygen atoms from the sapn group chelate to the MnⅢ ion, forming a distorted octahedral geometry together with two coordinated water molecules. A bromide anion exists outside as a counter ion.
