论文部分内容阅读
A new cadmium(II) compound, {[Cd[μ-(4,4’-dps)]2(H2O)2]·(4-abs)2(H2O)2}n 1 (4,4’-dps = 4,4’-dipyridylsulfide, 4-abs = deprotonated 4-amino benzenesulfonic acid), has been synthesized and structurally characterized. It belongs to the orthorhombic system, space group Pbcn with a = 19.950(3), b = 10.6381(13), c = 18.055(2) , V = 3831.8(8) 3, Z = 4, C32H36CdN6O10S4, Mr = 905.31, F(000) = 1848, μ = 0.850 mm-1, Dc = 1.569 Mg/m3 , the final R = 0.0238 and wR = 0.0589 for 3080 observed reflections with I > 2σ(I). Complex 1 is a one-dimensional linear chain coordination polymer and the repeat unit is comprised of doubly charged cadmium complex cation, uncoordinated 4-aminobenzene sulfonate anions and water molecules. The cadmium(II) ion adopts a six-coordinate distorted octahedral geometry. Complex 1 is stabilized and linked into a three-dimensional layered structure through intermolecular O–H···O and N–H···O hydrogen bonds together with electrostatic force. The cyclic voltammograms and fluorescence spectrum of 1 were also measured. It shows one irreversible redox process and emits a very strong and sharp fluorescent band at about 341 nm.
A new cadmium (II) compound, {[Cd [μ- (4,4’-dps)] 2 (H2O) 2] (4-abs) 2 = 4,4’-dipyridylsulfide, 4-abs = deprotonated 4-amino benzenesulfonic acid, has been synthesized and structurally characterized. It belongs to the orthorhombic system, space group Pbcn with a = 19.950 (3), b = 10.6381 , C = 18.055 (2) , V = 3831.8 (8) 3, Z = 4, C32H36CdN6O10S4, Mr = 905.31, F (000) = 1848, μ = 0.850 mm-1, Dc = 1.569 Mg / the final R = 0.0238 and wR = 0.0589 for 3080 observed reflections with I> 2σ (I). Complex 1 is a one-dimensional linear chain coordination polymer and the repeat unit is comprised of doubly charged cadmium complex cation, uncoordinated 4-aminobenzene sulfonate anions and water molecules. The cadmium (II) ion adopts a six-coordinate distorted octahedral geometry. Complex 1 is stabilized and linked into a three-dimensional layered structure through intermolecular O-H ··· O and N-H ··· O hydrogen bonds together with electrostatic force. The cyclic voltam mograms and fluorescence spectrum of 1 were also measured. It shows one irreversible redox process and emits a very strong and sharp fluorescent band at about 341 nm.