The hydrogen-bonding copper complex [Cu（mal）（phen）（H2O）]2·3H2O（mal=malonate;phen=1,10-phenanthroline）was synthesized and characterized byelementary analysis,IR and TG-DTA.Single crystal X-ray diffraction analysis indicates that the compound crystallizes in a triclinic system,space group Pī,the cell parameters a=11.771（2）?,b=12.527（3）?,c=11.582（2）?;a=105.49（3）°,β=109.27（3）°,γ=92.13（3）°,V=1539（5）A3,Z=2,F（000）=794,S=1.087,R=0.0486,wR=0.1220.The copper atom is five-coordinated in a distorted square pyramidal environment to two oxygen atoms of malonate,two nitrogen atoms of 1,10-phenanthroline and a water molecule.Strong hydrogen bonds between coordinated water and oxygen atoms of malonate ligands build H-bonding tetramers.Weak hydrogen bonds link these tetramers by crystal lattice water,forming two-dimensional supramolecular network.
The solvent extraction of U(Ⅵ) from nitric acid solution was studied with one new extractant, 4-p-methylbenzoyl-2,4-dihydron-5-methyl-2-phenyl-pyrazol-3-thione (HMeBMPPT), synthesized via acylation, chlorination and sulfurication of the starting material 1-phenyl-3-methyl-pyrazolone-5(PMP) in high yield. The structure of the new extractant was confirmed by means of elemental analysis, MS, 1H NMR and X-ray diffraction. The effects of diluent, temperature, the concentrations of nitric acid, and the concentration of extractant on the extraction were investigated and the extraction mechanism is suggested.
