N,N,N’,N’-tetra-n-butylurea was synthesized by the means of “nonphosgene”.The extraction properties of dioxouranium(Ⅱ)from nitric acid solution by N,N,N’,N’-tetra-n-butylurea(TBU)were studied.The extraction laws of dioxouranium(Ⅱ)with TBU were similar to that with tributyl-phosphate(TBP).Its extracting ability was bitter lower than that of TBP.In the all experiment condition,the third phase doesn’t appear.Its solvation number to dioxouranium was 2.
A new compound [Cu（AFO）2（N3）2]（DMF）（H2O）（AFO=4,5-diazafluorene-9-one）was synthesized.Its structure was determined by single X-ray diffraction.The crystal belongs to monoclinic system,space group C2/c.The crystallographic data,were determined a=1.2609（2）nm,b=0.8000（1）nm,c=2.6220（4）nm,β=109.964（6）°,V=2.4859（6）nm3,Z=4,F（000）=1236,Mr=603.07,Dc=1.611 Mg/m3,μ=0.937 nm-1,R1=0.0561,and wR2=0.1290.In the crystal Cu（II） atom is coordinated with four nitrogen from two AFO ligands and two nitrogen atoms from two azide ions to form an elonged-octahedron geometry.
