Uranium(Ⅵ) complex [UO2((R,S)-1,1′-binaphthylene-2,2′-dicarboxylate)(H2O)] was obtained by thehydrothermal treatment of UO2(NO3)2.6H2O with(R,S)-1,1′-binaphthylene-2,2′-dicarboxylic acid(BCA)(L) in water at 180 ...Uranium(Ⅵ) complex [UO2((R,S)-1,1′-binaphthylene-2,2′-dicarboxylate)(H2O)] was obtained by thehydrothermal treatment of UO2(NO3)2.6H2O with(R,S)-1,1′-binaphthylene-2,2′-dicarboxylic acid(BCA)(L) in water at 180 ℃ in Pyrex tube.The crystal belongs to monoclinic system,space group C2/c,with a=1.640 3(3) nm,b= 1.1967(2) nm,c=1.0663(17) nm,β=104.412(4)°,V=2.0272(6) nm3,Z=4.CCDC: 659617.展开更多
The complexes absorption of Np(Ⅴ) Np(Ⅴ) and Np(Ⅴ) Np(Ⅵ) have been studied in perchloric solution by spectrophotometric at 25℃.The results show that a special characteristic of actinide chemistry is their ability ...The complexes absorption of Np(Ⅴ) Np(Ⅴ) and Np(Ⅴ) Np(Ⅵ) have been studied in perchloric solution by spectrophotometric at 25℃.The results show that a special characteristic of actinide chemistry is their ability of formation of “cation cation” complexes in oxidation state(Ⅴ) by adding Np(Ⅴ) and Np(Ⅵ) into Np(Ⅴ) solution,respectively.The formation of these complexes obeys the law of mass action.According to the mass action law,the constants of complexation are calculated as K 1=3.20±0.13(mol·L -1 ) -1 and K 2=1.13±0.13(mol·L -1 ) -1 for Np(Ⅴ) Np(Ⅵ) and Np(Ⅴ) Np(Ⅴ),respectively.展开更多
A very complex 3D Uranium(Ⅳ) metal-organic framework was obtained by the hydrothermal treatment of UO2(NO3)2·6H2O with (R,S)-2,2′-dinitro-biphenyl-4,4′-dicarboxylic acid (BTNCA) (L) in water at 180 ℃ in Pyrex...A very complex 3D Uranium(Ⅳ) metal-organic framework was obtained by the hydrothermal treatment of UO2(NO3)2·6H2O with (R,S)-2,2′-dinitro-biphenyl-4,4′-dicarboxylic acid (BTNCA) (L) in water at 180 ℃ in Pyrex tubes. The crystal belongs to monoclinic system with space group P21/c, and a=0.545 90(3) nm, b=3.676 01(18) nm, c=2.659 81(13) nm, β=91.4060(10)°, V=5.335 9(5) nm3, Z=4. CCDC:659615.展开更多
文摘Uranium(Ⅵ) complex [UO2((R,S)-1,1′-binaphthylene-2,2′-dicarboxylate)(H2O)] was obtained by thehydrothermal treatment of UO2(NO3)2.6H2O with(R,S)-1,1′-binaphthylene-2,2′-dicarboxylic acid(BCA)(L) in water at 180 ℃ in Pyrex tube.The crystal belongs to monoclinic system,space group C2/c,with a=1.640 3(3) nm,b= 1.1967(2) nm,c=1.0663(17) nm,β=104.412(4)°,V=2.0272(6) nm3,Z=4.CCDC: 659617.
文摘The complexes absorption of Np(Ⅴ) Np(Ⅴ) and Np(Ⅴ) Np(Ⅵ) have been studied in perchloric solution by spectrophotometric at 25℃.The results show that a special characteristic of actinide chemistry is their ability of formation of “cation cation” complexes in oxidation state(Ⅴ) by adding Np(Ⅴ) and Np(Ⅵ) into Np(Ⅴ) solution,respectively.The formation of these complexes obeys the law of mass action.According to the mass action law,the constants of complexation are calculated as K 1=3.20±0.13(mol·L -1 ) -1 and K 2=1.13±0.13(mol·L -1 ) -1 for Np(Ⅴ) Np(Ⅵ) and Np(Ⅴ) Np(Ⅴ),respectively.
文摘A very complex 3D Uranium(Ⅳ) metal-organic framework was obtained by the hydrothermal treatment of UO2(NO3)2·6H2O with (R,S)-2,2′-dinitro-biphenyl-4,4′-dicarboxylic acid (BTNCA) (L) in water at 180 ℃ in Pyrex tubes. The crystal belongs to monoclinic system with space group P21/c, and a=0.545 90(3) nm, b=3.676 01(18) nm, c=2.659 81(13) nm, β=91.4060(10)°, V=5.335 9(5) nm3, Z=4. CCDC:659615.
