The half Dawson structure complex has been prepared by reaction of Na2WO4·2H2O, Na2MoO4·2H2O and NaH2PO4 in water. 4H3[PW6Mo4Cu2O38(H2O)2] have been synthesized by reaction of 9- and Cu2+ in water and recrys...The half Dawson structure complex has been prepared by reaction of Na2WO4·2H2O, Na2MoO4·2H2O and NaH2PO4 in water. 4H3[PW6Mo4Cu2O38(H2O)2] have been synthesized by reaction of 9- and Cu2+ in water and recrystallized in a mixed acetone/water solvent. They were characterized by elemental analyses, IR spectra and electronic spectra. The crystal structure of 4H3[PW6Mo4Cu2O38(H2O)2] has been determined by X ray structure analysis for the first time, which belongs to trigonal with space group R 3, a=b=c=1.53081 (18) nm, α=β=γ=109.458(17)°, Z=1, Dc=3.141Mg·m-3, R=0.0780, Rw=0.1480. The sites of the molybdenum, tungsten and copper atoms are disordered over 12 possible locations in the crystal, and the anion has a high symmetry due to the disorder of the molybdenum, tungsten and copper atoms. CCDC: 176656.展开更多
The crystal structure of [Cu(sal ala)bipy]·CH 3OH·2H 2O (sal ala: salicylaldehyde alaninato, bipy: 2,2′ bipyridine), a potential anticancer agent and tumor imaging agent, is determined at 123 K. The complex...The crystal structure of [Cu(sal ala)bipy]·CH 3OH·2H 2O (sal ala: salicylaldehyde alaninato, bipy: 2,2′ bipyridine), a potential anticancer agent and tumor imaging agent, is determined at 123 K. The complex crystallizes in triclinic, space group P - 1. The cell dimensions are a =0 894 8(2) nm, b =0 973 1(2) nm, c =1 263 2(3) nm; α =78 06(3)°, β =78 02(3)°, γ =88 22(3)°; V =1 052 6(4) nm 3, M r=479 99, Z =2, ρ c=1 514 g·cm -3 . The total number of 4 313 independent reflections with I>2σ(I) are used for the structure determination. The final R is 0 075 8 and R w is 0 179.The central Cu 2+ ion is penta coordinated by tridentate Schiff base and bidentate bipy, resulting in a distorted square pyramid coordination polyhedron. Three kinds of hydrogen bonds are revealed.展开更多
文摘The half Dawson structure complex has been prepared by reaction of Na2WO4·2H2O, Na2MoO4·2H2O and NaH2PO4 in water. 4H3[PW6Mo4Cu2O38(H2O)2] have been synthesized by reaction of 9- and Cu2+ in water and recrystallized in a mixed acetone/water solvent. They were characterized by elemental analyses, IR spectra and electronic spectra. The crystal structure of 4H3[PW6Mo4Cu2O38(H2O)2] has been determined by X ray structure analysis for the first time, which belongs to trigonal with space group R 3, a=b=c=1.53081 (18) nm, α=β=γ=109.458(17)°, Z=1, Dc=3.141Mg·m-3, R=0.0780, Rw=0.1480. The sites of the molybdenum, tungsten and copper atoms are disordered over 12 possible locations in the crystal, and the anion has a high symmetry due to the disorder of the molybdenum, tungsten and copper atoms. CCDC: 176656.
文摘The crystal structure of [Cu(sal ala)bipy]·CH 3OH·2H 2O (sal ala: salicylaldehyde alaninato, bipy: 2,2′ bipyridine), a potential anticancer agent and tumor imaging agent, is determined at 123 K. The complex crystallizes in triclinic, space group P - 1. The cell dimensions are a =0 894 8(2) nm, b =0 973 1(2) nm, c =1 263 2(3) nm; α =78 06(3)°, β =78 02(3)°, γ =88 22(3)°; V =1 052 6(4) nm 3, M r=479 99, Z =2, ρ c=1 514 g·cm -3 . The total number of 4 313 independent reflections with I>2σ(I) are used for the structure determination. The final R is 0 075 8 and R w is 0 179.The central Cu 2+ ion is penta coordinated by tridentate Schiff base and bidentate bipy, resulting in a distorted square pyramid coordination polyhedron. Three kinds of hydrogen bonds are revealed.
