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
In this paper we describe a new copper diphosphonate compound [NH2(C2H4)2NH2]Cu3(hedp)2(H2O)4(hedp=1 hydroxyethyli denediphosphonate, CH3C(OH)(PO3)2) synthesized under hydrothermal conditions. Single crystal structure...In this paper we describe a new copper diphosphonate compound [NH2(C2H4)2NH2]Cu3(hedp)2(H2O)4(hedp=1 hydroxyethyli denediphosphonate, CH3C(OH)(PO3)2) synthesized under hydrothermal conditions. Single crystal structure determination reveals that the compound contains anionic ladder like chains of {Cu3(hedp)2(H2O)4}n which are linked by moderately strong inter chain hydrogen bonds, forming a supramolecular layer. The protonated piperazine fill the spaces between the layers.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In this paper we describe a new copper diphosphonate compound [NH2(C2H4)2NH2]Cu3(hedp)2(H2O)4(hedp=1 hydroxyethyli denediphosphonate, CH3C(OH)(PO3)2) synthesized under hydrothermal conditions. Single crystal structure determination reveals that the compound contains anionic ladder like chains of {Cu3(hedp)2(H2O)4}n which are linked by moderately strong inter chain hydrogen bonds, forming a supramolecular layer. The protonated piperazine fill the spaces between the layers.
