The structure, spectroscopic properties and chemical stability of [VS4-(CuPPh3)3 (CuCl)Br2] in CDCl3 solution have been studied by multinuclear NMR tech-nique. Two peaks with relative intensity of 1: 4 are found in th...The structure, spectroscopic properties and chemical stability of [VS4-(CuPPh3)3 (CuCl)Br2] in CDCl3 solution have been studied by multinuclear NMR tech-nique. Two peaks with relative intensity of 1: 4 are found in the31P-{1H} spectra.Some 13C-{1H} and 1H NMR peaks have the same integral intensity ratio. These com-plemented the results of 31P-{1H} NMR. The experimental results demonstrates that the PPh3 ligand bound to Cu(6) is not equivalent with the four PPh3 ligands bound toCu(2) ~Cu (5 )- It affords an evidence that the title compound in the solution keepssimilar structure to solid state.展开更多
The title V-Cu-S heterometallic cluster compound C84 H86Cl4Cu6N2O4P4S6V2, crystallizes in the monoclinic space group P21/n with a=16.381(5), b=17.114(3),c=16.749(6) A,β=107. 04(3)°,V=4490(2)A3, Mr=2128.84,Z=2,Dc...The title V-Cu-S heterometallic cluster compound C84 H86Cl4Cu6N2O4P4S6V2, crystallizes in the monoclinic space group P21/n with a=16.381(5), b=17.114(3),c=16.749(6) A,β=107. 04(3)°,V=4490(2)A3, Mr=2128.84,Z=2,Dc=1. 57 g/cm3,μ= 19. 6 cm-1,F(000)=2160. Final R=0.074(Rw=0.082) for 2662 unique reflections with I≥3σ(I). The V atom in the compound retains the tetrahedral geometry of the VS3O with S-V-S or S-V-O angles of 108.6(6)～110.3 (6)°.The cluster core [V2Cu6S6O2] of the compound can be regarded as two cluster cores [VCu3S3O] bonded by bondings of the Cu-Cu'(distances of 2.774(3)～2.707(5) A) and Cu-S (distances of 2.463(7)～2.396(9) A) with centrosymmetric. Atoms of the cluster core V2Cu6 form a distorted cube with the Cu Cu'or the V-Cu distances of 2. 774(3)～2. 707(5) A.展开更多
文摘The structure, spectroscopic properties and chemical stability of [VS4-(CuPPh3)3 (CuCl)Br2] in CDCl3 solution have been studied by multinuclear NMR tech-nique. Two peaks with relative intensity of 1: 4 are found in the31P-{1H} spectra.Some 13C-{1H} and 1H NMR peaks have the same integral intensity ratio. These com-plemented the results of 31P-{1H} NMR. The experimental results demonstrates that the PPh3 ligand bound to Cu(6) is not equivalent with the four PPh3 ligands bound toCu(2) ~Cu (5 )- It affords an evidence that the title compound in the solution keepssimilar structure to solid state.
文摘The title V-Cu-S heterometallic cluster compound C84 H86Cl4Cu6N2O4P4S6V2, crystallizes in the monoclinic space group P21/n with a=16.381(5), b=17.114(3),c=16.749(6) A,β=107. 04(3)°,V=4490(2)A3, Mr=2128.84,Z=2,Dc=1. 57 g/cm3,μ= 19. 6 cm-1,F(000)=2160. Final R=0.074(Rw=0.082) for 2662 unique reflections with I≥3σ(I). The V atom in the compound retains the tetrahedral geometry of the VS3O with S-V-S or S-V-O angles of 108.6(6)～110.3 (6)°.The cluster core [V2Cu6S6O2] of the compound can be regarded as two cluster cores [VCu3S3O] bonded by bondings of the Cu-Cu'(distances of 2.774(3)～2.707(5) A) and Cu-S (distances of 2.463(7)～2.396(9) A) with centrosymmetric. Atoms of the cluster core V2Cu6 form a distorted cube with the Cu Cu'or the V-Cu distances of 2. 774(3)～2. 707(5) A.
