The title compound C38H72N2PtS10(Mr=1072.74)crystallizes in triclinic system,space group P1 with cell constants a=11.994(4),b=18.117(7),c=11.855(6)A,α=95.55(4),β=99.14(3),γ=75.71(3)°,V=2460.0A3,Z=2 and Dc=1.45...The title compound C38H72N2PtS10(Mr=1072.74)crystallizes in triclinic system,space group P1 with cell constants a=11.994(4),b=18.117(7),c=11.855(6)A,α=95.55(4),β=99.14(3),γ=75.71(3)°,V=2460.0A3,Z=2 and Dc=1.45 gcm-3.The structure is solved by direct methods and refined by full-matrix least-squares technique to final R=0.046 and Rw=0.045 based on 5919 independent reflections with I≥3.0(I).The anion [Pt(C3S5)2]2-is approximately planar,of which the platinum-sulfur coordination polyhedron takes a square form with mean Pt-S bond length of 2.310(4)A.展开更多
The nickel(Ⅱ)complex [Ni(teta){N(CN)2}2] (teta = 5,7,7,12,14,14-hexamehyl-1,4, 8,11-tetraazacyclotetradecane) was synthesized and its structure has been determined by single- crystal X-ray diffraction. Crystal data: ...The nickel(Ⅱ)complex [Ni(teta){N(CN)2}2] (teta = 5,7,7,12,14,14-hexamehyl-1,4, 8,11-tetraazacyclotetradecane) was synthesized and its structure has been determined by single- crystal X-ray diffraction. Crystal data: C20H36N10Ni, monoclinic, space group P21/c, a = 9.632(2), b = 11.833(2), c = 10.613(2) ? b = 93.46(3), V = 1207.4(4) ?, Mr = 475.30, Z = 2, Dc = 1.307 g/cm3, F(000) = 508, m(MoKa) = 0.831 mm-1, R = 0.0446 and wR = 0.1274 for 2423 observed reflections with I > 2s(I). The center nickel ion is coordinated by six nitrogen atoms, four from the macrocyclic ligand teta and the other two from two dicyanamides. The dicyanamide is coordinated to the metal atoms as uni-dentate manner via nitrile nitrogen atom.展开更多
A new mixed-valence oxo-centered trinuclear manganese complex Mn3O(O2CPh)6 (Py)3 was prepared in pyridine solvent and its crystal structure has been determined. C57H45O13N3Mn3, Mr =1144. 81, trigonal, space group R3,...A new mixed-valence oxo-centered trinuclear manganese complex Mn3O(O2CPh)6 (Py)3 was prepared in pyridine solvent and its crystal structure has been determined. C57H45O13N3Mn3, Mr =1144. 81, trigonal, space group R3,(No.148), unit cell parameters(H cell): a=b=43. 605 (7), c=15. 756(4), V =25946(10),Z=18, Dc=1.32 g/cm￣3 , F(000) = 10566.The final values of R and Rw are 0. 098 and 0. 087 respectively for 3087 observed reflections with Ⅰ>4σ(Ⅰ). The distances of Mn(1)-O(1), Mn(2)-O(1) and Mn(3)-O(1) are 1.855(10),1. 817(8) and 2. 089 (8), respectively, indicating the title compound is a valence-trapped situation.展开更多
A new imidazolium compound, C15H17N4ClO4, was prepared from a flexible bidentate ligand of 1,3-di(imidazol-1-ylmethyl)-5-methylbenzene, and characterized by X-ray analysis. It is of orthorhombic, space group Pnma with...A new imidazolium compound, C15H17N4ClO4, was prepared from a flexible bidentate ligand of 1,3-di(imidazol-1-ylmethyl)-5-methylbenzene, and characterized by X-ray analysis. It is of orthorhombic, space group Pnma with a = 8.182(2), b = 12.874(3), c = 15.611(4) ? V = 1644.4(7) 3, Dc = 1.425 g/cm3, Z = 4, Mr = 352.78, m(MoKa) = 0.944 mm-1, F(000) = 736, S = 1.036, the final R = 0.0521 and wR = 0.1187 for 1128 observed reflections (I > 2s(I)). An infinite one-dimensional zigzag chain is formed by NH…N hydrogen bonding interactions between the imidazolium salt cations.展开更多
[Cu(C8H4F3O2S)2(C3H7NO)], Mr = 579. 0, monoclinic, P21/c, a = 9. 4851(6), b = 26. 6574(6), c=9.2619(6) A ,β=96.08(3)°, V = 2328.7A3, Z=4, Dc=1. 65gcm-3, μ(MoKa) = 7. 2cm-1, F (000) = 1172, MoKa radiation, final...[Cu(C8H4F3O2S)2(C3H7NO)], Mr = 579. 0, monoclinic, P21/c, a = 9. 4851(6), b = 26. 6574(6), c=9.2619(6) A ,β=96.08(3)°, V = 2328.7A3, Z=4, Dc=1. 65gcm-3, μ(MoKa) = 7. 2cm-1, F (000) = 1172, MoKa radiation, final R = 0. 074 and Rw = 0. 068 for 1841 reflections with I≥3σ(Ⅰ). The Cu(Ⅱ) atom is coordinated by five oxygen atoms, one of which from DMF is in the axial position, to form a square pyramidal geometry. That the thenoyl groups in the ligands take the cis-form around the Cu(Ⅱ) atom is explained by the hydrogen bonding effect.展开更多
[Ni((C6H11O)2PS2)·(C4H9NH2)4](C6H11O)2PS2,Mr-=938. 05, triclinic,P1,a=13. 513(6),b=16. 040 (7), c= 12. 891(6) A , α= 95. 66 (4),β= 90. 23(4),γ= 75. 46(3)°,V = 2691 A3,Z=2,Dc= 1. 16 g·cm3.μ=6. 07cm-1...[Ni((C6H11O)2PS2)·(C4H9NH2)4](C6H11O)2PS2,Mr-=938. 05, triclinic,P1,a=13. 513(6),b=16. 040 (7), c= 12. 891(6) A , α= 95. 66 (4),β= 90. 23(4),γ= 75. 46(3)°,V = 2691 A3,Z=2,Dc= 1. 16 g·cm3.μ=6. 07cm-1,MoKa radiation, λ=0. 71069 A ,F(000) = 1020,R=0. 100 for 4595 reflections with I≥3σ(I). The title compound molecule consists of a complex cation [Ni((C6H11O)2PS2)(C4H9-NH2)4]+ and a complex anion (C6H11O)2PS2- . The Ni (Ⅱ) atom in the cation is octahedrally coordinated by four nitrogen atoms from four w-butylamine ligands and two sulfur atoms from one (C6H11O)2PS2 group.展开更多
The title compound 2-chloro-4-nitro-N-(5-bromosalicylidene) aniline is preparedby condensation of 5-bromosalicylidehyde and 2-chloro-4-nitro-aniline. C_(13)H_8BrClN_2O_3, M_r=355.58, monoclinic space group P 2_1/n, a=...The title compound 2-chloro-4-nitro-N-(5-bromosalicylidene) aniline is preparedby condensation of 5-bromosalicylidehyde and 2-chloro-4-nitro-aniline. C_(13)H_8BrClN_2O_3, M_r=355.58, monoclinic space group P 2_1/n, a=7.4927 (7), b=16.389(5), c=11.013(5), β=98.2(6)°, V=1338.4, Z=4, D_c=1.764g.cm^(-3), MoK_a(λ=0.71073),μ=34. 569cm^(-1), F.(000)=704, room temperature,final R=0. 053, R_w=0. 057 for 1453 reflections with I≥3σ(I). A total of 2948 in-展开更多
A stable Pd(II) compound Pd(AETYF)Cl2CH2Cl2 (AETYF = 4?5?diaza-9? (4,5-bis(ethylthio)-1,3-dithiole-2-ylidene)-fluorene) has been synthesized and its crystal structure was determined by X-ray crystallography. The cryst...A stable Pd(II) compound Pd(AETYF)Cl2CH2Cl2 (AETYF = 4?5?diaza-9? (4,5-bis(ethylthio)-1,3-dithiole-2-ylidene)-fluorene) has been synthesized and its crystal structure was determined by X-ray crystallography. The crystal is of monoclinic, space group P21/c with a = 15.249(6), b = 8.619(3), c = 19.078(7) ? b = 106.932(8), C19H18Cl4N2PdS4, Mr = 650.79, V = 2398.6(16) 3, Z = 4, Dc = 1.802 g/cm3, F(000) = 1296, m = 1.579 mm-1, Npar = 268, the final R = 0.0538 and wR = 0.1282 for 5068 observed reflections with I > 2s(I). The crystal structure determi- nation shows that the atoms of the molecule, except two ethyl-groups, are conjugated in a quasi- plane and these molecules are further stacked or contacted via plane to plane or edge to edge p-p interactions, forming parallel molecular chains along the b axis.展开更多
A one dimensional bimetallic compound ｛〔CuCd(pba)(H 2O) 3〕·2H 2O｝ n in which pba was propylenebis (oxamic acid), was prepared. Crystal structure of the title compound was determined. It belongs to orthorhombi...A one dimensional bimetallic compound ｛〔CuCd(pba)(H 2O) 3〕·2H 2O｝ n in which pba was propylenebis (oxamic acid), was prepared. Crystal structure of the title compound was determined. It belongs to orthorhombic system, molecular formula CuCdC 7H 16 N 2O 11 , M r =480.17, space group Pnma(#62), a=12.953(2), b=21 626(6), c=5.253(3), V=1471(2) 3 and D x =2.17g/cm 3 for Z =4. The structure was solved by direct methods with final R =0.052 and R w =0.063 for 1055 observed reflections with I>3σ(I ). Two nitrogen atoms and two oxygen atoms from the oxamide and a water molecule coordinated to the Cu II ion forming a square pyramidal geometry. Four oxygen atoms from the oxamide and two water molecules coordinated to the Cd II ion forming an elongated octahedral geometry.展开更多
The title complex, tpyridine (tris (2-aminothylamine] copper (Ⅱ)diperchlorate, [Cu(C6H18N4) (C5H5N)] (ClO4),, crystallizes in the orthorhombic spacegroup Pnma with independent reflections with F>4(F). The coordin...The title complex, tpyridine (tris (2-aminothylamine] copper (Ⅱ)diperchlorate, [Cu(C6H18N4) (C5H5N)] (ClO4),, crystallizes in the orthorhombic spacegroup Pnma with independent reflections with F>4(F). The coordination geometry about the copper(Ⅱ) atom is a trigonal bipyramid with geometry parameter value of 0. 94. The cation has C, symmetry with the mirrorplane at Y=1/4.展开更多
Crystal structure of pyridine-2,6-dicarboxylate(dipc) vanadium complex:[(dipc)VO_2]_2( 4, 4'-bipyridine)·4H_2O(M_r=724.34) is monoclinic with space group C2/c and a=25.857(8),b=6.896(1),c=16.267(5),β=106.27(...Crystal structure of pyridine-2,6-dicarboxylate(dipc) vanadium complex:[(dipc)VO_2]_2( 4, 4'-bipyridine)·4H_2O(M_r=724.34) is monoclinic with space group C2/c and a=25.857(8),b=6.896(1),c=16.267(5),β=106.27(4)°,V=2784.62 D_c=1.73 g/cm￣3,F(000)=1472,Z=4.The structural solutions and refinements based on 1661 reflections (I>2σ(I))converged at R=0. 043.The coordinated number of vanadium atom is 5,the geometrical form of the five atoms are coordinated to the vanadium atom is a distorted tetragonal bipyramid of which the four coordinated atoms O(3),O(5),N(1) and O(2) make up the equatorial plane,while the other coordinated atom O(1) is to occupy the apex.展开更多
V31H22F12N6OP2Ru, Mr = 885.6. Monoclinic, space group P21/n, a=9. 444(4), b = 14.050(7), c=25. 88(1)(?), β=92. 64(4)°, V = 3429.79(?)3, Dc=1. 712gcm-3, F(000) = 1760, μ= 6. 376cm-1, Z = 4, R=0. 077, Rw = 0. 090...V31H22F12N6OP2Ru, Mr = 885.6. Monoclinic, space group P21/n, a=9. 444(4), b = 14.050(7), c=25. 88(1)(?), β=92. 64(4)°, V = 3429.79(?)3, Dc=1. 712gcm-3, F(000) = 1760, μ= 6. 376cm-1, Z = 4, R=0. 077, Rw = 0. 090. There are three different Ru -N bonds of 2. 03(?), 2. 08(?) and 2. 13(?), respectively, to the two bpy and diazafluoren-9-one ligands in the complex.展开更多
C30H30Cu4I2S4MoN6,Mr=1206, orthorhombic, Fdd2, a = 22. 511(4), b= 22.946(4), c=30. 742(6)(?), Z = 16, Dc = 2. 019g/cm3, V = 15879.4 (?)3, μ = 41. 884cm-1, F (000) = 9280. The final R factor is 0. 0279 for 1884 observ...C30H30Cu4I2S4MoN6,Mr=1206, orthorhombic, Fdd2, a = 22. 511(4), b= 22.946(4), c=30. 742(6)(?), Z = 16, Dc = 2. 019g/cm3, V = 15879.4 (?)3, μ = 41. 884cm-1, F (000) = 9280. The final R factor is 0. 0279 for 1884 observed reflections with I>3σ(I). Crystal structure analysis shows that the MoS4Cu4 aggregate is formed, each the four copper atoms is linked with two S atoms of the te-trahedral MoS42- core. The average distance between Mo and Cu atoms is 2. 678(?).展开更多
The imidazolate bridged heterotrinuclear complex [(NH3)5RhImZn(dien)-ImRh(NH3)5](ClO4)6·/4H2O,Mr= 1347. 56,was prepared and crystallized in the mono-clinic space group C2/c with unit cell constants, a = 32. 972 (...The imidazolate bridged heterotrinuclear complex [(NH3)5RhImZn(dien)-ImRh(NH3)5](ClO4)6·/4H2O,Mr= 1347. 56,was prepared and crystallized in the mono-clinic space group C2/c with unit cell constants, a = 32. 972 (4) , b = 9. 482 ( 1) , c = 15. 250(3) A ,β = 91. 26(1)°,V = 4766. 6A3 and Z=4. The structure was determined from 9043 independent reflections and refined to R=0. 049 for 3051 observed MoKa reflections. The Zn atom showed a distorted trigonal bipyramid coordination, being bonded to three nitrogen atoms of dien and two of imidazole. Each imidazole anion bridged one Zn atom and one Rh atom. The Rh atom was coordinated by six nitrogen atoms,one of which is from imidazole and the five others from NH3 forming a regular octahedral coordination.展开更多
Trans-[Cu(glyo)2(H2O)] nanoparticles with average diameters about 20—30 nm were prepared by one- step room temperature solid-state reaction. Trans-[Cu(glyo)2] nanorods with diameters ranging from 100 to 150 nm and le...Trans-[Cu(glyo)2(H2O)] nanoparticles with average diameters about 20—30 nm were prepared by one- step room temperature solid-state reaction. Trans-[Cu(glyo)2] nanorods with diameters ranging from 100 to 150 nm and lengths up to several ìm were also prepared by one-step room temperature solid-state reaction in the presence of a suitable nonionic surfactant PEG400. The chemical composi- tion and structural features of the products were investigated by elemental analyses, XRD, TG, SEM and TEM, respec- tively. The mechanisms of formation were also discussed.展开更多
文摘The title compound C38H72N2PtS10(Mr=1072.74)crystallizes in triclinic system,space group P1 with cell constants a=11.994(4),b=18.117(7),c=11.855(6)A,α=95.55(4),β=99.14(3),γ=75.71(3)°,V=2460.0A3,Z=2 and Dc=1.45 gcm-3.The structure is solved by direct methods and refined by full-matrix least-squares technique to final R=0.046 and Rw=0.045 based on 5919 independent reflections with I≥3.0(I).The anion [Pt(C3S5)2]2-is approximately planar,of which the platinum-sulfur coordination polyhedron takes a square form with mean Pt-S bond length of 2.310(4)A.
基金The project was supported by the funds of the Key Laboratory of Organic Syntheses of Jiangsu province(KJS01018) and Funds of Young Teacher of Suzhou University
文摘The nickel(Ⅱ)complex [Ni(teta){N(CN)2}2] (teta = 5,7,7,12,14,14-hexamehyl-1,4, 8,11-tetraazacyclotetradecane) was synthesized and its structure has been determined by single- crystal X-ray diffraction. Crystal data: C20H36N10Ni, monoclinic, space group P21/c, a = 9.632(2), b = 11.833(2), c = 10.613(2) ? b = 93.46(3), V = 1207.4(4) ?, Mr = 475.30, Z = 2, Dc = 1.307 g/cm3, F(000) = 508, m(MoKa) = 0.831 mm-1, R = 0.0446 and wR = 0.1274 for 2423 observed reflections with I > 2s(I). The center nickel ion is coordinated by six nitrogen atoms, four from the macrocyclic ligand teta and the other two from two dicyanamides. The dicyanamide is coordinated to the metal atoms as uni-dentate manner via nitrile nitrogen atom.
文摘A new mixed-valence oxo-centered trinuclear manganese complex Mn3O(O2CPh)6 (Py)3 was prepared in pyridine solvent and its crystal structure has been determined. C57H45O13N3Mn3, Mr =1144. 81, trigonal, space group R3,(No.148), unit cell parameters(H cell): a=b=43. 605 (7), c=15. 756(4), V =25946(10),Z=18, Dc=1.32 g/cm￣3 , F(000) = 10566.The final values of R and Rw are 0. 098 and 0. 087 respectively for 3087 observed reflections with Ⅰ>4σ(Ⅰ). The distances of Mn(1)-O(1), Mn(2)-O(1) and Mn(3)-O(1) are 1.855(10),1. 817(8) and 2. 089 (8), respectively, indicating the title compound is a valence-trapped situation.
基金the Natural Science Foundation of Jiangsu province (Grant No Bk2001031)
文摘A new imidazolium compound, C15H17N4ClO4, was prepared from a flexible bidentate ligand of 1,3-di(imidazol-1-ylmethyl)-5-methylbenzene, and characterized by X-ray analysis. It is of orthorhombic, space group Pnma with a = 8.182(2), b = 12.874(3), c = 15.611(4) ? V = 1644.4(7) 3, Dc = 1.425 g/cm3, Z = 4, Mr = 352.78, m(MoKa) = 0.944 mm-1, F(000) = 736, S = 1.036, the final R = 0.0521 and wR = 0.1187 for 1128 observed reflections (I > 2s(I)). An infinite one-dimensional zigzag chain is formed by NH…N hydrogen bonding interactions between the imidazolium salt cations.
文摘[Cu(C8H4F3O2S)2(C3H7NO)], Mr = 579. 0, monoclinic, P21/c, a = 9. 4851(6), b = 26. 6574(6), c=9.2619(6) A ,β=96.08(3)°, V = 2328.7A3, Z=4, Dc=1. 65gcm-3, μ(MoKa) = 7. 2cm-1, F (000) = 1172, MoKa radiation, final R = 0. 074 and Rw = 0. 068 for 1841 reflections with I≥3σ(Ⅰ). The Cu(Ⅱ) atom is coordinated by five oxygen atoms, one of which from DMF is in the axial position, to form a square pyramidal geometry. That the thenoyl groups in the ligands take the cis-form around the Cu(Ⅱ) atom is explained by the hydrogen bonding effect.
文摘[Ni((C6H11O)2PS2)·(C4H9NH2)4](C6H11O)2PS2,Mr-=938. 05, triclinic,P1,a=13. 513(6),b=16. 040 (7), c= 12. 891(6) A , α= 95. 66 (4),β= 90. 23(4),γ= 75. 46(3)°,V = 2691 A3,Z=2,Dc= 1. 16 g·cm3.μ=6. 07cm-1,MoKa radiation, λ=0. 71069 A ,F(000) = 1020,R=0. 100 for 4595 reflections with I≥3σ(I). The title compound molecule consists of a complex cation [Ni((C6H11O)2PS2)(C4H9-NH2)4]+ and a complex anion (C6H11O)2PS2- . The Ni (Ⅱ) atom in the cation is octahedrally coordinated by four nitrogen atoms from four w-butylamine ligands and two sulfur atoms from one (C6H11O)2PS2 group.
文摘The title compound 2-chloro-4-nitro-N-(5-bromosalicylidene) aniline is preparedby condensation of 5-bromosalicylidehyde and 2-chloro-4-nitro-aniline. C_(13)H_8BrClN_2O_3, M_r=355.58, monoclinic space group P 2_1/n, a=7.4927 (7), b=16.389(5), c=11.013(5), β=98.2(6)°, V=1338.4, Z=4, D_c=1.764g.cm^(-3), MoK_a(λ=0.71073),μ=34. 569cm^(-1), F.(000)=704, room temperature,final R=0. 053, R_w=0. 057 for 1453 reflections with I≥3σ(I). A total of 2948 in-
基金the National Natural Science Foundation of China (20071024 20371033) and Suzhou University
文摘A stable Pd(II) compound Pd(AETYF)Cl2CH2Cl2 (AETYF = 4?5?diaza-9? (4,5-bis(ethylthio)-1,3-dithiole-2-ylidene)-fluorene) has been synthesized and its crystal structure was determined by X-ray crystallography. The crystal is of monoclinic, space group P21/c with a = 15.249(6), b = 8.619(3), c = 19.078(7) ? b = 106.932(8), C19H18Cl4N2PdS4, Mr = 650.79, V = 2398.6(16) 3, Z = 4, Dc = 1.802 g/cm3, F(000) = 1296, m = 1.579 mm-1, Npar = 268, the final R = 0.0538 and wR = 0.1282 for 5068 observed reflections with I > 2s(I). The crystal structure determi- nation shows that the atoms of the molecule, except two ethyl-groups, are conjugated in a quasi- plane and these molecules are further stacked or contacted via plane to plane or edge to edge p-p interactions, forming parallel molecular chains along the b axis.
文摘A one dimensional bimetallic compound ｛〔CuCd(pba)(H 2O) 3〕·2H 2O｝ n in which pba was propylenebis (oxamic acid), was prepared. Crystal structure of the title compound was determined. It belongs to orthorhombic system, molecular formula CuCdC 7H 16 N 2O 11 , M r =480.17, space group Pnma(#62), a=12.953(2), b=21 626(6), c=5.253(3), V=1471(2) 3 and D x =2.17g/cm 3 for Z =4. The structure was solved by direct methods with final R =0.052 and R w =0.063 for 1055 observed reflections with I>3σ(I ). Two nitrogen atoms and two oxygen atoms from the oxamide and a water molecule coordinated to the Cu II ion forming a square pyramidal geometry. Four oxygen atoms from the oxamide and two water molecules coordinated to the Cd II ion forming an elongated octahedral geometry.
文摘The title complex, tpyridine (tris (2-aminothylamine] copper (Ⅱ)diperchlorate, [Cu(C6H18N4) (C5H5N)] (ClO4),, crystallizes in the orthorhombic spacegroup Pnma with independent reflections with F>4(F). The coordination geometry about the copper(Ⅱ) atom is a trigonal bipyramid with geometry parameter value of 0. 94. The cation has C, symmetry with the mirrorplane at Y=1/4.
文摘Crystal structure of pyridine-2,6-dicarboxylate(dipc) vanadium complex:[(dipc)VO_2]_2( 4, 4'-bipyridine)·4H_2O(M_r=724.34) is monoclinic with space group C2/c and a=25.857(8),b=6.896(1),c=16.267(5),β=106.27(4)°,V=2784.62 D_c=1.73 g/cm￣3,F(000)=1472,Z=4.The structural solutions and refinements based on 1661 reflections (I>2σ(I))converged at R=0. 043.The coordinated number of vanadium atom is 5,the geometrical form of the five atoms are coordinated to the vanadium atom is a distorted tetragonal bipyramid of which the four coordinated atoms O(3),O(5),N(1) and O(2) make up the equatorial plane,while the other coordinated atom O(1) is to occupy the apex.
文摘V31H22F12N6OP2Ru, Mr = 885.6. Monoclinic, space group P21/n, a=9. 444(4), b = 14.050(7), c=25. 88(1)(?), β=92. 64(4)°, V = 3429.79(?)3, Dc=1. 712gcm-3, F(000) = 1760, μ= 6. 376cm-1, Z = 4, R=0. 077, Rw = 0. 090. There are three different Ru -N bonds of 2. 03(?), 2. 08(?) and 2. 13(?), respectively, to the two bpy and diazafluoren-9-one ligands in the complex.
文摘C30H30Cu4I2S4MoN6,Mr=1206, orthorhombic, Fdd2, a = 22. 511(4), b= 22.946(4), c=30. 742(6)(?), Z = 16, Dc = 2. 019g/cm3, V = 15879.4 (?)3, μ = 41. 884cm-1, F (000) = 9280. The final R factor is 0. 0279 for 1884 observed reflections with I>3σ(I). Crystal structure analysis shows that the MoS4Cu4 aggregate is formed, each the four copper atoms is linked with two S atoms of the te-trahedral MoS42- core. The average distance between Mo and Cu atoms is 2. 678(?).
文摘The imidazolate bridged heterotrinuclear complex [(NH3)5RhImZn(dien)-ImRh(NH3)5](ClO4)6·/4H2O,Mr= 1347. 56,was prepared and crystallized in the mono-clinic space group C2/c with unit cell constants, a = 32. 972 (4) , b = 9. 482 ( 1) , c = 15. 250(3) A ,β = 91. 26(1)°,V = 4766. 6A3 and Z=4. The structure was determined from 9043 independent reflections and refined to R=0. 049 for 3051 observed MoKa reflections. The Zn atom showed a distorted trigonal bipyramid coordination, being bonded to three nitrogen atoms of dien and two of imidazole. Each imidazole anion bridged one Zn atom and one Rh atom. The Rh atom was coordinated by six nitrogen atoms,one of which is from imidazole and the five others from NH3 forming a regular octahedral coordination.
文摘Trans-[Cu(glyo)2(H2O)] nanoparticles with average diameters about 20—30 nm were prepared by one- step room temperature solid-state reaction. Trans-[Cu(glyo)2] nanorods with diameters ranging from 100 to 150 nm and lengths up to several ìm were also prepared by one-step room temperature solid-state reaction in the presence of a suitable nonionic surfactant PEG400. The chemical composi- tion and structural features of the products were investigated by elemental analyses, XRD, TG, SEM and TEM, respec- tively. The mechanisms of formation were also discussed.
