共查询到20条相似文献,搜索用时 31 毫秒
1.
S. P. Wang L. J. Xu Z. H. Gao R. F. Wang 《Russian Journal of Coordination Chemistry》2010,36(10):786-792
A terbium p-methyl benzoate complex with 1,10-phenanthroline, [Tb(p-MBA)3(Phen)]2 (p-MBA = p-methyl benzoate and Phen = 1,10-phenanthroline), has been prepared and structurally characterized by X-ray diffraction. It crystallizes in triclinic system, space group P \(\bar 1\) with a = 12.8064(12), b = 13.3589(12), c = 19.8277(19) Å, α = 91.668(2)°, β = 97.775(2)°, γ = 106.312(2)°, C72H58N4O12Tb2, M r = 1489.06, V = 3217.6(5) Å3, Z = 2, ρ c = 1.537 g/cm3, μ(MoK α) = 2.246 mm?1, F(000) = 1488, the final R = 0.0622 and wR = 0.0962 for 14128 independent reflections with R int = 0.0843. It consists of two types of crystallographically independent dimeric molecules [Tb(p-MBA)3(Phen)]2 noted as [Tb-1] and [Tb-2]. In the dimeric molecule [Tb-1], each Tb(III) is eight-coordinated with one Phen molecule, two bridging carboxylate groups, and two bidentate chelating carboxylate groups, while in [Tb-2] each Tb(III) is eight-coordinated with one Phen molecule, four bridging carboxylate groups, and one bidentate chelating carboxylate group. The title complex shows intense green luminescence under UV light at room temperature. 相似文献
2.
Yu. V. Kokunov Yu. E. Gorbunova V. V. Kovalev 《Russian Journal of Inorganic Chemistry》2010,55(10):1552-1558
The coordination polymers [AgPF6(Me4Pyz)2] (I) and [AgPF6(2,3-Et2Pyz)2] (II) were synthesized, and their structures were determined. Crystals of I are monoclinic, space group C2/c, a = 10.213(2) Å, b = 16.267(3) Å, c = 12.663(3) Å, β = 92.90(3)°, V = 2102.1(7) Å3, ρcalcd = 1.660 g/cm3, Z = 4. The structure of I is built of polymeric zigzag [Ag(C8H12N2)] ∞ + chains and octahedral [PF6] anions. The coordination polyhedron of the Ag+ ion is a flat triangle. Crystals of II are tetragonal, space group P \(\bar 4\)2(1)/c,a = b = 10.641(1) Å, c = 18.942(1) Å, V = 2144.6(2) Å3, ρcalcd = 1.627 g/cm3, Z = 4. In the structure of II, 2D cationic layers of fused square rings exist; the rings consist of four Ag+ cations linked by four bridging ligands of diethylpyrazine Et2Pyz. The coordination polyhedron of the Ag+ ion is an irregular four-vertex polyhedron. 相似文献
3.
The title compound (disodium dipotassium copper(II) tris-[molybdate (VI)]) is prepared by form melt and characterized by single crystal X-ray diffraction and UV-vis spectroscopy. It crystallizes in the triclinic space group P-1 with a = 7.4946(8) Å, b = 9.3428(9) Å, c = 9.3619(9) Å, α = 92.591(7)°, β = 105.247(9)°, γ = 105.496(9)°, V = 604.7 Å3, and Z = 2. Its structure is isotypic with that of Na4Mn(MoO4)3. It is formed by Cu2O10 distorted bi-octahedral dimers linked by two bridging bidentate Mo2O4 tetrahedra and, additionally, two monodentate Mo1O4 tetrahedra to form Cu2Mo4O20 units. These units are linked by the insertion of Mo3O4 tetrahedra to build infinite ribbons disposed along the c axis. All of these ribbons form a one-dimensional framework. Both K1 and K3 cations are located in the inversion center, and all the other atoms are at general positions. The structure model is supported by the bond valence sum (BVS) and charge distribution CHARDI methods. The Cu2+ cations adopt the [4+2] CuO6 Jahn-Teller distortion giving rise to an intense d–d transition in the UV-vis absorption spectra. 相似文献
4.
A. Yu. Ledneva N. G. Naumov A. V. Virovets S. Cordier Y. Molard 《Journal of Structural Chemistry》2012,53(1):132-137
The structures of three novel octahedral rhenium cluster compounds [Re6S8(CN)2(py)4]·H2O (1), [Re6S8(CN)2(4-Mepy)4] (2), [Re6S8(CN)2(4-Mepy)4]·4-Mepy (3) (py = pyridine, 4-Mepy = 4-methylpyridine) are determined by X-ray crystallography. Crystal data are: C2/m space group, a = 14.813(1) Å, b = 14.772(1) Å, c = 9.2122(6) Å, β = 119.085(2)°, V = 1761.7(2) Å3, d x = 3.318 g/cm3, R = 0.0585 (1); I41/amd space group, a = 16.0018(3) Å, c = 14.7186(5) Å, V = 3768.81(16) Å3, d x = 3.169 g/cm3, R = 0.0489 (2); P21/c space group, a = 9.0452(4) Å, b = 15.8065(7) Å, c = 15.2951(6) Å, β = 103.700(2)°, V = 2124.57(16) Å3, d x = 2.957 g/cm3, R = 0.0245 (3). Molecular cluster complexes interact via π-π stacking affording 3D frameworks in 1 and 2 and chains in 3. 相似文献
5.
S. P. Khranenko I. A. Baidina S. A. Gromilov A. V. Belyaev 《Journal of Structural Chemistry》2005,46(6):1060-1065
Powder and single crystal X-ray diffraction studies have been performed for anhydrous nitrate complexes Rb2[Pd(NO3)4] (I) and Cs2[Pd(NO3)4] (II). Crystal data for I: a = 7.843(1) Å, b = 7.970(1) Å, c = 9.725(1) Å; β = 100.39(1)°, V = 597.9(1) Å 3, space group P21/c, Z = 2, d calc = 2.918 g/cm3; for II: a = 10.309(2) Å, b = 10.426(2) Å, c = 11.839(2) Å; β = 108.17(3)°, V = 1209.0(4) Å3, space group P21/c, Z = 4, d calc = 3.408 g/cm3. The structures are formed by isolated [Pd(NO3)4]2? complex anions and alkali metal cations. The plane-square environment of the Pd atom is formed from the oxygen atoms of the monodentate nitrate groups. The geometrical characteristics of the complex anions are analyzed. Compound II has a short contact Pd...Cs 3.252 Å. 相似文献
6.
The crystal structure of bis(semicarbazido)copper(II) nitrate [Cu(NH2NHC(O)NH2)2](NO3)2 has been studied by X-ray diffraction. Monoclinic crystals, a = 6.835(2) Å, b = 7.733(2) Å, c = 10.320(3) Å, β = 105.701(3)°, V = 525.1(2) Å3, space group P21/c, Z = 2, d
msd = 2.136 g/cm3, μ(MoK
α) = 2.143 mm−1. The structure was solved with the program for automatic analysis of Patterson’s function and refined by full-matrix least
squares in an anisotropic approximation for all non-hydrogen atoms using 753 independent reflections; R
1 = 0.0203. The square environment of the Cu atom is formed from the amino nitrogen atoms of the hydrazine fragments and the
C=O oxygen atoms of the two semicarbazide bidentate molecules (Cu-N 1.928 Å, Cu-O 1.999 Å). The axial positions are occupied
by the O atoms of the NO
3
−
outer-spheric anions (Cu-O 2.505 Å). In the structure, the complex cations and the NO
3
−
anions are linked into a framework by N-H...O type hydrogen bonds.
Original Russian Text Copyright ? 2007 by G. V. Romanenko, Z. A. Savelieva, and S. V. Larionov
__________
Translated from Zhurnal Strukturnoi Khimii, Vol. 48, No. 2, pp. 370–373, March–April, 2007. 相似文献
7.
I. Ya. Zaitseva I. S. Kovaleva V. A. Fedorov 《Russian Journal of Inorganic Chemistry》2009,54(6):840-841
CsZn2Br5 crystals are studied by X-ray diffraction. The compound crystallizes in the monoclinic system with the unit cell parameters a = 6.8880(12) Å, b = 10.4703(19) Å, c = 6.5197(9) Å, β = 108.25°, V = 446.55 Å3, ρcalcd = 4.960 g/cm3. Refractive indices are n p = 1.640 and n p = 1.754. 相似文献
8.
A. A. Merkulov L. I. Isaenko V. M. Pashkov V. G. Mazur A. V. Virovets D. Yu. Naumov 《Journal of Structural Chemistry》2005,46(1):103-108
The KPb2Cl5 and KPb2Br5 crystals are monoclinic (P21/c) with a microtwinned structure. X-ray analysis of chloride resulted in the parameters a = 8.854(2) Å, b = 7.927(2) Å, c = 12.485(3) Å; β = 90.05(3)°, dcalc = 4.78(1) g/cm3 (STOE STADI4, MoKα, 2θmax = 80°), R1 = 0.0702 for 4094 F ≥ 4 σ(F) reflections. For bromide, a = 9.256(2) Å, b = 8.365(2) Å, c = 13.025(3) Å; β = 90.00(3)°, dcalc = 5.62(1) g/cm3 (Bruker P4, MoKα, 2θmax = 70°), R1 = 0.0692 for 3076 F ≥ 4 (F) reflections. 相似文献
9.
M. N. Sokolova N. A. Budantseva A. M. Fedoseev 《Russian Journal of Coordination Chemistry》2011,37(6):478-482
The U(VI) complex with cyanoacetic acid, [UO2(H2O)2(NCCH2COO)2] (I), was synthesized from an aqueous solution, and its X-ray diffraction analysis was carried out. The crystals are orthorhombic: space group Pca2 1, a = 25.9605(7) Å, b = 6.7634(2) Å, c = 6.3398(2) Å, V = 1113.15(6) Å3 at 100 K, and Z = 4. The coordination polyhedron of the uranium atom is a distorted pentagonal bipyramid. The cations UO 2 2+ are bound into infinite zigzag chains by the bridging carboxyl groups of one of the anions of cyanoacetic acid. The carboxyl oxygen atom of the second anion, which is not involved in coordination, and the nitrogen atoms of the cyano groups form hydrogen bonds with the coordination water molecules. The layer structure of the compound is formed through the hydrogen bonds. The absorption spectra in the visible and infrared ranges of the crystalline compound are measured and analyzed. 相似文献
10.
V. N. Krasil’nikov A. P. Tyutyunnik V. G. Zubkov I. F. Berger L. A. Perelyaeva I. V. Baklanova 《Russian Journal of Inorganic Chemistry》2010,55(9):1331-1338
Vanadium(V) complexes of general composition M3VO2(SO4)2 (M = Rb, Cs) were synthesized by a solid-state route. The individuality of the synthesized compounds was proved by X-ray and neutron diffraction, vibrational spectroscopy, and microscopic analysis. The X-ray diffraction patterns of M3VO2(SO4)2 were indexed to fit the monoclinic system (space group P2/c, Z = 4) with the following unit cell parameters: a = 11.6487(2) Å, b = 8.4469(2) Å, c = 12.1110(2) Å, β = 109.483(1)°, V = 1123.43 Å3 (Rb); a = 12.0546(3) Å b = 8.7706(2) Å, c = 12.6496(3) Å, β = 109.843(2)°, V = 1257.99 Å3 (Cs). In the crystal structure of M3VO2(SO4)2, [VO2(SO4)2]3? complex anions can be discerned in which the vanadium atom is surrounded by five oxygen atoms: two oxygen atoms form short terminal V–O bonds, and three oxygen atoms are from the two sulfato groups, one of which acts as a monodentate ligand and the other acts as a bidentate chelating ligand. 相似文献
11.
Novel complex salts [Au(en)2]Cl(ReO4)2 (I) and [Au(en)2](ReO4)3 (II), en = ethylenediamine, are obtained. Their crystal structures are determined by single crystal X-ray diffraction. Complex I crystallizes in the triclinic crystal system: a = 6.2172(7) Å, b = 7.1644(8) Å, c = 8.8829(8) Å, α = 96.605(4)°, β = 110.000(4)°, γ = 97.802(4)°, P-1 space group, Z = 1, d x = 3.905 g/cm3; complex II crystallizes in the monoclinic crystal system: a = 15.244(2) Å, b = 7.6809(8) Å, c = 9.3476(12) Å, β = 127.004(3)°, C2 space group, Z = 4, d x = 4.057 g/cm3. 相似文献
12.
E. A. Sankova L. A. Glinskaya T. E. Kokina R. F. Klevstova S. V. Larionov 《Journal of Structural Chemistry》2007,48(2):366-371
A paramagnetic (μef = 3.86 BM) complex Cr(i-Bu2PS2)3 (I) has been synthesized. Single crystals I were grown, and the crystal structure of the compound was determined from X-ray
diffraction data (X8 APEX diffractometer, MoK
α radiation, 4516 F
hkl
, R = 0.0604). Monoclinic crystals, space group P21/n, unit cell parameters a = 14.2665(5) Å, b = 11.4400(4) Å, c = 23.1299(8) Å, β = 90.245(1)°, V = 3775.0(2) Å3, Z = 4, d
calc = 1.196 g/cm3. The structure is based on discrete mononuclear molecules. The coordination polyhedron of the Cr atom is a distorted S6 octahedron formed from the S atoms of three cyclic bidentate ligands — i-Bu2PS
2
−
ions. Electron spectroscopy data correspond to the octahedral structure of the CrS6 chromophore.
Original Russian Text Copyright ? 2007 by E. A. Sankova, L. A. Glinskaya, T. E. Kokina, R. F. Klevstova, and S. V. Larionov
__________
Translated from Zhurnal Strukturnoi Khimii, Vol. 48, No. 2, pp. 374–378, March–April, 2007. 相似文献
13.
P. E. Plyusnin E. Yu. Semitut I. A. Baidina L. A. Sheludyakova S. V. Korenev 《Journal of Structural Chemistry》2009,50(3):479-484
The crystal structures of compounds from the series [M(NH3)5Cl](NO3)2, (M = Ir, Rh, Ru) were described. The compounds crystallized in the tetragonal crystal system, space group I4, Z = 2. Crystal data for [Ir(NH3)5Cl](NO3)2 (I): a = 7.6061(1) Å, b = 7.6061(1) Å, c = 10.4039(2) Å, V = 601.894(16) Å3, ρcalc = 2.410 g/cm3, R = 0.0087; [Rh(NH3)5Cl](NO3)2 (II): a = 7.5858(5) Å, b = 7.5858(5) Å, c = 10.41357(7) Å, V = 599.24(7) Å3, ρcalc = 1.926 g/cm3, R = 0.0255; [Ru(NH3)5Cl](NO3)2 (III): a = 7.5811(6) Å, b = 7.5811(6) Å, c = 10.5352(14) Å, V = 605.49(11) Å3, ρcalc = 1.896 g/cm3, R = 0.0266. The compounds were defined by IR spectroscopy and XRPA and thermal analyses. 相似文献
14.
The crystal structure of [Cu(En)2CrO4]n (En is ethylenediamine) is determined: a = 14.7359(4) Å, b = 9.8083(3) Å, c = 14.2664(4) Å, V = 2061.98(10) Å3, space group Cmce, Z = 8, dx = 1.931 g/cm3. It is demonstrated that the studied phase is isostructural with [Сu(Еn)2SO4]n. A pseudotetragonal copper atom coordination (Cu–N 2.0204 Å and 2.0244 Å, ∠N–Cu–N 84.73°) is completed to distorted octahedral by two oxygen atoms of chromate anions (Cu–O 2.433 Å and 2.380 Å). 相似文献
15.
K. V. Yusenko I. V. Korolkov S. A. Gromilov S. V. Korenev 《Journal of Structural Chemistry》2007,48(2):379-382
The crystal structure of [Os(NH3)5Cl][ReCl6] has been refined by X-ray powder analysis: a = 11.645(3) Å, b = 8.3788(2) Å, c = 15.277(4) Å, β = 91.029(6)°, V = 1490(1) Å3, d x = 3.163 g/cm3, space group P21/m, Z = 4. The thermolysis product of the salt in a hydrogen atmosphere is a solid substitution solution Os0.5Re0.5: a = 2.753(2) Å, c = 4.366(3) Å, space group P63/mmc; coherent scattering region (CSR) is ~230 Å. 相似文献
16.
Yu. V. Kokunov Yu. E. Gorbunova V. V. Kovalev 《Russian Journal of Inorganic Chemistry》2008,53(12):1885-1892
Coordination polymers [AgCF3CO2(2,3-Et2Pyz)](I)(2,3-Et2Pyz-C8H12N2) and [AgCF3CO2(Bpeta)] (II) (Bpeta is 4′4-bipyridylethane, C12H12N2) are synthesized. Their structures are determined. The crystals of compound I are monoclinic, space group P2(1)/n, a = 7.185(1), b = 14.754(1), c = 12.317(1)Å, β = 97.09(1)°, V = 1295.7(2) Å3, ρcalcd = 1.831 g/cm3, Z = 4. Structure I consists of infinite chains of doubled polymeric chains joined by silver carboxylate dimers [[Ag2(CF3CO2)2(Et2Pyz)2]∞. The coordination polyhedron of Ag+ is a distorted tetrahedron. The crystals of compound II are orthorhombic, space group Pbca, a = 13.555(3), b = 13.991(3), c = 16.449(3) Å, V = 3119.5(11) Å3, ρcalcd = 1.725 g/cm3, Z = 8. Doubled polymeric chains with the Ag…Ag bond (3.16 Å) are also formed in structure II. Supramolecular layers are formed in the structure due to the weak π-π-stacking interaction between the aromatic groups of chains. The CF3CO 2 ? anion is weakly bound to Ag+ (Ag-Oavg 2.790 Å). 相似文献
17.
R. F. Klevtsova E. A. Sankova L. A. Glinskaya T. E. Kokina S. V. Larionov 《Journal of Structural Chemistry》2007,48(5):928-937
A chelate compound Pb[(iso-C4H9)2PS2]2 is synthesized. Using X-ray diffraction data, the crystal structures of two modifications of this compound are determined (X8 APEX diffractometer, MoK α radiation, 14169 F hkl , R = 0.0480 for the low temperature α-form and 6261 F hkl , R = 0.0387 for the β-form studied at ambient temperature). The crystals are triclinic: a = 11.047(2) Å, b = 14.486(3) Å, c = 32.048(6) Å; α = 91.30(3)°, β = 99.73(3)°, γ = 101.61(3)°, V = 4942.9(17) Å3, Z = 8, ρcalc = 1.682 g/cm3 (α-modification) and a = 11.2124(5) Å, b = 14.6989(7) Å, c = 17.1644(6) Å; α = 109.393(1)°, β = 94.989(2)°, γ = 101.649(1)°, V = 2576.83(19) Å3, Z = 4, ρcalc = 1.613 g/cm3 (β-modification), space group \(P\bar 1\) for both polymorphs. The structures are molecular, coordination cores of PbS4 are tetragonal pyramids with Pb atoms in the vertices and S atoms in the base. In both structures intermolecular Pb...S contacts yield supramolecular ensembles comprising by four molecules, where PbS4+2 cores form planar aggregates of edge-sharing octahedra. The ensembles are joined by weak intermolecular S...S interactions resulting in the development of polymeric chains along the a axis. 相似文献
18.
Yu. V. Kokunov V. V. Kovalev Yu. E. Gorbunova 《Russian Journal of Inorganic Chemistry》2008,53(12):1893-1897
The [Ag(Bpp)](CF3CO2) complex (Bpp is 1,3-bis(4-pyridyl)propane, C13H14N2) is synthesized, and its structure is determined. The crystals are monoclinic, space group C2/c, a = 26.169(5), b = 10.521(2), c = 12.906(3) Å, β = 117.99(3)°, V = 3137.7(11) Å3, ρcalcd = 1.775 g/cm3, Z = 8. The structure contains double helices of-Ag-Bpp-Ag-Bpp-cationic chains with a helix period of 21.042 Å. The Ag…Ag distance between a pair of silver atoms from different chains in the helix is 3.201 Å, and the distance between the adjacent helices is 3.279 Å. The silver atom is linked with two bridging nitrogen atoms of two Bpp ligands in an almost linear coordination: Ag-Navg 2.142 Å; NagN, 171.3(4)°. The CF3C 2 ? anion has a weak contact with the silver ion (Ag…O 2.62(2) Å). 相似文献
19.
B. G. Bazarov R. F. Klevtsova A. E. Sarapulova K. N. Fedorov L. A. Glinskaya Zh. G. Bazarova 《Journal of Structural Chemistry》2005,46(4):756-760
Single crystals of triple molybdate of composition 5:1:3 K5Pb0.5Hf1.5(MoO4)6 have been grown and their crystal structure has been solved from X-ray diffraction data (an automated diffractometer X8 APEX, MoK α -radiation, 2173 F(hkl), R = 0.0321). Trigonal unit cell parameters are: a = b = 10.739(2) Å, c = 37.933(9) Å; V = 3789(1) Å3, Z = 6, ρcalc = 4.014 g/cm3, space group \(R\bar 3\). Three-dimensional mixed framework of the structure is formed by two types of MoO4 tetrahedra and Pb and Hf octahedra linking via common O-vertices. Potassium atoms of three types occupy large vacancies in the framework. 相似文献
20.
A. I. Stash V. V. Levashova S. A. Lebedev Yu. G. Hoskov A. A. Mal’kov I. P. Romm 《Russian Journal of Coordination Chemistry》2009,35(2):136-141
The structures of the Pd4(SBu)4(OAc)4 (I) and Pd6 (SBu)12 (II) palladium clusters are determined by the X-ray diffraction method. For cluster I: a = 8.650(2), b = 12.314(2), c = 17.659(4) Å, α = 78.03(3)°, β = 86.71(2)°, γ = 78.13(3)°, V = 1800.8(7) Å3, ρcalcd = 1.878 g/cm3, space group P \(\bar 1\), Z = 4, N = 3403, R = 0.0468; for structure II: a = 10.748(2), b = 12.840(3), c = 15.233(3) Å, α = 65.31(3)°, β = 70.10(3)°, γ = 72.91(3)°, V = 1767.4(6) Å3, ρ calcd = 1.605 g/cm3, space group P \(\bar 1\), Z = 1, N = 3498, R = 0.0729. In cluster I, four Pd atoms form a planar cycle. The neighboring Pd atoms are bound by two acetate or two mercaptide bridges (Pd…Pd 2.95–3.23 Å, Pd…Pd angles 87.15°–92.85°). In cluster II, the Pd atoms form a planar six-membered cycle with Pd···Pd distances of 3.09–3.14 Å, the PdPdPd angles being 118.95°–120.80°. The Pd atoms are linked in pairs by two mercaptide bridges. The formation of clusters I and II in solution is proved by IR spectroscopy and calorimetry. Analogous clusters are formed in solution upon the reaction of palladium(II) diacetate with thiophenol. 相似文献