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1.
Abstract A novel thiazole-based iridium (III) complex (iridium(III)bis(2-p-tolyl-benzothiazolato-N,C2)(acetylacetonate)) has been prepared and fully characterized by EA, IR, 1H-NMR and MS. The molecular structure of the complex has been determined by single crystal X-ray diffraction analysis. The
iridium (III) center adopts a distorted octahedral geometry with cis-O–O, cis-C–C, and trans-N–N chelate disposition. The complex crystallizes in the orthorhombic Pbca space group with cell parameters a = 10.1388(7) ?, b = 18.3565(12) ?, c = 31.021(2) ?, α = β = γ = 90 ° and Z = 8. The electronic absorption and emission spectra of this complex have been investigated.
Index Abstract A novel thiazole-based phosphorescent iridium (III) complex (iridium(III) bis (2-p-tolyl-benzothiazolato-N,C2)(acetylacetonate)) has been prepared and fully characterized by EA, IR, 1H-NMR, MS and X-ray diffraction analysis. 相似文献
2.
Abstract The molecular structure of trans-dichlorodioxobis(triphenylphosphate) molybdenum(VI), MoO2Cl2[OP(OPh)3]2 has been determined. Crystal data: Monoclinic, Pn, a = 11.767(2), b = 10.341(2), c = 15.682(3) ?, β = 92.27(3)°, V = 1906.8(7) ?−3, Z = 2. Trans-dichlorodioxobis(triphenylphosphate)molybdenum(VI) was obtained by the reaction of molybdenum oxide, HCl and triphenylphosphate
and was characterized by elemental analysis, IR, and 1H-NMR spectroscopy.
Index Abstract
Trans-dichlorodioxobis(triphenylphosphate)molybdenum(VI), MoO2Cl2[OP(OPh)3]2
V. Huch1, R. Kumar2, S. Mathur1, R. Ratnani2
The immediate environment around Mo is distorted octahedral with two cis-oxygen atoms and two trans-chlorine atoms along with two triphenylphosphate moieties.
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3.
K. G. Sanjaya Ranmohotti Wendy L. Queen J. Palmer West Don VanDerveer Shiou-Jyh Hwu 《Journal of chemical crystallography》2009,39(4):303-307
Abstract A new barium chlorovanadate, Ba5(V2O7)2Cl2, was isolated by a high-temperature (850 °C) reaction employing a CsCl/RbCl flux. The structure was determined by single
crystal X-ray diffraction methods. This compound crystallizes in an orthorhombic crystal system, Pmmn (No. 59), with a = 11.558(2) ?, b = 15.164(3) ?, c = 10.023(2) ?, Z = 4 and V = 1756.7(6) ?3. The structure of Ba5(V2O7)2Cl2 was determined by full-matrix, least-squares methods with R
1 = 0.0398, wR
2 = 0.1069 and GOF = 1.048 for all data. This new structure can be described as a composite lattice made up of mixed covalent
and ionic moities. The extended framework is orchestrated by stacked [Ba(V2O7)Cl]3− slabs that are interconnected by Ba2+ cations through Ba–O bonds to the [V2O7] units. The Ba2+ and Cl- ions form BN-type “[BaCl]” sheets with pseudo-hexagonal windows that are centered by [V2O7]4− pyrovanadate units.
Graphical Abstract The structure of a new chlorovanadate, Ba5(V2O7)2Cl2, exhibits an interesting BN-type salt lattice that consists of an extended [BaCl] sheet containing pseudo-hexagonal windows
that are centered by [V2O7] pyrovanadate units.
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4.
Abstract
The title complex triaqua (3-hydroxy-5-hydroxymethyl-2-methylpyridine-4-carboxaldehyde-3-methylisothiosemicarbazone-k3,O3,N7,N10)Ni(II) nitrate ([Ni(PLITSC)(H2O)3](NO3)2, 1) represents the second transition metal complex incorporating an isothiosemicarbazide-pyridoxal based Schiff base that has been crystallographically characterized. Complex 1 crystallizes in a P21/n space group, with lattice constants: a = 11.2254(1) ?, b = 12.9941(2) ?, c = 12.8663(2), β = 96,7713(5)°, V = 1863.64(4) ?3, Z = 4, F(000) = 1016, R 1 = 0.0681, wR 2 = 0.1201. The central Ni(II) cation is found in a six-coordinate octahedral geometry formed by the tridentate Schiff base ligand PLITSC and three water molecules. The identity of 1 was further confirmed by elemental analysis, IR spectra, and conductometric and magnetochemical measurements. 相似文献5.
Robert T. Stibrany 《Journal of chemical crystallography》2009,39(10):719-722
Abstract Two structures containing pseudo-tetrahedral Cu(II)N2Cl2 coordination complexes are reported. The first molecular structure (A) of the compound, 1,1′bis(1-ethylbenzimidazol-2-yl)propane
copper(II) dichloride (triEtBBIM)Cu(II)Cl2, 1, is reported. The complex crystallized in the triclinic space group P-1 with a = 8.616(3) ?, b = 9.302(3) ?, c = 14.314(4) ?, α = 85.613(6)°, β = 85.170(6)°, γ = 66.117(6)° and V = 1044.1(5) ?3 with Z = 2. The second structure (B) contains 1 and (3,3′bis(1-ethylbenzimidazol-2-yl)pentane) copper(II) dichloride (tetEtBBIM)Cu(II)Cl2, 2, both of which, cocrystallize in an equal molar ratio with a nitromethane solvate molecule. The complex crystallized in the
monoclinic space group P21/c with a = 18.876(4) ?, b = 14.975(3) ?, c = 18.344(4) ?, β = 116.75(3)°, and V = 4630.3(16) ?3 with Z = 4. The cocrystallization of such discrete complexes has been coined a chemical Janus.
Graphical Abstract The title complexes contain pseudo-tetrahedral Cu(II)N2Cl2 coordination. One of the structures is the result of an unusual cocrystallization, in which two different discrete Cu(II)
molecules cocrystallize in an equimolar ratio with a nitromethane solvate molecule.
相似文献
6.
Xu Hao-Long 《Journal of chemical crystallography》2009,39(4):299-302
Abstract
One trinuclear di-n-butyltin(IV) complex with salicylaldoxime (o-HON=CHC6H4OH=HONZOH), (Bu2Sn)(Bu2SnO)(Bu2SnOH)(ONZOH)(ONZO), has been synthesized and characterized by elemental analyses, IR spectrum, and single crystal X-ray diffraction.
This complex is a small cluster displaying two unequivalent salicylaldoximate with one seven-coordinate pentagonal–bipyramidal
tin atom linked two five-coordinate trigonal–bipyramidal tin atoms via a network of oxygen atoms by Sn–O–Sn bridges. The hydrogen
bonds (o-HON=CHC6H4–O…H–O) are observed in the complex. These hydrogen bonds include intramolecular hydrogen bonds and intermolecular hydrogen
bonds. (Bu2Sn)(Bu2SnO)(Bu2SnOH)(ONZOH)(ONZO) belongs to monoclinic: space group P21/n, with a = 12.2307(15) ?, b = 17.361(2) ?, c = 20.976(3) ?, β = 94.424(2)°, V = 4440.5(10) ?3, Z = 4, D
c
= 1.500 g/cm3, μ(MoKα) = 1.715 mm−1, F(000) = 2024, and final R
1 = 0.0426, wR
2 = 0.1064 for observed reflections 7779(I > 2σ(I)).
Index abstract The title compound, di-n-butyltin(IV) complex with salicylaldoxime, was synthesized and its crystal structure determined. Single crystal X-ray diffraction
analysis reveals that the molecular structure of the title compound is trinuclear. The complex is a small cluster displaying
two unequivalent salicylaldoximate with one seven-coordinate pentagonal–bipyramidal tin atom linked two five-coordinate trigonal–bipyramidal
tin atoms via a network of oxygen atoms by Sn–O–Sn bridges.
相似文献
7.
Abstract
A novel quaternary borate, Na2.18K0.82SrB5O10, has been prepared by high-temperature solution reaction below 800 °C. Single-crystal XRD analyses showed that it crystallizes in the triclinic P[`1] P\bar{1} group with a = 7.3900(15) ?, b = 7.6490(15) ?, c = 9.773(2) ?, α = 79.31(2)°, β = 70.85(2)°, γ = 62.09(1)°, Z = 2. The basic structural unit in Na2.18K0.82SrB5O10 is a double ring [B5O10]5− composed of one BO4 tetrahedron and four BO3 triangles. The [B5O10]5− groups are arranged around crystallographic centers of symmetry to form [B10O20]10− columns that are held together by Na+, K+/Na+, and Sr2+ cations via electrostatic interactions. The IR spectrum further confirmed the presence of both BO3 and BO4 groups. UV–vis diffuse reflectance spectrum showed a band gap of about 3.80 eV. Solid-state fluorescence spectrum exhibited the maximum emission peak at around 337.6 nm. 相似文献8.
Abstract The structure of [Fe3O(O2CCH2OMe)6(H2O)3][FeCl4] · 2.5H2O has been determined. The three iron atoms and the μ3-oxo are coplanar. Each carboxylic ligand is bidentate and links two iron atoms in the cluster. The clusters are linked by
intra-trimer hydrogen bonding to form a zigzag motif that forms sheets via hydrogen bonding involving disordered waters of
hydration. The [FeCl4]− anion is intercalated between the hydrogen-bonded sheets. Crystal data: space group P21/n, a = 10.276(2), b = 22.793(5), c = 17.091(3) ?, β = 96.66(3)°, V = 3976(1) ?3, Z = 4, R = 0.0837, wR
2 = 0.1836.
Graphical Abstract The structure of [Fe3O(O2CCH2OMe)6(H2O)3][FeCl4] · 2.5H2O has been determined in which the clusters are linked by intra-trimer hydrogen bonding to form a zigzag motif that forms
sheets via hydrogen bonding involving disordered waters of hydration.
相似文献
9.
Irena Ćaleta Dominik Cinčić Grace Karminski-Zamola Branko Kaitner 《Journal of chemical crystallography》2008,38(10):775-780
Abstract Two novel benzothiazoles 2-chloro-N-(benzothiazol-2-yl)benzamide (1) and 2-chloro-N-(6-cyanobenzothiazol-2-yl)benzamide (2) were obtained in multistep synthesis. They were characterised by means of IR, 1H- and 13C-NMR spectroscopy and also by single-crystal X-ray diffraction. The compound 1 crystallises with triclinic space group P
, a = 9.5923(8) ?, b = 9.8583(8) ?, c = 13.8962(10) ?, α = 89.162(6)°, β = 77.741(7)°, γ = 80.064(7)°, V = 1264.5(2) ?3, Z = 4 and compound 2 crystallises as methanol solvate with monoclinic space group P 21/n, a = 7.5093(9) ?, b = 13.0211(14) ?, c = 16.032(2) ?, β = 92.717(10)°, V = 1565.9(3) ?3, Z = 4. Both crystal structures consist of discrete dimers connected into a three-dimensional network by intermolecular C–H···O
and C–H···X (X = Cl or S) hydrogen bonds and by face-to-face π–π stacking interactions.
Index Abstract The synthesis and structure of two novel N-(benzothiazol-2-yl)benzamides. Irena Ćaleta, Dominik Cinčić, GraceKarminski-Zamola and Branko Kaitner. Hydrogen bonds and
π–π interactions in N-(benzothiazol-2-yl)benzamides N-(benzothiazol-2-yl)benzamides.
相似文献
10.
Abstract The zinc(II) complex with 2-(2-hydroxyphenyl)benzimidazole, namely [Zn(2-(2-hydroxyphenyl)benzimidazolate)2]·C2H5OH (1 · C2H5OH) has been synthesized and characterized by X-ray crystallography and photoluminescent analysis. The complex crystallizes
in monoclinic space group P21/c with cell parameters a = 10.156(1) ?, b = 25.771(3) ?, c = 9.674(1) ?, α = 90°, β = 103.641(2)°, γ = 90°, Z = 4, V = 2460.4(4) ?3. The central Zn(II) is four-coordinate and has a tetrahedral geometry. The steady-state and time-resolved photoluminescent
spectra for the title compound have also been studied. The emission property can be ascribed to ligand-centered charge-transfer
transition (LCCT) with π → π* property.
Index Abstract
A new co-crystal of Zn(II) complex of 2-(2-hydroxylphenyl)benzimidazole with ethanol solvate has been prepared, characterized
by X-ray crystallography and fluorescent studies.
相似文献
11.
Jian-Jun Zhang Jochen Glaser Sergio Aarón Gamboa Abdessadek Lachgar 《Journal of chemical crystallography》2009,39(1):1-8
Abstract The preparation, structures, and characterization of two new compounds containing octahedral niobium cyanochloride clusters
as building units and (Et4N)+ as cation are reported. The reaction between Nb6Cl14 · 8H2O, KCN and (Et4N)Cl led to the formation of (Et4N)4[Nb6Cl12(CN)6] · 2.67H2O (1) which crystallizes in triclinic P-1 space group (No. 2) with a = 12.552(2), b = 12.818(2), c = 12.919(2) ?, α = 105.157(3)°, β = 104.188(3)°, γ = 117.390(2)°, V = 1611.7(5) ?3 and Z = 1. 1 has a 2D hydrogen-bonded layer structure based on [Nb6Cl12(CN)6]4−
units connected through hydrogen bonding between cyanide ligands and solvent water molecules. In the presence of large excess
of K+ ions, similar reaction leads to formation of K2(Et4N)2[Nb6Cl12(CN)6] (2) which crystallizes in the tetragonal I4/m space group (No. 87) with a = b = 10.9597(3), c = 19.178(1) ?, V = 2303.6(2) ?3 and Z = 2. Its 3D structure is based on [Nb6Cl12]2+ and [K2]2+ nodes bridged by cyanide ligands to form an expanded Prussian blue type framework with (Et4N)+ acting as charge compensating ions.
Index Abstract An expanded Prussian blue type 3D framework based on hexanuclear {Nb6} and dinuclear {K2} units which are bridged by cyanide linker was synthesized and characterized.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. 相似文献
12.
Jeongho Yeon Sang-Hwan Kim P. Shiv Halasyamani 《Journal of chemical crystallography》2011,41(3):328-331
Abstract
A new quinternary oxide, NaTl3Cu4Te2O12, has been synthesized and characterized by single crystal X-ray diffraction. The reported material was synthesized by hydrothermal techniques using TlNO3, CuO, TeO2, and NaOH as reagents. The material exhibits a two-dimensional layered structure consisting of edge-shared CuO6 and TeO6 polyhedra separated by Na+ and Tl+ cations. NaTl3Cu4Te2O12 crystallizes in space group C2/m with a = 12.9800(17) ?, b = 9.3455(12) ?, c = 5.2335(7) ?, β = 104.276(2)°, V = 615.24(14) ?3, and Z = 2. 相似文献13.
Debra D. Dolliver Smitty Smith David B. Delatte Kavi D. Patel Tiffany E. Thomas Julie Chagnard James E. Johnson Diana C. Canseco Frank R. Fronczek Clinton D. Bryan JoAnn R. Muller Jeffrey E. Rowe Artie S. McKim 《Journal of chemical crystallography》2007,37(12):837-846
Abstract The first general synthesis of (Z)-O-alkylbenzohydroximidoyl iodides [ArC(I)=NOR] is reported. X-ray crystallographic structures of two of these compounds confirm
that they are in the Z-configuration: p-NO2ArC(I)=NOCH3 crystallizes in space group Pnma with lattice constants a = 12.682(2) ?, b = 6.5217(15) ?, and c = 11.755(2) ?, and p-ClArC(I)=NOCH3 crystallizes in space group P21/n with lattice constants a = 15.670(4) ?, b = 5.742(4) ?, and c = 27.156(7) ? and beta angle 102.71(2). Their structures are compared to other O-alkylbenzohydroximoyl halides including p-NO2ArC(F)=NOCH3 which crystallizes in space group P21/c with lattice constants a = 3.8475(10) ?, b = 22.501(5) ?, and c = 10.088(2) ? and beta angle 91.130(11). The synthesis of two additional compounds containing the N-alkoxyimine moiety {methyl (Z)-O-methyl-4-nitrobenzothiohydroximate [p-NO2ArC(SCH3)=NOCH3] which crystallizes in space group P21/n with lattice constants a = 11.8046(15) ?, b = 7.0774(10) ?, and c = 12.2741(15) ? and beta angle 100.401(9) and (Z)-O-methyl-4-nitrobenzohydroximoyl azide [p-NO2ArC(N3)=NOCH3] which crystallizes in space group P21/c with lattice constants a = 11.753(2) ?, b = 11.310(3) ?, and c = 7.351(2) ? and beta angle 103.805(15) are also reported. Their structures are compared to (Z)-ethyl benzohydroximate [PhC(OEt)=NOH] and (Z)-O-methyl-4-nitrobenzohydroximoyl cyanide [p-NO2ArC(CN)=NOCH3] respectively. Characterizations include spectrometric identifications employing IR, 1H-NMR, 13C-NMR and mass spectrometry.
Index Abstract X-ray structures of several N-alkoxyimines, including the newly synthesized N-alkoxyimidoyl iodides and azide, have been performed, and these structures unambiguously show the geometric configuration
(E vs. Z) of these compounds.
相似文献
Debra D. DolliverEmail: |
14.
Louis H. A. Prins Armand de Vries Mino R. Caira Douglas W. Oliver Sandra van Dyk Sarel F. Malan 《Journal of chemical crystallography》2008,38(9):705-709
Abstract Polycyclic hydrocarbon compounds exhibit a wide variety of biological activities, ranging from antiviral to Parkinson’s disease.
Several structures such as the adamantanes have reached clinical status and are used therapeutically to treat, amongst others,
neurodegenerative disorders such as Alzheimer’s. Polycyclics have also been utilised as carrier molecules to facilitate entry
of drugs into the brain. The synthesis, molecular and crystal structure of a new polycyclic compound, 3-hydroxy-4-aza-8-oxoheptacyclo[9.4.1.02,10.03,14.04,9.09,13.012,15]tetradecane, are reported. NMR spectroscopy was applied for structure elucidation of the novel compound and a rearrangement
mechanism is proposed for its formation. This compound crystallises in the orthorhombic system, space group Pbca (no. 61). The unit cell parameters are: a = 12.3763 (7), b = 11.6597 (6), c = 15.0539 (8) ?,
V = 2172.3 (2) ?3
, and Z = 8 molecules in the unit cell. The reported structure was confirmed by X-ray analysis, which showed that the title molecules
associate into centrosymmetric dimers via N–H···O hydrogen bonding.
Index Abstract The synthesis and structure of a new polycyclic compound, 3-hydroxy-4-aza-8-oxoheptacyclo[9.4.1.02,10.03,14.04,9.09,13.012,15]tetradecane, are reported in this article.
相似文献
15.
Wesley H. Monillas Glenn P. A. Yap Klaus H. Theopold 《Journal of chemical crystallography》2009,39(1):73-77
Abstract A series of complexes of the form [bis(2,6-diisopropylphenyl)pentane-2,4-ketiminato](iodo)(solvent) chromium were synthesized and structurally characterized (solvent = tetrahydrofuran,
acetonitrile, α-picoline). The tetrahydrofuran adduct crystallized in the P21/n space group with the crystal cell parameters a = 17.628(6) ?, b = 10.218(3) ?, c = 20.646(7) ?, β = 109.209(4)°, V = 3512(2) ?3 and Z = 4. The acetonitrile adduct crystallized in the P21/c space group with the crystal cell parameters a = 16.104(7) ?, b = 11.965(5) ?, c = 18.201(8) ?, β = 116.091(6)°, V = 3150(2) ?3 and Z = 4. The α-picoline adduct crystallized in the C2/c space group with the crystal cell parameters a = 39.982(9) ?, b = 11.637(2) ?, c = 16.560(4) ?, β = 108.085(4)°, V = 7325(3) ?3 and Z = 8. For each compound, the coordination around each chromium center is square planar with varying degrees of distortion.
Graphical Abstract A series of Cr(II) complexes of the form LCrI(S) (where L = nacnac = β-diketiminate; S = solvent) were synthesized and structurally characterized.
相似文献
16.
Shu-Lin Ma Shi Ren Yue Ma Shi-Ping Yan Dai-Zheng Liao 《Journal of chemical crystallography》2010,40(11):1011-1015
Abstract
A mononuclear fragment [Cu(L)Cl]ClO4 (1) and a cyano-bridged CuII–NiII binuclear complex [CuL][Ni(CN)4]·0.25H2O (2) (L = 1,3,6,8,11,14-hexaazatricyclo[12.2.1.18,11]-octadecane), have been prepared and characterized. X-ray single crystal analyses indicate that the both complexes crystallize in the monoclinic crystalline system. The complex of 1 in P1n1 space group with unit cell constants a = 6.1176(6) ?, b = 11.9147(10) ?, c = 12.2041(12) ?, β = 98.816(5)° and 2 in the P21/n space group with unit cell constants a = 8.1419(13) ?, b = 14.695(2) ?, c = 16.863(3) ?, β = 98.375(2)° have been revealed. The complex 2 assumes a binuclear structure in which the nickel(II) ion is in a square planar environment and the copper(II) is in a square-prism geometry environment. 相似文献17.
Abstract The complex, [Mn6O2(OOCCMe3)10(HOOCCMe3)3(py)], has a hexanuclear structure with a Mn6O2 core. This complex crystallizes in the monoclinic space group P21/n with a = 17.757(5) ?, b = 27.413(5) ?, c = 22.348(5) ?, β = 90.233(5)°, V = 9,040(4) ?3 and Z = 4. It contains a [Mn6O2]10+ core that can be described as two edge-sharing Mn4 tetrahedra at the centre of each of which tetrahedron lies a μ4-O2− ion. All Mn atoms are six-coordinate and possess distorted octahedral geometry. Mn4 exhibits butterfly arrangement with both μ4-O atoms on the same side of the molecule. The complex is mixed-valence , and the MnIII centers are assigned as the two central metal ions bridged by two O2− ions.
Index abstract The complex, [Mn6O2(OOCCMe3)10(HOOCCMe3)3(py)], has a hexanuclear structure with a Mn6O2 core. This complex crystallizes in the monoclinic space group P21/n with a = 17.757(5) ?, b = 27.413(5) ?, c = 22.348(5) ?, β = 90.233(5)°, V = 9040(4) ?3 and Z = 4. It contains a [Mn6O2]10+ core that can be described as two edge-sharing Mn4 tetrahedra at the centre of each of which tetrahedron lies a μ4-O2− ion. All Mn atoms are six-coordinate and possess distorted octahedral geometry. Mn4 exhibits butterfly arrangement with both μ4-O atoms on the same side of the molecule. The complex is mixed-valence , and the MnIII centers are assigned as the two central metal ions bridged by two O2− ions.
相似文献
18.
Wesley H. Monillas Glenn P. A. Yap Klaus H. Theopold 《Journal of chemical crystallography》2009,39(7):535-538
Abstract Addition LiNHPh to a [(NacNac)Cr(μ-I)]2 [NacNac = 2,4 pentane-N-N′-bis(2,6-diisopropylphenyl) ketiminato] in THF yields a dimeric anilido complex, 1, that crystallizes in P21/n with unit cell parameters a = 13.390(2) ?, b = 26.298(5) ?, c = 21.326(4) ?, β = 93.905(4)°, V = 7492(2) ?3 and Z = 4. The same reaction in the presence of aniline yields a monomeric anilido complex, 2, with a coordinated aniline molecule. Complex 2 crystallizes in P2
1
/c with unit cell parameters a = 28.530(5) ?, b = 10.8116(18) ?, c = 26.492(5) ?, β = 115.685(3)°, V = 7364(2) ?3 and Z = 8. Addition of aniline to isolated 1 yields 2. Addition of LiNPh2 to [(NacNac)Cr(μ-I)]2 in THF yields a monomeric complex that crystallizes in P21/n with the unit cell parameters a = 11.152(6) ?, b = 23.820(12) ?, c = 17.915(9) ?, β = 106.223(9)°, V = 4569(4) ?3 and Z = 4. All complexes have been spectroscopically and structurally characterized.
Graphical Abstract Addition of LiNHPh or LiNPh2 to [(NacNac)Cr(μ-I)]2 yields a dimeric or a monomeric complex whereas addition of LiNHPh in the presence of aniline yields the monomeric anilido
complex.
相似文献
19.
Abstract Well-formed dark red single-crystals of the potentially explosive cobalt(III) azido complex [Co(NH3)5N3](N3)2 (nitrogen content: 72.59%) have been grown using a safe small-scale preparation from [Co(NH3)5N3]Cl2 and sodium azide. The complex crystallizes in the orthorhombic system, space group Pnma with unit cell parameters a = 12.921(3) ?, b = 10.346(2) ?, c = 8.0315(16) ?, V = 1,073.7(4) ?3 and Z = 4. Five NH3 ligands and the azide anion surround the Co3+ ion in a nearly perfect octahedral geometry. Two azide anions are non-coordinating, and no water of crystallization is present
in the crystal structure.
Graphical Abstract Well-formed dark red single-crystals of the potentially explosive cobalt(III) azido complex [Co(NH3)5N3](N3)2 (nitrogen content: 72.59%) have been grown using a safe small-scale preparation from [Co(NH3)5N3]Cl2 and sodium azide. Five NH3 ligands and the azide anion surround the Co3+ ion in a nearly perfect octahedral geometry. Two azide anions are non-coordinating, and no water of crystallization is present
in the crystal structure.
相似文献
20.
D. Michelle Motley Judith A. Walmsley Julio Zukerman-Schpector Edward R. T. Tiekink 《Journal of chemical crystallography》2009,39(5):364-367
Abstract The gold(III) atom in [Au(NH2CH2CH2NH2)Cl2]NO3 is chelated by the ethylenediamine (en) ligand and the approximately square planar geometry is completed by two chloride
atoms. Weak Au···O and Au···Cl contacts are noted above and below the square plane leading to a tetragonally distorted octahedron
for the gold(III) center. Extensive charge-assisted hydrogen bonding of the type N–H···O leads to the formation of a 2-D array
and layers are consolidated into a 3-D network via C–H···O and C–H···Cl contacts. The compound crystallizes in the orthorhombic
space group Pbca with a = 10.3380(11) ?, b = 8.2105(7) ?, c = 19.625(2) ?, and Z = 8.
Index Abstract Square planar complex cations form additional Au···O and Au···Cl interactions to form a tetragonally distorted octahedron
for gold. The ionic components are connected into a 2-D array via charge-assisted N–H···O hydrogen bonding interactions.
相似文献