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91.
L. A. Glinskaya T. G. Leonova R. F. Klevtsova S. V. Larionov 《Journal of Structural Chemistry》2010,51(3):594-598
A compound with the composition Nd(C6F5COO)3· H2O (I) is prepared. Single crystals are grown, and their single crystal XRD analysis of the Nd2(H2O)8(C6F5COO)6]·2H2O (II) compound is performed. The crystals are triclinic: a = 7.693(2) Å, b = 9.394(2) Å, c = 18.203(4) Å, α = 81.91(3)°, β = 84.41(3)°, γ = 88.97(3)°, Z = 1, d x = 2.223 g/cm3. The structure is composed of symmetrical molecules of the binuclear [Nd2(H2O)8(C6F5COO)6] complex and crystallization water molecules. The C6F5COO- ligands are monodentate and tridentate bridging- chelating, which results in a closure of two four-membered chelate cycles NdO2C and a four-membered metal cycle Nd2O2. The NdO9 polyhedron is a distorted one-capped tetragonal antiprism. 相似文献
92.
V. A. Afanas’eva I. V. Mironov L. A. Glinskaya R. F. Klevtsova 《Russian Journal of Coordination Chemistry》2010,36(1):9-21
Data on the synthesis and physicochemical study of polychelate gold(III) tetraaza complexes containing two five-membered and
one or two six-membered unsaturated chelate rings were generalized. 相似文献
93.
Z. A. Savel’eva R. F. Klevtsova L. A. Glinskaya S. A. Popov A. V. Tkachev S. V. Larionov 《Russian Journal of Coordination Chemistry》2010,36(9):685-692
The chiral complexes [PdL1Cl2] (I) and [PdL2Cl2] (II) (where L1 and L2 are hydroxypyrazolylquinoline and pyrazolylquinoline, respectively, based on the monoterpenoid (+)-3-carene) were obtained
and examined using X-ray diffraction. The crystal structures of complexes I and II are built from mononuclear acentric molecules. The Pd2+ ions coordinate two N atoms of the chelating bidentate ligand L1 or L2 and two Cl atoms. The coordination polyhedron Cl2N2 is a square distorted in a tetrahedral manner. In structure I, adjacent molecules are linked by intermolecular contacts and hydrogen bonds Cl···H-O, which gives rise to chains aligned
with the axis x. In structure II, contacts that are substantially shorter than the van der Waals interactions were not detected. 相似文献
94.
V. G. Grossman B. G. Bazarov R. F. Klevtsova L. A. Glinskaya Zh. G. Bazarova 《Russian Chemical Bulletin》2012,61(8):1546-1549
The subsolidus region of the ternary salt system Tl2MoO4-Fe2(MoO4)3-Hf(MoO4)2 was studied by X-ray powder diffraction. New compounds Tl5FeHf(MoO4)6 (5: 1: 2) and Tl(Fe,Hf0.5)(MoO4)3 (1: 1: 1). were found to be formed in this system. Crystals of new ternary molybdate of the composition Tl(FeHf0.5)(MoO4)3 were grown by spontaneous flux crystallization. Its composition and crystal structure were refined based on X-ray diffraction data. The mixed three-dimensional framework of the crystal structure is composed of Mo tetrahedra sharing O vertices with (Fe,Hf)O6 octahedra. The thallium atoms occupy wide channels in the framework. 相似文献
95.
Z. A. Savel’eva S. N. Bizyaev L. A. Glinskaya R. F. Klevtsova A. V. Tkachev S. V. Larionov 《Russian Journal of Coordination Chemistry》2006,32(10):723-732
Reactions of Ni(NO3)2 · 6H2O) in EtOH(iso-PrOH) with optically active bis(menthane) ethylene-diaminodioxime (H2L1), pinano-para-menthane ethylenediaminodioxime (H2L2), pinano-para-menthane propylenediaminodioxime (H2L3) and bis(pinane) propylenediaminodioxime (H2L4) were used to synthesize [Ni(H2L1)NO3[NO3 · 2H2O (I), [Ni(HL2)]NO3 (II), [Ni(HL3)]NO3 (III), and [Ni(HL4)]NO3 (IV). X-ray diffraction study of paramagnetic complex I (μeff = 3.04 μB and diamagnetic complexes II and III revealed their ionic structures. A distorted octahedral polyhedron N4O2 in the cation of complex I is formed by the N atoms of tetradentate cycle-forming ligand, i.e., the H2L1 molecule, and the O atoms of the NO 3 ? anion acting as a bidentate cyclic ligand. In the cations of complexes II and III, containing a pinane fragment, the coordination core NiN4 has the shape of a distorted square formed on coordination of tetradentate cycle-forming ligands, i.e., anions of the starting dioximes. The structure of diamagnetic complex IV is likely to be similar to the structures of complexes II and III. 相似文献
96.
S. V. Larionov L. I. Myachina R. F. Klevtsova L. A. Glinskaya N. V. Kurat’eva E. M. Uskov M. I. Rakhmanov V. M. Karpov V. E. Platonov V. P. Fadeeva 《Russian Journal of Coordination Chemistry》2011,37(9):650-656
Complexes Zn(H2O)4(L) (I) and Zn(H2O)(L) (II) (H2L = p-HOOCC6F4COOH) are synthesized. Single crystals of compound [Zn(H2O)4(L) · 4H2O]
n
(III) are grown. According to the X-ray diffraction data, the crystal structure of compound III is built of zigzag chains of coordination polymer Zn(H2O)4(L) and molecules of water of crystallization. The chain contains ions Zn2+, whose octahedral coordination sphere includes the O atoms of four water molecules and two O atoms of the deprotonated carboxyl
groups. The chains in structure III are joined by a system of hydrogen bonds of coordinated water molecules and molecules of water of crystallization. The photoluminescence
spectrum of H2L exhibits the band with λmax = 368 nm. The spectra of compounds III, I, and II contain bands at 322, 340, and 353 nm, respectively. 相似文献
97.
S. A. Popov L. A. Glinskaya T. E. Kokina R. F. Klevtsova A. V. Shpatov 《Journal of Structural Chemistry》2011,52(3):582-588
3,5-Dimethyl-1H-pyrazolide of 3-O-acetyl ursolic acid (II) is obtained in the course of the interaction of 3 O-acetyl ursolic acid acyl chloride (I) and 3,5-dimethyl-1H-pyrazole. The crystal structure of compound II is determined from the single crystal XRD data (150 K, Bruker X8 Apex CCD autodiffractometer, MoK α radiation). The crystals are rhombic, the unit cell parameters are as follows: a = 10.6034(2) Å, b = 12.4096(2)Å, c = 24.5972(5)Å, P212121 space group. The structure consists of discrete acentric molecules. When pyrazolide II is boiled in the alcohol alkali solution, secondary hydroxyl is deacetylated and 3,5-dimethyl-1H-pyrazolide of ursolic acid IV is formed. Compounds II and IV are studied by NMR spectroscopy. 相似文献
98.
R. K. Tukhtaev S. V. Larionov R. F. Klevtsova L. I. Myachina L. A. Glinskaya T. A. Udalova N. Z. Lyakhov 《Russian Journal of Inorganic Chemistry》2011,56(6):881-887
The crystal structure of the complex (N2H5)[Ni(NH2NHCOO)3] · H2O (I) was refined using X-ray diffraction data (obtained on an Apex X8 diffractometer, MoK
α radiation, 1830 F
hkl
, R = 0.0182). The structure is built of complex anions [Ni(NH2NHCOO)3]−, cations N2H5+, and water molecules and is characterized by strong hydrogen bonds N-H…O, O-H…O, and N-H…N. The N3O3 coordination polyhedron around a Ni atom is a slightly distorted octahedron. The thermal decomposition of complex I was studied in high-boiling organic liquids. The feasibility of preparing non-pyrophoric nickel powders having particle sizes
of up to 20 nm is shown. 相似文献
99.
100.