共查询到20条相似文献,搜索用时 15 毫秒
1.
B. K. Kasenov Zh. I. Sagintaeva Sh. B. Kasenova S. Zh. Davrenbekov A. Zh. Abil’daeva 《Russian Journal of Inorganic Chemistry》2013,58(8):976-979
Manganite ferrites NdMIMnFeO5 (MI = Li, Na, K) were synthesized from neodymium(III), manganese(III), and iron(III) oxides and lithium, sodium, and potassium carbonates by a ceramic technology. By grinding the obtained compounds in a ball mill, their nanostructured particles were produced, the sizes of which were determined with an electron microscope. X-ray powder diffraction study and indexing established that the nanostructured compounds NdMIMnFeO5 (MI = Li, Na, K) crystallize in the cubic system with the following lattice parameters: NdLiMnFeO5: a = 20.100 ± 0.034 Å, V 0 = 8120.60 Å3, Z = 10, V un.cell 0 = 812.06 Å3, ρX-ray = 7.14 g/cm3, and ρpycn = 7.09 ± 0.06 g/cm3; NdNaMnFeO5: a = 20.102 ± 0.032 Å, V 0 = 8123.03 Å3, Z = 10, V un.cell 0 = 812.30 Å3, ρX-ray = 7.11 g/cm3, and ρpycn = 7.04 ± 0.06 g/cm3; and NdKMnFeO5: a = 20.107 ± 0.011 Å, V 0 = 8129.09 Å3, Z = 10, V un.cell 0 = 812.91 Å3, ρX-ray = 7.03 g/cm3, and ρpycn = 6.95 ± 0.07 g/cm3. 相似文献
2.
B. K. Kasenov Sh. B. Kasenova Zh. I. Sagintaeva A. Zh. Abil’daeva 《Russian Journal of Inorganic Chemistry》2014,59(4):373-375
LaM 1.5 II MnFeO6 manganitoferrites (MII = Mg, Ca, Sr, Ba) have been synthesized by ceramic technology from lanthanum oxide, manganese(III) oxide, iron(III) oxide, and alkali-earth carbonates. X-ray powder diffraction shows that these compounds crystallize in cubic crystal system with the following unit cell parameters: for LaMg1.5MnFeO6: a = 20.232 ± 0.032 Å, V 0 = 8281.642 ± 0.096 Å3, Z = 10, ρX = 7.38 g/cm3, ρpycn = 7.29 ± 0.06 g/cm3; for LaCa1.5MnFeO6: a = 20.056 ± 0.017 Å, V 0 = 8067.388 ± 0.051 Å3, Z = 8, ρX = 5.89 g/cm3, ρpycn = 5.78 ± 0.06 g/cm3; for LaSr1.5MnFeO6: a = 20.117 ± 0.021 Å, V 0 = 8141.223 ± 0.063 Å3, Z = 8, V u.c. 0 = 1017.653 ± 0.008 Å3, ρX = 6.64 g/cm3, ρpycn = 6.56 Å 0.08 g/cm3; for LaBa1.5MnFeO6: a = 20.361 ± 0.025 Å, V 0 = 8441.066 ± 0.075 Å3, Z = 8, ρX = 7.31 g/cm3, ρpycn = 7.25 ± 0.07 g/cm3. 相似文献
3.
Sh. B. Kasenova B. K. Kasenov Zh. I. Sagintaeva E. E. Kuanyshbekov B. T. Ermagambet A. A. Seisenova D. I. Smagulova 《Russian Journal of Inorganic Chemistry》2014,59(9):1010-1014
Cuprate manganites of the composition LaM 2 II CuMnO6 (MII = Mg, Ca, Sr, Ba) were synthesized from lanthanum, copper(II), and manganese(III) oxides and alkaline-earth metal carbonates by high-temperature solid-phase synthesis. By grinding the produced substances in a ball mill, their nanostructured particles were obtained, the sizes of which were determined with an electron microscope. Indexing the X-ray powder diffraction patterns of the cuprate manganites established that all of them crystallize in the cubic system with the following unit cell parameters: LaMg2CuMnO6: a = 15.523 ± 0.033 Å, Z = 6, V 0 = 3740.48 ± 0.10 Å3, V el.cell 0 = 623.41 ± 0.03Å3, ρX-ray = 5.81 g/cm3, and ρpycn = 5.75 ± 0.06 g/cm3; LaCa2CuMnO6: a = 15.422 ± 0.058 Å, Z = 4, V 0 = 3667.94 ± 0.174 Å3, V el.cell 0 = 916.48 ± 0.04 Å3, ρX-ray = 3.77 g/cm3, and ρpycn = 3.72 ± 0.05 g/cm3; LaSr2CuMnO6: a = 15.275 ± 0.049 Å, Z = 4, V 0 = 3564.05 ± 0.27 Å3, V el.cell 0 = 891.01 ± 0.07 Å3, ρX-ray = 4.31 g/cm3, and ρpycn = 4.25 ± 0.05 g/cm3; and LaBa2CuMnO6: a = 15.589 ± 0.029 Å, Z = 4, V 0 = 3788.39 ± 0.09 Å3, V el.cell 0 = 947.10 ± 0.02 Å3, ρX-ray = 4.74 g/cm3, and ρpycn = 4.70 ± 0.05 g/cm3. The data of an IR spectroscopic study of the cuprate manganites were presented. 相似文献
4.
B. K. Kasenov E. S. Mustafin Zh. I. Sagintaeva M. A. Isabaeva S. Zh. Davrenbekov Sh. B. Kasenova A. Zh. Abil’daeva 《Russian Journal of Inorganic Chemistry》2013,58(2):206-208
LaM 3 I CrMnO6 (MI = Li, Na) and LaM 3 II CrMnO7.5 (MII = Mg, Ca) chromitomanganites were synthesized by ceramic technology from lanthanum oxide, chromium(III) oxide, manganese(III) oxide, lithium carbonate, sodium carbonate, magnesium carbonate, and calcium carbonate. X-ray powder diffraction shows that these compounds crystallize in cubic or tetragonal systems with the following unit cell parameters: for LaLi3CrMnO6 (cubic): a = 10.98 Å, V ○ = 1323.75 Å3, Z = 8, V u.c ○ = 165.47Å3, ρX = 3.64, ρpycn= 3.60 ± 0.04 g/cm3; for LaNa3CrMnO6 (tetragonal): a = 10.96 Å, c = 15.73 Å, V ○ = 1889.51 Å3, Z = 16, V u.c ○ = 118.09 Å3, ρX = 5.77 g/cm3, ρpycn = 5.70 ± 0.07 g/cm3; LaMg3CrMnO7.5 (cubic), a = 10.98 Å, V ○ = 1322.31 Å3, Z = 8, V u.c ○ = 165.29 Å3, ρX = 4.41 g/cm3, ρpycn = 4.35 ± 0.07 g/cm3; and for LaCa3CrMnO7.5 (cubic): a = 10.97 Å, V ○ = 1319.78 Å3, Z = 8, V u.c pO = 164.97 Å3, ρX = 4.89 g/cm3, ρpycn = 4.85 ± 0.05 g/cm3. 相似文献
5.
B. K. Kasenov E. G. Tolokonnikov E. S. Mustafin Sh. B. Kasenova S. Zh. Davrenbekov Zh. I. Sagintaeva E. K. Zhumadilov 《Russian Journal of Inorganic Chemistry》2006,51(3):368-373
Ferrites YbSrFe2O5.5 and YbBaFe2O5.5 are prepared by reacting ytterbium(III) oxide and iron(III) oxide with strontium or barium carbonate in the solid phase. The ferrites crystallize in the orthorhombic system as shown by indexing of their X-ray diffraction patterns with homology modeling: for YbSrFe2O5.5, a = 10.74 ± 0.006 Å, b = 10.93 ± 0.006 Å, c = 16.64 ± 0.046 Å, V 0 = 1953.3 Å3, Z = 16, V subcell 0 = 122.08 Å3, ρX-ray = 6.26 g/cm3, ρpycn = 6.18 ± 0.9 g/cm3; for YbaBaFe2O5.5, a = 10.74 ± 0.013 Å, b = 10.99 ± 0.004 Å, c = 17.16 ± 0.017 Å, V 0 = 2025.4 Å3, Z = 16, V subcell 0 = 126.59 Å3, ρX-ray = 6.69 g/cm3, ρpycn = 6.40 ± 0.32 g/cm3. The calorimetric heat capacities of the ferrites are studied from 298.15 to 673 K. The C p o ~ f(T) curves show λ peaks at 448 K for YbSrFe2O5.5 and at 373 K for YbBaFe2O5.5, likely, due to second-order phase transitions. The dielectric constants and electrical resistances of the ferrites are studied as functions of temperature from 293 to 493 K. 相似文献
6.
E. S. Mustafin B. K. Kasenov O. I. Zharkeshov M. A. Akubaeva 《Russian Journal of Inorganic Chemistry》2006,51(7):994-995
Ferrites LaNaMnFeO5 and LaKMnFeO5 have been synthesized by the ceramic method from lanthanum(III) and iron(III) oxides and sodium and potassium carbonates. The ferrites crystallize in the orthorhombic crystal system with the following lattice parameters: LaNaMnFeO5: a = 10.943 ± 0.002 Å, b = 11.022 ± 0.001 Å, c = 16.165 ± 0.028 Å, V 0 = 1949.72 Å3, Z = 16, V unit cell 0 = 12.1.85 Å3, ρX = 4.83, ρpycn = 4.76 ± 0.09 g/cm3; LaKMnFeO5: a = 10.959 ± 0.011 Å, b = 11.036 ± 0.005 Å, c = 17.825 ± 0.074 Å, V 0 = 2155.81 Å3, Z = 16, V unit cell 0 = 134.74 Å3, ρX = 4.54, ρpycn = 4.46 ± 0.07 g/cm3. 相似文献
7.
B. B. Tumataeva B. K. Kasenov S. Zh. Davrenbekov E. S. Mustafin Zh. I. Sagintaeva Sh. B. Kasenova S. T. Edil’baeva 《Russian Journal of Inorganic Chemistry》2009,54(1):27-29
Ytterbium alkali-metal chromites YbMCr2O5 (M = Li, Na, K, Cs) were synthesized by a ceramic procedure from the corresponding oxides and carbonates. Their crystal systems and unit cell parameters were determined by the homology method: for YbLiCr2O5, a = 10.34 Å, b = 10.62 Å, c = 15.05 Å, Z = 16, V o = 1653.74 Å3, ρX-ray = 5.85 g/cm3, ρpycn = 5.81 ± 0.03 g/cm3; for YbNaCr2O5, a = 10.30 Å, b = 10.56 Å, c = 16.46 Å, Z = 16, V o = 1790.32 Å3, ρX-ray = 5.64 g/cm3, ρpycn = 5.59 ± 0.07 g/cm3; for YbKCr2O5, a = 10.33 Å, b = 10.63 Å, c = 19.93 Å, Z = 16, V o = 2188.47 Å3, ρX-ray = 5.95 g/cm3, ρpycn = 5.91 ± 0.03 g/cm3; and for YbCsCr2O5, a = 10.34 Å, b = 10.63 Å, c = 18.43 Å, Z = 16, V o = 2025.72 Å3, ρX-ray = 5.19 g/cm3, ρpycn = 5.16 ± 0.05 g/cm3. 相似文献
8.
B. K. Kasenov S. T. Edil’baeva E. S. Mustafin S. M. Sergazina Sh. B. Kasenova S. Zh. Davrenbekov 《Russian Journal of Inorganic Chemistry》2007,52(8):1180-1183
New ferrites ErMFe2O5 (M = Li, Na, K) were synthesized from erbium and iron(III) oxides and lithium, sodium, and potassium carbonates by solid-state annealing. According to X-ray powder diffraction, these compounds crystallize in the orthorhombic system with the following unit cell parameters: ErLiFe2O5, a = 10.510 Å, b = 10.776 Å, c = 14.270 Å, V 0 = 1616.16 Å3; Z = 16, V subcell 0 = 101.01 Å3, ρX = 6.01 g/cm3, ρpycn = 5.97 ± 0.05 g/cm3; ErNaFe2O5, a = 10.519 Å, b = 10.785 Å, c = 15.510 Å, V 0 = 1759.56 Å3, Z = 16, V subcell 0 = 109.90 Å3, ρX = 5.77 g/cm3, ρpycn = 5.72 ± 0.08 g/cm3; ErKFe2O5, a = 10.050 Å, b = 11.320 Å, c = 15.480 Å, V 0 = 1937.33 Å3, Z = 16, V subcell 0 = 121.08 Å3, ρX = 5.46 g/cm3, ρpycn = 5.41 ± 0.04 g/cm3. 相似文献
9.
S. M. Sergazina B. K. Kasenov E. S. Mustafin Zh. I. Sagintaeva S. Zh. Davrenbekov M. A. Akubaeva Sh. B. Kasenova R. Sh. Erkasov E. K. Zhumadilov 《Russian Journal of Inorganic Chemistry》2010,55(10):1607-1610
Ferrites of composition ErMIFe2O5 (MI = Li, Na, K, Cs) were synthesized by a solid-phase method. The structure of the ferrites was for the first time studied by X-ray powder diffraction. Crystal systems, unit cell parameters, and X-ray and pycnometric densities were determined. For ErLiFe2O5, a = 10.510 Å, c = 14.270 Å, V°= 1616.16 Å3, Z = 16, V subcell ° = 101.01 Å3, ρx = 6.01 g/cm3, ρpyc = 5.97 ± 0.04 g/cm3; for ErNaFe2O5, a = 10.519 Å, c = 15.510 Å, V° = 1759.56 Å3, Z = 16, V subcell ° = 109.90 Å3, ρx = 5.77 g/cm3, ρpyc = 5.72 ± 0.08 g/cm3; for ErKFe2O5, a = 11.050 Å, c = 15.480 Å, V° = 1937.33 Å3, Z = 16, V subcell ° = 121.08 Å3, ρx = 5.46 g/cm3, ρpyc = 5.41 ± 0.04 g/cm3; and for ErCsFe2O5, a = 10.78 Å, c = 16.01 Å, V° = 1905.37 Å3, Z = 16, V subcell ° = 119.09 Å3, ρx = 6.86 g/cm3, ρpyc = 6.61 ± 0.01 g/cm3. 相似文献
10.
This is the first work to synthesize 4,4,10,10-tetramethyl-1,3,7,9-tetraazospiro[5.5]undecane-2,8-dione monohydrate, monochloride, mononitrate, and teteraiodotellurate: C11H20N4O2·H2O (I), C11H21N4O 2 + ·Cl? (II), C11H21N4O 2 + ·NO 3 ? (III), and 2(C11H21N4O 2 + )·TeI 4 2? ·C3H6O (IV) and determine their structures. Crystals of I are monoclinic: space group P21/c, at 298 K a = 5.7118(7) Å, b = 17.842(2) Å, and c = 13.5905(16) Å; β = 91.621(11)°; V = 1384.5(3) Å3; d x = 1.239 g/cm3, Z = 4. Crystals of II are tetragonal: space group P43, at 298 K a = 6.4134(3) Å and c = 34.292(2) Å; V = 1410.47(14) Å3; d x = 1.303 g/cm3; Z = 4. Crystals of III are triclinic: space group \(P\bar 1\) , at 298 K a = 8.7614(14) Å, b = 9.3904(18) Å, and c = 10.028(2) Å; α = 63.27(2)°, β = 78.591(16)°, and γ = 84.308(15)°; V = 722.3(2) Å3; d x = 1.40 g/cm3; Z = 2. Crystals of IV are triclinic: space group \(P\bar 1\) , at 100 K a = 10.4630(4) Å, b = 11.9372(6) Å, and c = 16.4118(5) Å; α = 72.058(3)°, β = 76.406(3)°, and γ = 87.029(3)°; V = 1895.04(12) Å3; d x = 2.06 g/cm3; Z = 2. The synthesis of s and p metals with spirocarbone in acetone medium is found to be impossible due to the protonation by the oxygen atom of the carbonyl group. The main crystalline product of the complexation reaction is a monosalt. Evidence is provided that the recrystallization and drying of the synthesized spirocarbone preparation yields monohydrate (I); its purity and monophasity is confirmed by a Rietveld refinement of the powder X-ray pattern. The lattice parameters at room temperature are: a = 5.6885(12) Å, b = 17.8496(12) Å, and c = 13.518(3) Å; β = 91.449(15)°; V = 1372.1(4) Å3. The sample is monophasic. 相似文献
11.
Yu. V. Kokunov Yu. E. Gorbunova V. V. Kovalev 《Russian Journal of Coordination Chemistry》2011,37(2):95-99
The coordination polymers [Ag(C4H10N2)]CH3SO3 (I) and [Ag(C4H10N2)]PO2F2 (II) (C4H10N2 is piperazine (Ppz)) are synthesized, and their structures are determined. The crystals of I are monoclinic, space group P21/c, a = 6.280(1) Å, b = 11.781(1) Å, c = 12.112(1) Å, β = 97.21(1)°, V = 889.0(2) Å3, ρcalcd = 2.160 g/cm3, and Z = 4. The crystals of II are orthorhombic, space group Cmca, a = 13.039(1) Å, b = 10.450(1) Å, c = 12.837(1) Å, V = 1749.1(3) Å3, ρcalcd = 2.240 g/cm3, and Z = 8. Structure I contains cationic polymer chains [Ag(Ppz)] ∞ + . The silver atom bound to two nitrogen atoms of two Ppz ligands has an almost linear coordination mode (Ag-Naverage 2.197 Å, angle NAgN 161.2(1)°). The structure includes supramolecular layers due to weak interactions Ag…O(CH3SO3). Structure II is built of zigzag polymer chains [Ag(Ppz)]+ and tetrahedral cations PO2F 2 ? . The Ag+ ion has a linear coordination mode (Ag-N 2.220(3) Å, and the NAgN angle is 164.3(2)°). The tetrahedral anions PO2F 2 ? having weak contacts with the silver ions (Ag…O 2.630(3)Å) join the [Ag(Ppz)] ∞ + chains into wavy layers. 相似文献
12.
A. V. Tikhomirova E. V. Peresypkina A. V. Virovets T. G. Cherkasova 《Russian Journal of Inorganic Chemistry》2013,58(5):534-542
The X-ray diffraction study of the crystalline products of the reaction between potassium tetraiodomercurate(II), ?-caprolactam, and lanthanum(III) nitrate at a ratio of 3: 16: 2 in an aqueous solution has shown the presence of the following three new crystalline compounds: [LaCpl8]2[HgI4]3 (I), [LaCpl8][HgI4]I3 (II), and [LaCpl7(H2O)]2[HgI4]2[Hg2I6] (III), where Cpl is ?-caprolactam ?-C6H11NO. Compounds I and II crystallize in tetragonal crystal system, space groups P42/n and $I\bar 4$ , respectively. For compound I, a = 18.59320(10) Å, c = 19.5782(3) Å, V = 6738.32(12) Å3, Z = 2, and ρcalc = 2.067 g/cm3. For compound II, a = 13.2245(10) Å, c = 20.0310(3) Å, V = 3503.17(6) Å3, Z = 2, ρcalc = 2.022 g/cm3. The crystals of compound III are monoclinic (space group P 2 1/n, a = 20.1202(6) Å, b = 14.0569(4) Å, c = 46.3228(12) Å, β = 93.4770(10)°, V = 13077.3(6) Å3, Z = 4, ρcalc = 2.274 g/cm3). [La(Cpl)8]2[Hg2I6]3 (IV), a new double ionic complex salt, has also been synthesized and studied by X-ray diffraction. The crystals of compound IV are triclinic (space group $P\bar 1$ , a = 12.5021(3) Å, b = 14.6436(3) Å, c = 21.4695(4) Å, α = 84.2300(10)°, β = 87.2230(10)°, γ = 74.9970(10)°, V = 3776.30(14) Å3, Z = 1, ρcalc = 2.452 g/cm3). All complexes have a dicrete ionic structure, and the nearest surrounding of a La atom is distorted square-prismatic or trigonal-dodecahedral. The crystal packing of cations is distorted face-centered cubic (I and II) or body-centered cubic (III and IV) with anions located in its cavities. 相似文献
13.
Yu. V. Kokunov Yu. E. Gorbunova L. V. Khmelevskaya 《Russian Journal of Inorganic Chemistry》2006,51(8):1192-1197
The compound [Ag(Bpe)](NO3)·3H2O (Bpe = 4,4′-bipyridylethylene, C12H10N2) is prepared and its crystal structure is determined. The crystals are triclinic: a = 9.073(2) Å, b = 10.074(2) Å, c = 10.391(2) Å, α = 61.18(3)°, β = 72.11(3)°, γ = 68.62(3)°, space group P $\bar 1$ , V = 764.7(3) Å3, ρ(calcd) = 1.764 g/cm3, Z = 2. The structure is composed of polymeric cationic chains, [Ag(Bpe)] ∞ + , NO 3 ? counterions, and water molecules. The Ag+ ions are bound to the two N atoms of two crystallographically nonequivalent Bpe ligands and form a nearly linear coordination (Ag(1)-N(1), 2.129 Å; Ag(1)-N(2), 2.120(4) Å; N(1)Ag(1)N(2), 169.9(2)°). 相似文献
14.
S. Holguín Quiñones G. Z. Kaziev Yu. S. Vlasov A. V. Oreshkina O. A. Kirichenko A. M. Koroteev 《Russian Journal of Inorganic Chemistry》2014,59(5):469-471
Quinazoline hexamolybdochromate [C9H16N2]H3[CrMo6O18(OH)6] · 2H2O has been synthesized and studied by mass spectroscopy, X-ray powder diffraction, thermogravimetry, and IR and NMR spectroscopy. The compound crystallizes in triclinic system with the unit cell parameters a = 15.06 Å, b = 13.08 Å, c = 8.17 Å, α = 59.85°, β = 123.15°, γ = 107.01°, V = 1165.62 Å3, ρpycn = 3.58 g/cm3, and Z = 2. 相似文献
15.
Yu. V. Kokunov Yu. E. Gorbunova V. V. Kovalev S. A. Kozyukhin 《Russian Journal of Inorganic Chemistry》2013,58(5):523-526
The silver complex with phenazine [Ag(Phz)2(H2O)]ReO4 (Phz is C12H8N2) has been synthesized, and its crystal structure has been determined. The crystals are triclinic: space group $P\bar 1$ , a = 9.587(1) Å, b = 10.875(1) Å, c = 11.668(1) Å, α = 104.98(1)°, β = 103.87(1)°, γ = 92.94(1)°, V = 1132.6(2) Å3, Z = 2, ρcalc = 2.160 g/cm3. The structure is composed of the [Ag(Phz)2(H2O)]+ silver cationic complexes and ReO 4 ? anions. The Ag+ ion is coordinated by two nitrogen atoms of independent phenazine molecules and the water oxygen atoms and has a T-shaped coordination (Ag-Nav 2.223 Å, Ag-Ow 2.498(8) Å). Phenazine, being an electron-donor ligand, forms columns due to π-π stacking interaction between the aromatic groups. The water molecules form hydrogen bonds with the oxygen atoms of water molecules of neighboring complexes and with oxygen atoms of the ReO 4 ? anions. 相似文献
16.
A. V. Oreshkina G. Z. Kaziev A. V. Steblevskii 《Russian Journal of Inorganic Chemistry》2010,55(12):1863-1866
Hydrogen hexamolybdogallate and hexamolybdoaluminate with the hexamminecadmium cation [Cd(NH3)6] · H[GaMo6O18(OH)6] · 6H2O (I) and [Cd(NH3)6] · H[AlMo6O18(OH)6] · 6H2O (II) were synthesized and studied by mass spectrometry, thermogravimetric analysis, powder X-ray diffraction, and IR spectroscopy. The crystals are monoclinic; I: a = 10.82 Å, b = 3.69 Å, c = 11.99 Å, β = 91.06°, V= 469.72 Å3, ρcalcd = 2.34 g/cm3, Z = 2; II: a = 10.81 Å, b = 3.67 Å, c =11.98 Å, β = 91.08°, V = 469.78 Å3, ρcalcd = 2.38 g/cm3, Z = 2. 相似文献
17.
A. F. Stepnova S. Holguin Quiñones G. Z. Kaziev O. A. Kirichenko A. V. Oreshkina L. A. Morales Sanchez 《Russian Journal of Coordination Chemistry》2013,39(6):475-477
Hexaaquachromium(III) trihydrogen isopolyvanadate [Cr(H2O)6]H3[V10O28] · 2H2O (I) was obtained and examined by mass spectrometry, X-ray powder diffraction, thermogravimetry, and IR and NMR spectroscopy. The crystals are monoclinic, space group $P\bar 1$ a = 7.862(3), b = 8.427(5), c = 5.000(2) Å, β = 96.46(4)°, V = 867.0(3) Å3, ρcalcd = 5.83 g/cm3, Z = 1. 相似文献
18.
A. V. Oreshkina G. Z. Kaziev A. V. Steblevskii 《Russian Journal of Inorganic Chemistry》2009,54(7):1018-1022
Tetraamminecobalt hydrogen hexamolybdoferrate [Co(NH3)4] · H[FeMo6O18(OH)6] · 6H2O (I) and tetraamminecobalt hydrogen hexamolybdogallate(III) [Co(NH3)4] · H[GaMo6O18(OH)6] · 6H2O (II) were synthesized and studied by mass spectrometry, thermogravimetry, IR spectroscopy, and X-ray diffraction. Crystals of I and II are monoclinic; a = 16.21 Å, b = 5.43 Å, c = 12.32 Å, β = 119.63°, V = 1092.11 Å3, ρcalcd = 2.21 g/cm3, and Z = 1 for I; a = 16.24 Å, b = 5.59 Å, c = 12.29 Å, β = 119.79°, V = 1064.05 Å3, ρcalcd = 2.15 g/cm3, and Z = 1 for II. Compounds I and II were used as catalysts for soft oxidation of natural gas. 相似文献
19.
Q. H. Zhao D. Y. Tang Y. H. Zhang R. B. Fang 《Russian Journal of Coordination Chemistry》2006,32(4):261-265
A novel three-dimensional cobalt(II)-radical complex {Co(NITmPy)2[N(CN)2]2}n (NITmPy = 2-(3′-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide) is prepared and characterized by X-ray crystallography. The complex crystallizes in the monoclinic system, space group P21/c, with unit cell parameters a = 12.5775(5) Å, b = 10.9340(5) Å, c = 11.6134(5) Å, β = 108.1320(10)°; V = 1517.79(11) Å3, ρcalcd = 1.443 g/cm3, and Z = 2 for R 1 = 0.0463. In the complex, each cobalt ion is six-coordinate with four nitrogen atoms from four N(CN) 2 t- ligands and two nitrogen atoms of pyridyl groups, and the [Co(NITmPy)2]2+ units are linked by N(CN) 2 t- μ-bridging ligands to form a three-dimensional structure. The variable-temperature magnetic susceptibility data show that the complex exhibits weak antiferromagnetic interactions. 相似文献
20.
A. V. Oreshkina G. Z. Kaziev A. V. Steblevskii T. Yu. Glazunova 《Russian Journal of Inorganic Chemistry》2013,58(8):906-909
[Co(NH3)6] · H2[NiMo6O18(OH)6] · 6H2O (I) and [Co(NH3)6] · H2[ZnMo6O18(OH)6] · 6H2O (II) have been synthesized and studied by mass spectroscopy, thermogravimetry, and X-ray powder diffraction. The crystals of compounds I and II are monoclinic, Z = 1; for compound I: a = 16.10 Å, b = 5.58 Å, c = 12.22 Å, β = 117.86°, V = 1045.14 Å3, and ρcalcd = 2.26 g/cm3; for compound II: a = 16.12 Å, b = 5.52 Å, c = 12.12 Å, β = 117.90°, V = 1043.21 Å3, and ρcalcd = 2.21 g/cm3. 相似文献