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1.
B. Liu P. Hu J. Wang R. Xu L. Q. Zhang J. Gao Y. F. Wang X. D. Zhang 《Russian Journal of Coordination Chemistry》2009,35(10):758-765
The title complexes, K[SmIII(Edta)(H2O)3] · 2H2O(I)(H4Edta = ethylenediamine-N,N,N′,N′-tetraacetic acid) and K2[SmIII(Pdta)(H2O)2]2 · 4.5H2O (II) (H4Pdta = propylenediamine-N,N,N′,N′-tetraacetic acid), were prepared and their compositions and structures were determined by
elemental analyses and single-crystal X-ray diffraction techniques, respectively. Complex I has a mononuclear structure, and
the Sm3+ ion is nine-coordinated by an Edta ligand and three water molecules, yielding a pseudo-monocapped square antiprismatic conformation,
and the complex crystallizes in the orthorhombic crystal system with space group Fdd2. The crystal data are as follows: a = 19.84(5), b = 35.58(9), c = 12.15(3) ?, V = 8580(38) ?3, Z = 16, ρ
c
= 1.925 g/cm3, μ = 3.010 mm−1, F(000) = 4976, R = 0.0252, and wR = 0.0560 for 3510 observed reflections with I ≥ 2σ(I). Complex II has a binuclear structure and the Sm3+ ion is ten-coordinated by a Pdta ligand, two oxygen atoms from a carboxylic group of adjacent Pdta ligand and two water molecules,
yielding a distorted bicapped square antiprismatic prism. The complex crystallizes in the triclinic crystal system with space
group P
$
\bar 1
$
\bar 1
. The crystal data are as follows: a = 8.9523(15), b = 10.7106(15), c = 11.6900(19) ?, α = 80.613(5)°, β = 80.397(5)°, γ = 76.530(4)°, V = 1065.7(3) ?3, Z = 1, ρc = 1.970 g/cm3, μ = 2.532 mm−1, F(000) = 1620, R = 0.0332 and wR = 0.0924 for 5390 observed reflections with I ≥ 2σ(I). 相似文献
2.
A. P. Tyutyunnik V. N. Krasil’nikov I. F. Berger V. G. Zubkov L. A. Perelyaeva I. V. Baklanova 《Russian Journal of Inorganic Chemistry》2011,56(8):1168-1177
The vanadium(V) complexes K[VO2(SeO4)(H2O)] and K[VO2(SeO4)(H2O)2] · H2O were synthesized using original procedures; their physicochemical properties were studied, and the crystal structure was
determined on the basis of X-ray diffraction and neutron diffraction data. The structure of K[VO2(SeO4)(H2O)2] · H2O is composed of VO6 octahedra connected to form infinite chains by bridging SeO4 tetrahedra. Each VO6 tetrahedron has short terminal V-O bonds forming the bent dioxovanadium group VO2+ The unit cell parameters of K[VO2(SeO4)(H2O)2] · H2O are a = 6.4045(1) ?, b = 9.9721(2) ?, c = 6.6104(1) ?, β = 107.183(1)°, V = 403.34 ?3, Z = 2, monoclinic system, space group P21. The complex K[VO2(SeO4)(H2O)] forms a two-dimensional layered structure composed of highly distorted VO6 octahedra having two short terminal V-O bonds and SeO4 groups coordinated simultaneously by three vanadium atoms. This compound crystallizes in the monoclinic system (space group
P21/c): a = 7.3783(1) ?, b = 10.5550(2) ?, c = 10.3460(2) ?, β = 131.625(1)°, V = 602.894(5) ?3, Z= 4. The vibrational spectra of the studied compounds are fully consistent with their structural features. 相似文献
3.
G. Chen H. Y. Niu W. Wang J. P. Wang J. Y. Niu 《Russian Journal of Coordination Chemistry》2010,36(8):605-609
A new Keggin-type silicotungstate anion-supported organic-inorganic hybrid transition metal complex, [Zn(Bipy)3]1.5[SiW12O40Zn(Bipy)2(OH)] · 0.25H2O (I) (Bipy = 2,2′-bipyridine), has been synthesized by the hydrothermal method and characterized by elemental analysis, IR, UV,
and EPR spectra, TG-DTA analysis, and single crystal X-ray diffraction. The structural analysis indicates that each structural
unit of I consists of one [SiW12O40Zn(Bipy)2(OH)]3− heteropolyanion, one and a half isolated [Zn(Bipy)3]2+ cations, and a quarter of crystal water molecule. The [Zn(Bipy)2(OH)]+ unit is covalently bonded to one Keggin polyoxoanion [SiW12O40]4− in the [SiW12O40Zn(Bipy)2(OH)]3− cluster. The EPR spectrum indicates the existence of Zn2+ with the high-spin state, and TG-DTA analysis exhibits that I has two steps of weight loss and the polyoxoanion framework
is collapsed at 618°C. 相似文献
4.
J. Wang Y. Wang Zh. H. Zhang X. D. Zhang J. Tong X. Zh. Liu X. Y. Liu Y. Zhang Zh. J. Pan 《Journal of Structural Chemistry》2005,46(5):895-905
Syntheses and structure determination of the YIII complexes with ethylenediaminetetraacetic acid (H4edta) and trans-1,2-cyclohexanediaminetetraacetic acid (H4cydta) are reported. The crystal and molecular structures of the complexes, as well as their molecular formulas and compositions,
were determined by single-crystal X-ray structure analyses, NMR, IR, thermogravimetric measurements, and elementary analyses.
The crystal of the Na[YIII(edta)(H2O)3]·5H2O complex belongs to the orthorhombic crystal system and space group Fdd2. The crystal data are as follows: a = 19.355(5) Å, b = 35.431(11) Å, c = 12.122(3) Å, V = 8313(4) Å3, Z = 16, M = 544.23, Dc = 1.739 g·cm−3, μ = 2.908 mm−1 and F(000) = 4480. The final R and Rw are 0.0483 and 0.1172 for 3284 (I > 2σ(I)) unique reflections, R and Rw are 0.0678 and 0.1440 for all 8499 reflections, respectively. The YIIIN2O7 part in the [YIII(edta)(H2O)3]− complex anion has a pseudo-monocapped square antiprismatic nine-coordinate structure, in which the six coordinated atoms
(two N and four O) from the edta ligand and three water molecules are coordinated to the central YIII ion directly. The crystal of the Na[YIII(cydta)(H2O)2]·5H2O complex belongs to the triclinic crystal system and
space group. The crystal data are as follows: a = 8.405(2) Å, b = 9.970(2) Å, c = 14.763(4) Å, α = 88.538(4)°, β = 76.193(4)°, γ = 88.100(4)°, V = 1200.6(5) Å 3, Z = 2, M = 580.31, Dc = 1.605 g·cm−3, μ = 2.519 mm−1 and F(000) = 600. The final R and Rw are 0.0381 and 0.0911 for 4198 (I > 2σ(I)) unique reflections, R and Rw are 0.0530 and 0.1041 for all 6186 reflections, respectively. The YIIIN2O6 part in the [YIII(cydta)(H2O)2]− complex anion has a pseudo square antiprismatic eight-coordinate structure in which the six coordinated atoms (two N and
four O) from the cydta ligand and two water molecules are coordinated to the central YIII ion directly.
Original Russian Text Copyright ? 2005 by J. Wang, Y. Wang, Zh. H. Zhang, X. D. Zhang, J. Tong, X. Zh. Liu, X. Y. Liu, Y.
Zhang, and Zh. J. Pan
__________
Translated from Zhurnal Strukturnoi Khimii, Vol. 46, No. 5, pp. 928–938, September–October, 2005. 相似文献
5.
为了研究配体修饰对自旋交叉现象的影响,我们合成了两个Fe(Ⅱ)自旋交叉的配合物[Fe(dpq)(py)2(NCS)2]·H2O·py和[Fe(dpq)(py)2(NCSe)2]·1.5H2O,(dpq=二吡嗪[2,3-f:2′3′-h]喹喔啉,py=吡啶)。通过对这两个配合物磁性质和穆斯堡尔谱的研究,发现和用邻啡咯啉配体合成的配合物比较,配体的修饰对自旋交叉性质以及其临界温度 相似文献
6.
G. Z. Kaziev A. V. Oreshkina S. H. Quinones D. A. Alekseev V. E. Zavodnik T. Yu. Glazunova 《Russian Journal of Coordination Chemistry》2007,33(8):582-587
Acid nickel oxovanadate, [Ni(H2O)6]2[H2V10O28] · 6H2O (I) was synthesized and studied by X-ray diffraction analysis, thermogravimetry, powder X-ray diffraction, and IR spectroscopy.
The crystals are triclinic: space group
, a = 8.869(2) ?, b = 10.869(2) ?, c = 11.116(2) ?, α = 65.14(3)°, β = 74.11(3)°, γ = 70.47(3)°, V = 907.41 ?3, ρ(calcd.) = 2.56 g/cm3, Z = 1.
Original Russian Text ? G.Z. Kaziev, A.V. Oreshkina, S.H. Quinones, D.A. Alekseev, V.E. Zavodnik, T.Yu. Glazunova, 2007, published
in Koordinatsionnaya Khimiya, 2007, Vol. 33, No. 8, pp. 593–598. 相似文献
7.
E. A. Gerasimova T. V. Utkina E. V. Peresypkina A. V. Virovets T. G. Cherkasova 《Russian Journal of Inorganic Chemistry》2009,54(5):692-697
New mixed-ligand coordination compounds[Cd(DMSO)5(NCS)][Cr(NH3)2(NCS)4] · 3DMSO (I) and [Mn(DMSO)4(H2O)2][Cr(NH3)2(NCS)4]2 · 6DMSO · 2H2O (II) have been synthesized and studied by IR spectroscopy and X-ray diffraction analysis. The crystals of compound I are monoclinic, a = 14.5275(7), b = 23.1692(11), c = 14.6969(6) ?, β = 97.057(2)°, V = 4909.4(4) ?3, space group P21/c, Z = 4, ρcalcd = 1.507 g/cm3, R = 0.0556. The crystals of compound II are triclinic, a = 11.7784(3), b = 12.1760(3), c = 13.1922(2) ?, α = 85.5420(10)°, β = 87.9000(10)°, γ = 70.3680(10)°, V = 1776.46(7) ?3, space group P
, Z = 1, ρcalcd = 1.444 g/cm3, R = 0.0350.
Original Russian Text ? E.A. Gerasimova, T.V. Utkina, E.V. Peresypkina, A.V. Virovets, T.G. Cherkasova, 2009, published in
Zhurnal Neorganicheskoi Khimii, 2009, Vol. 54, No. 5, pp. 751–755. 相似文献
8.
The crystal of [Ni(dien)2]2[Mn(NCS)6]·H2O was synthesized and the structure of its single crystal was determined by X-ray diffraction. The crystal is monoclinic system, space group P21/c with a=16.544(3),b=15.137(2), c=17.334(3)?, β=99.90(1)°, V=4276.3(12)?3, Z=4, Dc=1.479g·cm-3, Mr=951.55, F(000)=1998, μ=1.489mm-1, R=0.0399, Rw=0.0958. IR was also determined. 相似文献
9.
B. Liu J. Gao J. Wang Y. F. Wang R. Xu P. Hu L. Q. Zhang X. D. Zhang 《Russian Journal of Coordination Chemistry》2009,35(6):422-428
The title complexes, K[Dy(Edta)(H2O)3] · 3.5 H2O (I) (H4Edta = ethylenediamine-N,N,N′,N′-tetraacetic acid), (NH4)3[Dy(Ttha)] · 5H2O (II) (H6Ttha = triethylenetetramine-N, N,N′,N″,N‴,N‴-hexaacetic acid), and NH4[Dy(Cydta)(H2O)2] · 4.5H2O (III) (H4Cydta = trans-1,2-cyclohexanediamine-N,N,N′,N′-tetraacetic acid), were prepared, and their compositions and structures were determined
by elemental analyses and single-crystal X-ray diffraction techniques, respectively. In complex I, the Dy3+ ion is nine-coordinated by an Edta ligand and three water molecules, yielding a pseudo-monocapped square antiprismatic conformation,
and the complex crystallizes in the orthorhombic crystal system with space group Fdd2. The crystal data are as follows: a = 19.751(7), b = 35.573(12), c = 12.227(4) ?, V = 8591(5) ?3, Z = 16, space group Fdd2 ρc = 1.877 g/cm3, μ = 3.742 mm−1, F(000) = 4800, R = 0.0259, and wR = 0.0616 for 3218 observed reflections with I ≥ 2σ(I). For complex II, the Dy3+ ion is nine-coordinated by a Ttha ligand, yielding a pseudo-monocapped square antiprismatic conformation, and the complex
crystallizes in the monoclinic crystal system with space group P21/c. In addition, there is a free non-coordinate carboxyl group (-CH2COO−) in the [Dy(Ttha)]3− complex anion. The crystal data are as follows: a = 10.353(3), b = 12.746(4), c = 23.141(7) ?, β = 91.005(5)°, V = 3053.2(15) ?3, Z = 4, space group P21/c ρc = 1.730 g/cm3, μ = 2.532 mm−1, F(000) = 1620, R = 0.0332 and wR = 0.0924 for 5390 observed reflections with I ≥ 2σ(I). For complex III, the Dy3+ ion is eight-coordinated by a ligand Cydta and two water molecules, yielding a distorted square antiprismatic conformation,
and the complex crystallizes in the triclinic system with space group P
. The crystal data are as follows: a = 8.604(3), b = 10.012(4), c = 14.369(6) ?, α = 88.330(6)°, β = 75.363(6)°, γ = 88.285(6)°, space group P
V = 1196.9(8) ?3, Z = 2, ρc = 1.776 g/cm3, μ = 3.194 mm−1, F(000) = 644, R = 0.0445 and wR = 0.1041 for 3931 observed reflections with I ≥ 2σ(I).
The article is published in the original. 相似文献
10.
G. Z. Kaziev A. V. Oreshkina S. Holguin Quinones A. F. Stepnova V. E. Zavodnik Antonio de Ita D. A. Alekseev 《Russian Journal of Coordination Chemistry》2010,36(12):887-890
The sodium hydrogen oxovanadate [Na2(H2O)8] 2H2[V10O28] · 4H2O was synthesized and studied by TGA, X-ray diffraction, and NMR and IR spectroscopy. The crystals are triclinic, space group
P
$
\bar 1
$
\bar 1
, a = 8.545(7) ?, b = 10.827(2) ?, c = 11.627(2) ?, α = 105.48(3)°, β = 99.38(3)°, γ = 101.29(3)°, V = 989.9(3) ?3, ρ(calcd) = 2,381 g/cm3, Z= 1. 相似文献
11.
A. V. Oreshkina G. Z. Kaziev S. Holguin Quinones A. I. Stash P. A. Shipilova 《Russian Journal of Coordination Chemistry》2011,37(11):845-848
The complex [Na2(H2O)10][Na(H2O)3]2[MnW6O18(OH)6] · 6H2O was synthesized and studied by mass spectrometry, thermogravimetry, IR spectroscopy, X-ray diffraction. The crystals are
monoclinic, space group P21/n, a = 11.698(2), b = 11.670(2), c = 14.652(3) ?, β = 102.52(3)°, V = 1952.7(7) ?3, ρ(calcd.)= 3.45 g/cm3, Z = 2. 相似文献
12.
J. Wang P. Hu B. Liu R. Xu X. Wang D. Wang L. Q. Zhang X. D. Zhang 《Journal of Structural Chemistry》2011,52(3):568-574
The NH4[EuIII(Cydta)(H2O)2]·4.5H2O (I) (H4Cydta = trans-1,2-cyclohexanediamine-N,N,N′,N′-tetraacetic acid) and K2[Eu2III(pdta)2(H2O)2]·6H2O (II) (H4pdta = propylenediamine-N,N,N′,N′-tetraacetic acid) complexes are prepared by heat-refluxing and acidity-adjusting methods
respectively, and their composition and structures are determined by elemental analyses and single crystal X-ray diffraction
techniques. The complex I has a mononuclear structure, crystallizes in the triclinic crystal system with the P[`1]P\bar 1 space group; the central EuIII ion is eight-coordinated by a hexadentate Cydta ligand and two water molecules. The crystal data are as follows: a = 8.653(4) ?, b = 10.041(4) ?, c = 14.405(6) ?, α = 88.469(6)°, β = 74.892(6)°, γ = 88.256(7)°, V = 1207.5(9) ?3, Z = 1, D
c = 1.731 g/cm3, μ = 2.669 mm−1, F(000) = 638, R = 0.0257, and wR = 0.0667 for 3807 observed reflections with I ≥ 2σ(I). The EuN2O6 part in the [EuIII(Cydta)(H2O)2]− complex anion forms a pseudo-square antiprismatic polyhedron. The complex II is eight-coordinate as well; it is a binuclear structure that crystallizes in the monoclinic crystal system with the C
2/c space group; half of the central EuIII ion is coordinated by two nitrogen atoms from one hexadentate pdta ligand and six oxygen atoms from the same pdta ligand,
one water molecule and carboxylic group from the neighboring pdta ligand respectively. The crystal data are as follows: a = 19.866(3) ?, b = 9.1017(12) ?, c = 21.010(3) ?, β = 104.972(2)°, V = 3670.1(9) ?3, Z = 8, D
c = 2.046 g/cm3, μ = 3.710 mm−1, F(000) = 2240, R = 0.0213 and wR = 0.0460 for 4183 observed reflections with I ≥ 2σ(I). Otherwise, the two EuN2O6 parts in the [Eu2III(pdta)2(H2O)2]2− complex anion form a pseudo-square antiprismatic polyhedron. 相似文献
13.
M. P. Yutkin M. S. Zavakhina D. G. Samsonenko V. P. Fedin 《Journal of Structural Chemistry》2011,52(2):365-370
Two metal-organic coordination polymers [Cu(bpy)2(H2O)2](NO3)2·4.5C2H5OH (1) and [Cu2(bpy)(H2O)(L-pha) 2](NO3)2·H2O (2) (L-Hpha = L-phenylalanine, bpy = 4,4′-bipyridyl) are prepared by slow evaporation of an aqueous alcoholic solution of copper nitrate,
L-phenylalanine, and 4,4′-bipyridyl. The structure and composition of the obtained compounds are determined by single crystal
XRD. The framework of compound 1 is positively charged and forms two types of intersecting channels. Compound 2 is a homochiral metal-organic coordination polymer whose structure contains L-phenylalanine anions. 相似文献
14.
I. V. Kalinina D. G. Samsonenko Z. A. Starikova A. A. Korlyukov J. Lipkowski V. P. Fedin M. Yu. Antipin 《Journal of Structural Chemistry》2005,46(1):137-146
[Ni(dien)2]3[W4S4(CN)12]·20H2O and [Cu(dien)(Hdien)]2[W4S4(CN)12]·8H2O were obtained by evaporating water-ammonia solutions containing K6[W4S4(CN)12]·2H2O·2CH3OH, diethylene triamine, and NiCl2·6H2O or CuCl2·6H2O. The crystals of the complex compounds were obtained within 3 days. The complex compounds were characterized by IR spectroscopy
and by XRD and elemental analysis. XRD data for the complex [Ni(dien)2]3[W4S4(CN)12]·20H2O are: triclinic system,
, a = 14.671(2) Å, b = 16.448(3) Å, c = 19.814(3) Å, α = 67.841(3)°, β = 68.996(3)°, γ = 67.527(3)°, V = 3961.6(11) Å3, Z = 2; for the complex [Cu(dien)(Hdien)]2[W4S4(CN)12]·8H2O: monoclinic system, C2/c, a = 37.4290(1) Å, b = 17.7370(1) Å, c = 25.7370(2) Å, β = 105.3840(2)°, V = 16474.02(16) Å3, Z = 12.
Original Russian Text Copyright ? 2005 by I. V. Kalinina, D. G. Samsonenko, Z. A. Starikova, A. A. Korlyukov, J. Lipkowski,
V. P. Fedin, and M. Yu. Antipin
__________
Translated from Zhurnal Strukturnoi Khimii, Vol. 46, No. 1, pp. 139–148, January–February, 2005. 相似文献
15.
A. S. Antsyshkina G. G. Sadikov V. G. Sevastyanov V. S. Popov P. A. Ignatov A. V. Churakov E. P. Simonenko N. T. Kuznetsov V. S. Sergienko 《Russian Journal of Inorganic Chemistry》2011,56(4):530-538
Tin coordination compounds [Sn(H2O)2Cl4] · 18C6 (I) and [Sn(H2O)2Cl4] · 18C6 · 2H2O (II) were synthesized and identified by IR spectroscopy, CH analysis, and X-ray powder diffraction. The crystal structures of
compounds I and II were determined. The crystals of I and II are orthorhombic; a = 16.871(1) ?, b = 7.7305(7) ?, c = 16.939(1) ?, Z = 4, space group Cmca for I; a = 14.206(2) ?, b = 20.376(3) ?, c = 8.319(1) A, Z = 4, space group Pna21 for II. The structural units of I and II are [Sn(H2O)2Cl4] · 18C6 complex molecules (in II, also water molecules of crystallization). The coordinated water molecules in I are trans and those in II are cis to each other. The structural units in the crystals of I and II are combined only by hydrogen bonds between water molecules and the crown-ether oxygen atoms with the formation of the chain
structure. Complex I was tested as the precursor of tin dioxide in a chemical vapor deposition (CVD) process. The morphology of the obtained film
was studied by atomic force microscopy (AFM) and scanning electron microscopy (SEM), and the composition was studied by laser
mass spectrometry for elemental analysis. 相似文献
16.
The title compound [Mn(phendione)(PDC)(H2O)2]·2H2O (H2PDC=pyridine-2,6-dicarboxylic acid) has been prepared in aqueous solution and characterized by single X-ray diffraction structure determination, elemental analysis, IR spectroscopy, and thermal analyses. The compound crystallizes in Monoclinic system, space group C2/c, a=1.017 51(11) nm, b=1.483 25(11) nm, c=1.461 21(13) nm, β=109.86(10)°, V=2.074 1(3) nm3, Z=4, F(000)=1 028, μ=0.701 mm-1, Dc=1.609 g·cm-3, R1=0.028 9, wR2=0.078 8 [I>2σ(I)]. Crystal structure reveals that complex consists of one-dimensional chain framework bridged by hydrogen bonds that formed by uncoordinated water and oxygen atom of carboxyl group in PDC2-. Furthermore, the complexes form a three-dimensional super-molecular structure through hydrogen bonds. CCDC: 648570. 相似文献
17.
E. A. Kovalenko D. Yu. Naumov V. P. Fedin A. Müller 《Russian Journal of Coordination Chemistry》2012,38(3):153-158
The chain coordination polymers [Na2(μ-H2O)(H2O)CB[5]]Cl2 · 6H2O (I), [Na3(μ-H2O)4(H2O)4(CNPy@CB[6])]Cl3 · 8H2O (II), and [Rb2(μ-H2O)2(CNPy@CB[6])]Cl2 · 8H2O (III) were prepared by heating (110°C) of a mixture of sodium or rubidium chloride, cucurbit[n]uril (CB[n], where n = 5, 6), 4-cyanopyridine, and water. According to X-ray diffraction data, binding of polynuclear cations with CB[n] in I–III occurs through coordination of the oxygen atoms of the cucurbit[n]uril portals to alkali metal atoms. Complexes I–III of the above composition isolated to the solid phase as supramolecular compounds with CB[n] were structurally characterized
for the first time. 相似文献
18.
E. E. Martsinko A. G. Pesaroglo L. Kh. Minacheva I. I. Seifullina V. S. Sergienko A. V. Churakov 《Russian Journal of Inorganic Chemistry》2011,56(2):190-196
A procedure for the synthesis of the heteropolymetallic germanium(IV) and copper(II) complex with trihydroxyglutaric acid
(H5Thgl) [Cu(H2O)6][Ge(μ3-Thgl)2{Cu(H2O)2}2] · 2H2O (I) was developed and the complex was isolated for the first time in the solid state. The product was characterized by elemental
analysis, powder X-ray diffraction, thermogravimetry, and IR spectroscopy. Compound I was studied by X-ray crystallography. The crystals are monoclinic, a = 10.216(2)?, b = 12.272(3)?, c = 10.679(2)?, β = 93.13(3)°, V = 1336.9(5)?3, Z = 2, space group P21/n, R1 = 0.0261 for 3616 reflections with I > 2σ(I). Compound I is composed of bimetallic [Ge(μ3-Thgl)2{Cu(H2O)2}2]2− anions, [Cu(H2O)6]2+ cations, and water molecules of crystallization. In the centrosymmetric trinuclear complex anion, the Ge(1) atom is bound
by two fully deprotonated bridging ligands to two Cu atoms. The Ge(1) atom is coordinated at distorted octahedron vertices
by six hydroxyl oxygen atoms of two Thgl5− ligands (average Ge(1)-O distance is 1.8874(13)?). The Cu coordination polyhedron in the anion is an extended square pyramid
(4 + 1) formed by the bridging hydroxyl oxygen atom (Cu(1)-O(3), 2.0039(12) ?), two carboxyl oxygen atoms (average CU(1)-O
distance is 1.9674(14)?) of two Thgl5− ligands, and two water oxygen atoms in equatorial and axial positions (Cu(1)-O, 1.9761(13) and 2.3643(14)?, respectively).
In the centrosymmetric cation, the Cu coordination polyhedron is an extended square bipyramid (4 + 2). The equatorial Cu-O
bond length is 1.9428(14) ? (average), the axial Cu-O bond is elongated to 2.5151(14)?. The cations and anions are combined
by H-bonds. 相似文献
19.
J. Wang P. Hu B. Liu R. Xu X. Wang L. Xu L. Q. Zhang X. D. Zhang 《Russian Journal of Coordination Chemistry》2010,36(1):66-72
In this work, the title complexes, NH4[ErIII(Cydta)(H2O)2] · 4.5H2O (I) (H4Cydta = trans-1,2-cyclo-hexanediamine-N,N,N′,N′-tetraacetic acid) and (NH4)2[Er2III(Pdta)2(H2O)2] · 2H2O (II) (H4Pdta= propylene-diamine-N,N,N′,N′-tetraacetic acid), were prepared, respectively, and their composition and structures were
determined by elemental analyses and single-crystal X-ray diffraction techniques. Complex I selects a mononu-clear structure with pseudosquare antiprismatic geometry crystallized in the triclinic crystal system with
space group $
P\bar 1
$
P\bar 1
and the central Er3+ ion is eight-coordinated by the hexadentate Cydta ligand and two water molecules. The crystal data are as follows: a = 8.568(3), b = 10.024(3), c = 14.377(4) ?, α = 88.404(4)°, β = 75.411(4)°, γ = 88.332(4)°, V = 1194.2(6) ?3, Z = 1, ρ
c
= 1.793 g/cm3, μ = 3.586 mm−1, F(000) = 648, R = 0.0257, and wR = 0.0667 for 4169 observed reflections with I ≥ 2σ(I). Complex II is eight-coordinated as well, which selects a binuclear structure with two pseudosquare antiprismatic geometry and crystallizes
in the monoclinic crystal system with space group P21/n. The central Er3+ ion is coordinated by two nitrogens and four oxygens from one hexadentate Pdta ligand. Besides, two oxygens come from one
carboxylic group of the neighboring Pdta ligand and one water molecule, respectively. The crystal data are as follows: a = 12.7576(8), b = 9.3151(6), c = 14.3278(9) ?, β = 96.1380(10)°, V = 1692.93(19) ?3, Z = 4, ρ
c
= 2.054 g/cm3, μ = 5.015 mm−1, F(000) = 1028, R= 0.0228, and wR = 0.0534 for 2984 observed reflections with I ≥ 2σ(I). 相似文献
20.
A DTA study of thermal decomposition of (NH4)2[Ru(NO)Cl5] in helium atmosphere has been carried out, a synthetic procedure for preparation of the trans-diammine complex mer-[Ru(NO)(NH3)2Cl3] (I) with yield ∼70% has been developed. On re-crystallization of I from aqueous solution a trans-aquanitroso complex [Ru(NO)(NH3)2Cl2(H2O)]Cl·H2O (II) has been isolated. The structures of the compounds have been determined by single crystal X-ray diffraction: space group
Pbcn, a = 6.607(1) ? b = 11.255(2) ? c = 9.878(2) ? (I) and space group Ima2, a = 8.3032(3) ?, b = 8.0890(2) ?, c = 15.9192(5) ? II).
Original Russian Text Copyright ? 2008 by M. A. Il’in, V. A. Emel’yanov, and I. A. Baidina
__________
Translated from Zhurnal Strukturnoi Khimii, Vol. 49, No. 6, pp. 1128–1136, November–December, 2008. 相似文献