Both Rigid Organic Ligands and pH-Controlled Three Keggin-Type Polyoxotungstates Derivates: Synthesis, Crystal Structure

2021 ◽  
Author(s):  
Feng-Xia Ma ◽  
Ya-Guang Chen ◽  
Jin-Ke Jiang ◽  
Hui Jiang ◽  
Han-Lin Zhao
Keyword(s):  
Crystal Structure ◽  
Organic Ligands ◽  
Keggin Type ◽  
Ph Controlled

Crystal structure of Aquatetrakis(N-formylpiperidine)dioxouranium(VI) Bisperchlorate

1980 ◽  
Vol 33 (1) ◽  
pp. 69 ◽  
Author(s):  
GJ Honan ◽  
DL Kepert ◽  
SF Lincoln ◽  
JM Patrick ◽  
AH White
Keyword(s):  
Crystal Structure ◽  
Water Molecule ◽  
Single Crystal ◽  
Least Squares ◽  
Equatorial Plane ◽  
Title Compound ◽  
Organic Ligands ◽  
X Ray Diffraction ◽  
Uranyl Compounds ◽  
X Ray

The crystal structure of the title compound, [UO2{OCHN(CH2)5}4(H2O)] (ClO4)2, has been determined by single-crystal X-ray diffraction at 295 K and refined by least squares to a residual of 0.051 for 3113 'observed' reflections. Crystals are monoclinic, C2/c, a 16.945(2), b 12.711(2), c 17.304(2)Ǻ, β 107.76(1)°, Z 4. The uranyl moiety [U=O, 1.76(2)Ǻ] is five-coordinated in the equatorial plane by the water molecule [U-O, 2.436(8)Ǻ] and four organic ligands [U-O, 2.379(8), 2.396(13)Ǻ]. The angles O-U-O in the equatorial plane range from 70.3(3) to 73.6(3)°; O=U-0 range between 86.7 and 95.3°. The angle O=U=O is 177.8(3)°. The stereochemistry of seven-coordinate uranyl compounds is examined by using repulsion theory.

scholarly journals Crystal structure of tetraaquabis(8-chloro-9,10-dioxo-9,10-dihydroanthracene-1-carboxylato-κO1)cobalt(II) dihydrate

2014 ◽  
Vol 70 (10) ◽  
pp. m357-m358
Author(s):  
Wen-Juan Cai ◽  
Bo Liu ◽  
Feng-Yi Liu ◽  
Jun-Feng Kou
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Supramolecular Structure ◽  
Three Dimensional ◽  
Title Complex ◽  
Organic Ligands ◽  
Octahedral Coordination ◽  
Coordination Geometry ◽  
Π Interactions ◽  
Carboxylate Anions

In the title complex, [Co(C15H6ClO4)2(H2O)4]·2H2O, the CoIIion is bound by two carboxylate O atoms of two 5-chloro-9,10-anthraquinone-1-carboxylate anions and four water O atoms in atransconformation, forming an irregular octahedral coordination geometry. This arrangement is stabilized by intramolecular O—H...O hydrogen bonds between water and carboxylate. Further O—H...O hydrogen bonds between coordinating and non-coordinating water and carboxylate produce layers of molecules that extend parallel to (001). The organic ligands project above and below the plane. Those ligands of adjacent planes are interdigitated and there are π–π interactions between them with centroid–centroid distances of 3.552 (2) and 3.767 (2) Å that generate a three-dimensional supramolecular structure.

pH-controlled assembly of [ZnW12O40]6--based hybrids from 0D dimer to 2D network: synthesis, crystal structure, and photocatalytic performance in transformation of toluene into benzaldehyde

2021 ◽  
Author(s):  
Keke Guo ◽  
Yanli Yang ◽  
Si-Meng Dong ◽  
Fengyan Li ◽  
Xin-Ye Jiang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Metal Ions ◽  
Photocatalytic Performance ◽  
Building Blocks ◽  
Network Synthesis ◽  
Controlled Assembly ◽  
2D Network ◽  
Application Prospects ◽  
Ph Controlled

Polyoxometalate-based organic-inorganic hybrids have attracted considerable attention due to their fascinating structures and wide application prospects. In this work, using the same building blocks, ligands and metal ions (ZnW12O406-(ZnW12), 2,2'-bipy...

scholarly journals Crystal structure of catena-poly[bis(4,4′-dipyridylaminium-kN)-(μ2-germanowolframato-κ2O:O′)-(2,2′-bipyridine-κ2N,N′)copper(II)] with a Keggin-type heteropolyoxoanion, [Cu(C10H8N2)(C10H10N3)2][GeW12O40] ⋅ H2O

2018 ◽  
Vol 233 (6) ◽  
pp. 1007-1010
Author(s):  
Li-Zhou Wu
Keyword(s):  
Crystal Structure ◽  
Keggin Type

AbstractC30H30GeW12CuN8O41, triclinic, P1̄ (no. 2), a = 12.095(2) Å, b = 13.488(3) Å, c = 19.220(4) Å, α = 90.221(3)°, β = 92.188(3)°, γ = 108.966(3)°, V = 2962.8(10) Å3, Z = 2, Rgt(F) = 0.0624, wRref(F2) = 0.1622, T = 296(2) K.

Synthesis, X-ray Crystal Structure and Spectroscopic Characterization of a Hybrid Material Based on Glycine and α-Keggin Type Polyoxotungstate

2012 ◽  
Vol 22 (3) ◽  
pp. 141-142 ◽  
Author(s):  
Masoud Mirzaei ◽  
Hossein Eshtiagh-Hosseini ◽  
Mohsen Nikpour ◽  
Ahmad Gholizadeh ◽  
Afra Ebrahimi
Keyword(s):  
Crystal Structure ◽  
Hybrid Material ◽  
Spectroscopic Characterization ◽  
X Ray ◽  
Keggin Type
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