Hybrid materials based on transition metal–BTC–benzimidazole: solvent assisted crystallographic and structural switching

CrystEngComm ◽  
2018 ◽  
Vol 20 (41) ◽  
pp. 6602-6612 ◽  
Author(s):  
Ranjay K. Tiwari ◽  
J. N. Behera
Keyword(s):  
Crystal Structure ◽  
Transition Metal ◽  
Structure Analysis ◽  
Hybrid Materials ◽  
Coordination Polymers ◽  
Three Dimensional ◽  
Hierarchical Structures ◽  
Crystal Structure Analysis ◽  
Solvothermal Condition ◽  
1D Chain

Five transition metal–BTC–BIm based coordination polymers with hierarchical structures were synthesized under hydro/solvothermal condition. Crystal structure analysis of the compounds showed that 1 forms a 1D chain, 2 and 3 have 2D layers, while 4 and 5 have three-dimensional architectures.

scholarly journals IPR Beamline for Macromolecular Assemblies at SPring-8 (BL44XU)

2014 ◽  
Vol 70 (a1) ◽  
pp. C1684-C1684
Author(s):  
Eiki Yamashita ◽  
Akifumi Higashiura ◽  
Masato Yoshimura ◽  
Kazuya Hasegawa ◽  
Yukito Furukawa ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Structure Analysis ◽  
Diffraction Data ◽  
High Speed ◽  
Protein Crystallography ◽  
Three Dimensional ◽  
Crystal Structure Analysis ◽  
Standard Type ◽  
Double Crystal ◽  
Macromolecular Assemblies

Biological macromolecular assemblies play significant roles in many biological reaction systems, including energy transfer, protein synthesis, protein degradation and signal transduction. A detailed understanding of the functions of the macromolecular assemblies requires information derived from three-dimensional atomic structures. X-ray crystal structure analysis is one of the most powerful methods to determine the three-dimensional structures of macromolecular assemblies at atomic level. Since features of crystals of biological macromolecular assemblies are extremely weak diffraction power and narrow space between the diffraction spots, it is essential to use high brilliance and high paralleled synchrotron radiation for diffraction data collection from crystals of biological macromolecular assemblies. The Institute for Protein Research (IPR) of Osaka University is operating a beamline for crystal structure analysis of biological macromolecular assemblies at SPring-8 (BL44XU). This beamline is designed to collect high quality diffraction data from biological macromolecular assembly crystals with large unit cells. The light source of this beamline is a SPring-8 standard type in-vacuum undulator. Liquid nitrogen cooled double crystal monochromator and horizontal focusing mirror are used as the optical components. BSS (Beamline Scheduling Software), which is SPring-8 protein crystallography beamline standard GUI, is installed to unify user operation throughout protein crystallography beamlines in the SPring-8. We have recently upgraded to a high speed air-bearing goniostat and installed a high performance CCD detector, MX-300HE. Present status and future plan of the beamline will be presented.

1-Thiooxamat, NH2C(O)C(S)O , und 2-Thiooxamat, NH2C(S)CO2 als Liganden in Übergangsmetall-Komplexen. Die Strukturen von [Fe(2-thiox)2(H2O)2], [Zn(2-thiox)2(H2O)] und [Zn(1-thiox)2(H2O)]·H2O/ 1-Thiooxamate, NH2C (O)C(S)O– , and 2-Thiooxamate, NH2C(S)CO2–, as Ligands in Transition Metal Complexes. Crystal Structures of [Fe(2-thiox)2(H2O)2], [Zn(2-thiox)2(H2O)] and [Zn(1-thiox)2(H2O)]·H2O

1985 ◽  
Vol 40 (8) ◽  
pp. 1068-1072 ◽  
Author(s):  
Johannes Bertels ◽  
Rainer Mattes
Keyword(s):  
Crystal Structure ◽  
Transition Metal ◽  
Metal Complexes ◽  
Crystal Structures ◽  
Structure Analysis ◽  
Transition Metal Complexes ◽  
Crystal Structure Analysis

AbstractTransition metal complexes of the ligands 1-thiooxamate and 2-thiooxam ate have been prepared. According to crystal structure analysis of Fe(2-thiox)2(H2O)2, Zn(2-thiox)2(H2O) and Zn(1-thiox)2(H2O)2 these ligands act as O .S-donors and form pentaatomic chelaterings. Both Zn-complexes are trigonal-bipyramidally coordinated.

The crystal structure of [Pt(tetraethyldiethylenetriamine)I]I

1980 ◽  
Vol 58 (7) ◽  
pp. 664-668 ◽  
Author(s):  
Rosemary C. E. Durley ◽  
William L. Waltz ◽  
Beverly E. Robertson
Keyword(s):  
Crystal Structure ◽  
Least Squares ◽  
Structure Analysis ◽  
Three Dimensional ◽  
Crystal Structure Analysis ◽  
Unit Cell ◽  
Platinum Atom ◽  
Full Matrix ◽  
Square Planar ◽  
Dimensional Crystal

Crystals of [Pt(Et4dien)I]I, where Et4dien = (C2H5)2NC2H4NHC2H4N(C2H5)2, have been prepared. A three dimensional crystal structure analysis has been carried out in a monoclinic unit cell having a = 12.565(8), b = 7.576(6), c = 21.040(15) Å, β = 91.12(2)° and space group P21/c, Z = 4. Full-matrix least-squares using 1982 independent, observed reflections converged at R = 0.067. The platinum atom has square-planar co-ordination. The orientation of the four ethyl groups with respect to the plane of the ligand is similar to that observed in related molecules, in spite of a lack of similarity of the molecular packing. The iodide ion appears to be hydrogen bonded to the ligand.

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