Further insight into magnetostructural correlations in binuclear copper(II) species related to methemocyanin: x-ray crystal structure of 1,2-.mu.-nitrito complex

1985 ◽  
Vol 24 (19) ◽  
pp. 2914-2919 ◽  
Author(s):  
Vickie McKee ◽  
Maruta Zvagulis ◽  
Christopher A. Reed
Keyword(s):  
Crystal Structure ◽  
Binuclear Copper ◽  
X Ray ◽  
Insight Into

scholarly journals Discovery of Fe7O9: a new iron oxide with a complex monoclinic structure

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Ryosuke Sinmyo ◽  
Elena Bykova ◽  
Sergey V. Ovsyannikov ◽  
Catherine McCammon ◽  
Ilya Kupenko ◽  
...  
Keyword(s):  
Applied Sciences ◽  
Crystal Structure ◽  
Iron Oxide ◽  
Iron Oxides ◽  
Industrial Applications ◽  
Ambient Conditions ◽  
X Ray Diffraction ◽  
X Ray ◽  
High Pressure High Temperature ◽  
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Abstract Iron oxides are fundamentally important compounds for basic and applied sciences as well as in numerous industrial applications. In this work we report the synthesis and investigation of a new binary iron oxide with the hitherto unknown stoichiometry of Fe7O9. This new oxide was synthesized at high-pressure high-temperature (HP-HT) conditions, and its black single crystals were successfully recovered at ambient conditions. By means of single crystal X-ray diffraction we determined that Fe7O9 adopts a monoclinic C2/m lattice with the most distorted crystal structure among the binary iron oxides known to date. The synthesis of Fe7O9 opens a new portal to exotic iron-rich (M,Fe)7O9 oxides with unusual stoichiometry and distorted crystal structures. Moreover, the crystal structure and phase relations of such new iron oxide groups may provide new insight into the cycling of volatiles in the Earth’s interior.

Crystal Structure and Spectroscopic Behaviour of a Binuclear Copper(II) Complex of Mefenamic Acid and Dimethylsulfoxide

1998 ◽  
Vol 53 (8) ◽  
pp. 871-874 ◽  
Author(s):  
G. Facchin ◽  
M. H. Torre ◽  
E. Kremer ◽  
O. E. Piro ◽  
E. J. Baran
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Mefenamic Acid ◽  
Electronic Spectra ◽  
Anthranilic Acid ◽  
Binuclear Copper ◽  
Triclinic Space Group ◽  
Spectroscopic Behaviour ◽  
Space Group ◽  
X Ray

Abstract The crystal structure of the binuclear Cu(II) complex [Cu(mef)2DMSO]2 (mef = deprotonated N-2,3-dimethylphenyl-anthranilic acid; DMSO = dimethylsulfoxide) has been determined by single-crystal X-ray diffractometry. It crystallizes in the triclinic space group P1̄ with Z = 1. IR and electronic spectra of the compound are also discussed briefly.

Influence of crystal structure, ligand environment and morphology on CoL-edge XAS spectral characteristics in cobalt compounds

2015 ◽  
Vol 22 (6) ◽  
pp. 1450-1458 ◽  
Author(s):  
D. K. Bora ◽  
X. Cheng ◽  
M. Kapilashrami ◽  
P. A. Glans ◽  
Y. Luo ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Electronic Structure ◽  
Metal Ion ◽  
Spectral Characteristics ◽  
Branching Ratio ◽  
Central Metal ◽  
X Ray ◽  
Cobalt Compounds ◽  
X Ray Absorption ◽  
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The electronic structure of a material plays an important role in its functionality for different applications which can be probed using synchrotron-based spectroscopy techniques. Here, various cobalt-based compounds, differing in crystal structure, ligands surrounding the central metal ion and morphology, have been studied by soft X-ray absorption spectroscopy (XAS) at the CoL-edge in order to measure the effect of these parameters on the electronic structure. A careful qualitative analysis of the spectral branching ratio and relative intensities of theL3andL2peaks provide useful insight into the electronic properties of compounds such as CoO/Co(OH)2, CoCl2.6H2O/CoF2.4H2O, CoCl2/CoF2, Co3O4(bulk/nano/micro). For further detailed analysis of the XAS spectra, quantitative analysis has been performed by fitting the spectral profile with simulated spectra for a number of cobalt compounds using crystal field atomic multiplet calculations.

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