Authors:D. Ishii, T. Yamada, M. Nakagawa, T. Iyoda, and H. Yoshida
thermally induced structural transformation of a hydrogen-bonded crystal formed
from an amphoteric molecule of 6-[2-methoxy-4-(pyridylazo)phenoxy]hexanoic
acid MeO was studied using differential scanning calorimetry (DSC), Fourier
transform infrared spectroscopy (FTIR) and X-ray diffraction measurement (XRD).
Crystal form of the hydrogen-bonded crystal was measured by single crystal
four circle diffractometer (Mo-Kα radiation). As
a result, the crystal of MeO was stabilized by many C–H⋅⋅⋅O hydrogen
bonds, and the C–H⋅⋅⋅O hydrogen bonds were broken by thermal energy
reversibly. After transformation the supramolecular architecture was composed
of supramolecular polymer including free-rotation pentamethylene main chains.
Authors:S. Janarthanan, R. Sugaraj Samuel, Y. C. Rajan, P. R. Umarani, and S. Pandi
reports in the literature dealing with the crystalstructure of the semicarbazone compounds. The spectral and thermal analyses are very useful techniques for materials characterization. Therefore, many investigators have used these techniques for many
Authors:Barbara Barszcz, Joanna Masternak, Maciej Hodorowicz, and Agnieszka Jabłońska-Wawrzycka
this study, we report here the synthesis, spectroscopic analysis, X-ray crystallography and thermal behavior of cadmium(II) complex with 3-hydroxy-2-quinoxalinecarboxylate (L 1 ). We have not found the crystalstructure of [Cd(L 1 ) 2 (H 2 O) 2 ](H 2 O
Authors:Diego M. Gil, M. Carolina Navarro, M. Cristina Lagarrigue, J. Guimpel, Raúl E. Carbonio, and M. Inés Gómez
decomposition of Y[Fe(CN) 6 ]·4H 2 O and its structural characterization. We refine the crystalstructure of YFeO 3 using conventional X-ray powder diffraction (PXRD) by Rietveld Analysis. We also follow the decomposition process through IR spectroscopy
Authors:Aliakbar Dehno Khalaji, Smail Triki, and Debasis Das
, we report the synthesis, crystalstructure, spectral and thermal studies of a new 1D-chain copper(I) complex [Cu 2 ( μ -(3,4,5-MeO-ba) 2 bn)( μ -I) 2 ] n ( 1 ) ( Fig. 1 ).
Chemical structure s of the
Authors:Tea Mihelj, Zoran Štefanić, and Vlasta Tomašić
coordinates as a monodentate ligand and the crystalstructure consists of molecules of an anion and cation connected by hydrogen bonds [ 3 , 4 ]. Possible simultaneous interactions with o -nitro and p -nitro oxygens may lead to the formation of multidentate
Authors:S. Janarthanan, R. Sugaraj Samuel, Y. C. Rajan, and S. Pandi
fabrication, handy integration into devices, low dielectric constant, high electro-optic coefficient value, and resistance to laser damages. Polar organic crystals, which form noncentrosymmetric crystalstructures, are attracting much interest due to their