experiments is NMP > AC > DMF > THF > DCM > CF.
The effect of solvents on FT–IRspectra and NMR spectra of poly(caprolactone) electrospun fiber
We re-analyze morphologies of electrospun PCL nonwoven mats produced with
for 30 min at 27 °C or at various elevated temperatures (50–200 °C). After cooling down to room temperature, FT–IRspectra were obtained at a 2 cm −1 resolution after the accumulation of 500 scans.
Authors:C. Tănase, Lucia Odochian, N. Apostolescu, and A. Pui
placed into a platinum crucible, at a heating rate of 10 K/min within the 30–900 °C temperature range.
The gaseous species produced by the thermal degradation of the sample were identified by means of the standard IRspectra.
Authors:Li-Fang Song, Cheng-Li Jiao, Chun-Hong Jiang, Jian Zhang, Li-Xian Sun, Fen Xu, Qing-Zhu Jiao, Yong-Heng Xing, F. L. Huang, Yong Du, Zhong Cao, Fen Li, and Jijun Zhao
Coordination environment of Mg atom
FT-IRspectra were recorded on a Nicolet 380 FT-IR spectrometer using KBr pellet in the wavenumber range of 4000–400 cm −1 . ν : 3431 (m), 2929 (w), 1678 (s), 1655 (s), 1619 (s
Authors:Rakesh Kumar, Anil Kumar, and Ashok Khanna
–Joyner–Halenda (BJH) theory. The specific surface area was determined by using the Brunauer–Emmett–Teller (BET) equation. The FT-IRspectra of the catalysts were recorded on Bruker-IFS113V FT-IR apparatus in the range 4,000–400 cm −1 . The samples were ground with KBr
Authors:Chun-Hong Jiang, Li-Fang Song, Jian Zhang, Li-Xian Sun, Fen Xu, Fen Li, Qing-Zhu Jiao, Zhen-Gang Sun, Yong-Heng Xing, Yong Du, Ju-Lan Zeng, and Zhong Cao
-matrix least-squares method implemented in SHELXTL-97 [ 14 ]. All the non-hydrogen atoms were refined anisotropically. Hydrogen atoms were added theoretically. FT-IRspectra were recorded on a Nicolet 380 FT-IR spectrometer using KBr pellet in the wavelength
Authors:Zuzana Bujdošová, Katarína Győryová, Jana Kovářová, Daniela Hudecová, and Ladislav Halás
New zinc(II) salicylate complex compounds of general formula (X-C6H3-2-(OH)COO)2Zn · Ln · xH2O (where X = H, 5-Cl; L = theophylline, urea; n = 2, 4; x = 1, 2, 4) were prepared and their thermal, spectral and biological properties were studied. It was found that the thermal
decomposition of hydrated compounds starts with the release of water. During the thermal decomposition of anhydrous compounds,
the release of salicylic acid, theophylline, urea, CO2, H2O and C6H5Cl takes place. Zinc oxide was found as the final product of the thermal decomposition heated up to 900 °C. The complexes
were tested against bacteria, yeasts and filamentous fungi. The highest biological activity show 5-chlorosalicylate compounds.
Authors:D. Czakis-Sulikowska, A. Czylkowska, J. Radwańska-Doczekalska, R. Grodzki, and E. Wojciechowska
New mixed-ligands complexes with empirical formulae: M(2,4′-bpy)2L2�H2O (M(II)Zn, Cd), Zn(2-bpy)3L2�4H2O, Cd(2-bpy)2L2�3H2O, M(phen)L2�2H2O (where M(II)=Mn, Ni, Zn, Cd; 2,4′-bpy=2,4′-bipyridine, 2-bpy=2,2′-bipyridine, phen=1,10-phenanthroline, L=HCOO−) were prepared in pure solid state. They were characterized by chemical, thermal and X-ray powder diffraction analysis, IR
spectroscopy, molar conductance in MeOH, DMF and DMSO. Examinations of OCO− absorption bands suggest versatile coordination behaviour of obtained complexes. The 2,4′-bpy acts as monodentate ligand; 2-bpy and phen as chelating ligands. Thermal studies were performed in static air atmosphere. When the temperature raised the dehydration
processes started. The final decomposition products, namely MO (Ni, Zn, Cd) and Mn3O4, were identified by X-ray diffraction.