The r 伪 structures (corrected for harmonic vibrations) of thiophene and furan have been determined from the proton magnetic resonance spectra of oriented molecules including 13 C-satellites at natural abundance. Carbon-carbon, carbon-hydrogen and hydrogen-hydrogen internuclear distance ratios are ...
ROTATIONAL spectroscopy has proved a powerful method of studying the structures of heterocyclic molecules 1–6 . We have extended work of this type to molecules of isothiazole, 1,2,4-oxadiazole and imidazole. JH Griffiths,A Wardley,VE Williams,... - 《Nature》 被引量: 50发表: 1967年 The ...
9′-bicarbazole hole-transporting (HT) host, a 3′-(9-(3-cyanocarbazolyl))-5′-cyano-3-(9-carbazolyl)biphenyl electron-transporting (ET) host, in a volumetric ratio of 6:4. The chemical structures and energy levels of the constituent materials are displayed in Fig.2a. Electroluminescence...
The electronic structures of SrCu2O2and PbCu2O2have been studied by density functional theory calculations in conjunction with high resolution X-ray photoemission spectroscopy (XPS) and electron paramagnetic resonance spectroscopy (EPR). In both materials there is linear O–Cu–O coordination and a ba...
W. B. Ward: The Structures of Some Stress Metabolites from Solanum melongena. Can. J. Chem. 53, 3351 (1975). Article CAS Google Scholar Magnussen, G., and S. Thor6N: Fungal Extractives. VI. Structure of Lactaral, a New Sesquiterpene Furan-3-aldehyde from Lactarius, by Spectroscopic ...
The structure of the material was completely altered by heating to 600掳C, extensive aromatic structures being formed, but at 185掳C only one type of furan residue was rearranged. This structure was also attacked by exposing the powdered copolymer to concentrated hydrochloric and sulphuric acids. ...
The orthorhombic crystal structures of [MIII(NH3)6]Cl[SO4]·3H2O for M = Ru at 295 K and M = Ru or Co at 92 K have been determined by X-ray diffraction. Single-crystal ESR experiments on a ruthenium doped cobalt crystal at 77 K are interpreted simply in terms of a g tensor with...
16.Solution structures and behavior of trans-RuH(eta(1)-BH4) (binap)(1,2-diamine) complexes 机译:反式RuH(eta(1)-BH4)(binap)(1,2-diamine)配合物的溶液结构和行为 作者:Sandoval CA;Yamaguchi Y;Ohkuma TKato KNoyori R 期刊名称:《Magnetic Resonance in Chemistry: MRC》 | 2006年第1期 关键...
In a similar manner, Otsuka and coworkers crosslinked diarylbibenzofuranone based radical-type mechanophore on the surface of cellulose nanocrystals and silica networks, and the mechanophore displayed high sensitivity of mechanical stress due to the effective stress transmission between nanoparticles [38–...
[0018] It is an object of the invention to provide for new classes of functional MRI contrast agents that are activatable upon exposure to physiological agents. BRIEF DESCRIPTION OF THE DRAWINGS [0019] FIG. 1 depicts a number of structures of the invention. [0020] FIG. 2 depicts a number...