Primary Class: 552/278 Other Classes: 552/276 View Patent Images: Download PDF 2105978 PDF help Description: This invention relates to carbon compounds and more particularly to derivatives of violanthrones and their preparation. It especially appertains to the substances produced by tre-ting ...
(a) Dihydric phenols e.g. resorcinol and hydroquinone. Both are more reactive than phenol and can lead to some cross-linking at the pre-polymer production stage. It is also possible to introduce these compounds at the cross-linking stage to provide different cross-linking paths. These also ...
The first demonstration that CO can bind to an actinide in a similar manner to its binding to transition-metal cations. Article CAS Google Scholar Parry, J., Carmona, E., Coles, S. & Hursthouse, M. Synthesis and single-crystal X-ray diffraction study on the first isolable carbonyl ...
Quantitative evaluation of surfactant-stabilized single-walled carbon nanotubes: dispersion quality and its correlation with zeta potential. J. Phys. Chem. C 112, 10692–10699 (2008). Article CAS Google Scholar Naumov, A. V., Ghosh, S., Tsyboulski, D. A., Bachilo, S. M. & Weisman, ...
Loftus, and D. Whittaker: The Nmr Spectra and Conformations of Cyclic Compounds IX — Conformational Studies of Bicyclo[3.1.0]hexane Derivatives by 13C Nmr. Org. Magn. Res. 6, 184 (1974). Article CAS Google Scholar Ref. 10, p. 110ff. Google Scholar Nishida, T.: Unpublished data. ...
Therefore, precipitation samples were collected at four sites over the GB to investigate the characteristics of the molecular composition, light absorption, and fluorescence compounds of WSOC in precipitation by the UV–vis absorption spectra and EEM, and FT-ICR MS coupled with ESI. The sources of...
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3. Use and Manufacturing3.1 Definition ChEBI: A one-carbon compound substituted by 4 bromo groups. 3.2 Description Carbon tetrabromide, with the chemical formula CBr4, has the CAS number 558-13-4. It appears as a colorless solid with a sweet odor. Its basic structure consists of four ...
1 its crystal structure “…remains a mystery”. First crystallographic evidence for the presence of fcc-carbon in synthetic diamonds was reported in the classical work of ref. 2. The X-ray diffraction (XRD) from diamond grits obtained at high temperatures and ultra-high pressures showed, apart...
Built upon this strained four-membered ring ketone activation, we are looking into other more common ketone compounds. We also expect this study to encourage further investigations into organocatalytic strategies for new C–C activations and highly economical syntheses. Methods Materials. For 1H, 13C...