Results 261 to 270 of about 16,706 (322)
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Tautomerism of Cyanamide

Nature, 1944
THE constitution of cyanamide, since its first synthesis in 1851, has been the subject of a very large number of publications. Whereas the chemical properties of this substance point to the structures NH2CN and NH : C : NH, its physical properties are held1 to favour the former.
H. A. Rees, L. Hunter
openaire   +2 more sources

Cyanamides as π-Hole Donor Components of Structure-Directing (Cyanamide)···Arene Noncovalent Interactions

Crystal Growth & Design, 2020
Crystallization of the newly prepared copper(II) clusters [Cu4X6O(NCNMe2)4] (X = Cl 1 or Br 2) from toluene and styrene solutions afforded crystalline adducts 1·4PhMe, 1·4PhCH=CH2, 2·4PhMe, and 2·4...
Yulia N. Toikka   +5 more
semanticscholar   +1 more source

ChemInform Abstract: THE DIMERS OF CYANAMIDE

Chemischer Informationsdienst, 1983
Abstract Ab initio calculations have been performed on various dimeric forms of cyanamide. The “nondissociative” dimerization of cyanamide leads to cyclic molecules all of which are unstable with respect to cyanamide. However, the molecules produced by “dissociative” dimerization are stable relative to cyanamide. Dicyandiamide is found to be the most
openaire   +3 more sources

Electrochemical Trifluoromethylation/Bicyclization of N-Cyanamide Alkenes: Synthesis of Bicyclic Amidine Derivatives.

Journal of Organic Chemistry
An anodically oxidizing trifluoromethylation cascade of N-cyanamide alkene bearing two electronically differentiated olefin moieties was reported, in which various N-unsaturated acyl cyanamide alkenes and CF3SO2Na acting as readily available starting ...
Zhifeng Yan   +3 more
semanticscholar   +1 more source

Recent Advances in Cyanamide Chemistry: Synthesis and Applications

open access: yesMolecules, 2017
The application of alkyl and aryl substituted cyanamides in synthetic chemistry has diversified multi-fold in recent years. In this review, we discuss recent advances (since 2012) in the chemistry of cyanamides and detail their application in ...
Shreesha V Bhat, Pallavi Sharma
exaly   +2 more sources

Computer Simulation Investigation of the Adsorption of Cyanamide on Amorphous Ice at Low Temperatures

, 2020
The adsorption of cyanamide at the surface of low density amorphous (LDA) ice is studied by grand canonical Monte Carlo simulations in the temperature range of 50–200 K, under conditions characteri...
P. Jedlovszky, Réka Horváth, M. Szőri
semanticscholar   +1 more source

Determination of Calcium Cyanamide in Crude Calcium Cyanamide

1981
Abstract : A rapid method of analysis for the assay of crude calcium cyanamide is proposed for the monitoring of calcium cyanamide in the nitroguanidine continuous process line. The proposed method consists of (1) micomilling the crude material, (2) extracting the milled material with a sodium acetate/acetic acid buffer, and (3) determining the ...
Charles Ribaudo, Francis X Murphy
openaire   +1 more source

Vibrational Spectra and the Inversion Phenomenon in Cyanamide and Deuterated Cyanamide

The Journal of Chemical Physics, 1963
The infrared and Raman spectra of H2NCN and D2NCN have been examined in the liquid state in the region of 2.5 to 35 μ. Polarization data imply a planar configuration, but the experimental data for the region beyond 12 μ are inconsistent with this. The observed product rule ratio for the symmetric N–H stretch, NH2 deformation, N–C and C≡N stretches are ...
Farrell B. Brown, William H. Fletcher
openaire   +2 more sources

Lattice Vibrations of Molecular Crystals. II. Cyanamide and Cyanamide-d2

The Journal of Chemical Physics, 1968
The far-infrared spectra (33–500 cm−1) of crystalline cyanamide (NH2CN) and cyanamide-d2 have been recorded with polyethylene and silicon sample support plates. The laser Raman spectra have also been recorded from 40–1600 cm−1 for both molecules. No evidence was found for the inversion doubling and resultant low-frequency components of the NH2 and ND2 ...
F. G. Baglin, J. R. Durig, M. Walker
openaire   +2 more sources

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