chemical bond energy 化学键能量chemical composition 化学成分chemical conditioning of mud 泥浆的化学处理chemical constitution 化学构造chemical deposit 化学沉积chemical equilibrium 化学平衡chemical equivalent 化学当量chemical erosion 化学侵蚀chemical evolution 化学进化chemical fossil 化学化石chemical mineralogy 化学矿物...
Binding Energy:Bond energy is the energy needed to break the bonds between atoms in a molecule. The molecule or a compound may have single (C-C), double (C=C), or triple (C ≡ C) covalent bonds. Compounds can also be formed by ...
Benzene C-C Bond Mirroring P-Energy on Double-SurfaceJanez SpringerARC JournalsJ. Springer, "Benzene C-C Bond Mirroring P-Energy on Double-Surface (Proto-Science Paper)", International Journal of Advanced Research in Physical Science (IJARPS), vol. 4, no. 8, pp. 12-15, 2017....
B. The bond dissociation energy of the N–O bond. J. Phys. Chem. A 125, 5014–5021 (2021). Article CAS PubMed Google Scholar Stateman, L. M., Dare, R. M., Paneque, A. N. & Nagib, D. A. Aza-heterocycles via copper-catalyzed, remote C–H desaturation of amines. Chem 8, ...
The study and application of transition metal hydrides (TMHs) has been an active area of chemical research since the early 1960s1, for energy storage, through the reduction of protons to generate hydrogen2,3, and for organic synthesis, for the functionalization of unsaturated C–C, C–O and ...
The gas-phase reaction of activation of C–C double bond of C2H4 by VOt2 has been investigated using density functional theory (DFT) at the UB3LYP/6-311G(2d,p) level. The calculation results show that the reaction experiences rearranged process. On the basis of Hammond postulate, this i...
conjugated double bond 共轭双键conjugated lipid 结合脂质conjugated polyene 共轭聚烯conjugated polymers 共轭聚合物conjugated protein 结合蛋白质conjugated system 共轭系conjugation 共轭conjugation effect 共轭效应consecutive reaction 连锁反应conservative system 保守系consistency 稠度consistometer 稠度计consolute temperature ...
Rotational Energy Barrier of the Polarized Carbon–Carbon Double Bond in Quinophthalone A dynamic NMR effect is observed in the 13 C NMR spectra of anhydrous quinophthalone (quinoline yellow) and its monohydrate in the vicinity of 47°C and 0... I Yavari,M Adib,HR Bijanzadeh,... - 《Mo...
Polar molecules tend to interact favourably with other polar molecules as dipole moments can align, resulting in a system with lowered energy. Similarly, non-polar molecules interact well with other non-polar molecules through Van der Walls interactions and explains the observed solubi...
The inhibited internal rotation about the C-N partially double bond in N-acyl-1,2,3,4-tetrahydroquinolines was investigated by NMR spectroscopy. It is demonstrated that these compounds exist in the form of Z and E conformers, and their ratios are determined under the conditions of stereochemica...