sup 17/O shieldings in nitrobenzenes have been found to be sensitive to the electronic character of para substituents precisely in the manner anticipated from consideration of valence bond structure. Furthermore, the large sensitivity to electron density changes indicates /sup 17/O to be an ...
And can you explain why in compounds the electron rich areas corresponds to the electron rich areas in the resonance structures of the compound ? like meta position for Nitrobenzene or ortho/para for halobenzene. Logged clarkstill Chemist
These parameters have to be scaled by the structure coefficients (weights) of the contributing structures. 展开 关键词: Catalytic ozonation p-Chloronitrobenzene Pumice Hydroxyl radical DOI: 10.1021/jp211105t 被引量: 5 年份: 2012 收藏 引用 批量引用 报错 分享 ...
Draw the resonance structures for the anionic intermediate that would be produced by reaction of methoxide ion at the 3 position of 3,4- dichloronitrobenzene. Draw the resonance structures for the an Draw the Lewis stru...
Molecular structures of PCl4F, PCl3F2, PCl2F3, and PF5 are derived from vapor-state infrared spectra (2000-250 cm1) and low-temperature liquid-state Raman ... RR Holmes,RP Carter,GE Peterson - 《Inorganic Chemistry》 被引量: 78发表: 1964年 Pentacoordinated Molecules. VI. The Electric-Dipo...
The substrates include: 1-x-2,4-dinitrobenzenes; 1-x-2,6-dinitrobenzenes; 1-x-2,4,6-trinitrobenzenes; 1-x-2,4-dinitronaphthalenes; and 9-x-10-nitroanthracenes.doi:10.1016/S0040-4020(01)83304-4R. FosterChemistry Dept., Queen's College, University of St. Andrews, Dundee, ...
ofOF共振Raman拉曼光谱UsingandusingTNTRDX 系统标签: rdxramantntspectraresonance拉曼光谱 ResonanceRamanSpectraofTNTandRDXUsingVibronicTheory, Excited-StateGradient,andComplexPolarizabilityApproximations W.A.Al-Saidi,* ,† SanfordA.Asher, ‡ andPatrickNorman § † DepartmentofChemicalandPetroleumEngineering,...
ChemInform Abstract: NITROBENZENE VALENCE BOND STRUCTURES: EVIDENCE IN SUPPORT OF THROUGH-RESONANCE FROM OXYGEN-17 SHIELDINGSstructure (organic substances)doi:10.1002/chin.198307080R.R.FRASERA.J.RAGAUSKASJ.B.STOTHERSChemischer Informationsdienst
GraphicalStoichiometry and stability of the Li+ complexes with12-Crown-4 and Benzo-12-crown-4 were investigated by 7Li NMR in nitromethane-acetonitrile mixtures. The optimized structures of the free crowns and their 1:1 and 2:1 complexes with Li+ ion were predicted by ab initio theoretical ...
Possible structures of the ionic species to explain the results of epr and optical studies are suggested. Paramagnetic ion clusters were also found in the solutions of other radical anions such as quinoxaline, terephthalonitrile, and p-chloronitrobenzene.doi:10.1002/chin.197443329...