WebbThe application of magnetic indices NICS0 and NICS1 results in an overestimation of aromaticity of substituted molecules with respect to benzene. Modifications of these indices (NICS-z and NICS-anis) reproduce well the character of the substituents except for functional groups containing carbonyl bonds. Webb19 juni 2006 · The application of magnetic indices NICS0 and NICS1 results in an overestimation of aromaticity of substituted molecules with respect to benzene. Modifications of these indices (NICS-z and NICS-anis) reproduce well the character of the substituents except for functional groups containing carbonyl bonds.
Tian LU Head PhD Research profile
WebbThe present scale named E aroma quantifies aromaticity as the average stabilization of a conjugated bond in a cyclic/extended cyclic conjugated system as compared to a matching linear conjugated one. The E aroma values showed good agreement with the HOMA, NICS0, NICS1, MESP, and ASE indices of aromaticity. WebbThe corresponding NICS results are shown in Figure 1 and indicate a scatter of values within about 1.5-3.5 ppm versus the method used. Apparently, the NICS (1)zz index of … headache photosensitivity
An isodesmic reaction based approach to aromaticity of a large …
Webb23 apr. 2024 · Component CentOS field nics1: Select a network profile or enter one of the following custom properties: VirtualMachine.Network1.NetworkProfileName, … Webb19 juni 2006 · Unlike the classical NICS0 and NICS1 indices, the two other NICS-based indices do not demonstrate so obvious a failure in describing the degree of aromaticity … Webb22 maj 2010 · 1996年由Schleyer等人提出一个新的磁学判据NICS(NucleusIndependentChemicalShifts),可用于判断各种具有环状离域电子化合物 … headache physical assessment