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- W4253092358 abstract "A linear relation between the νCO or νCN frequencies and aor, the atomic orbital coefficient in the non-bonding molecular orbital of the parent odd alternant radical, has been observed in a series of aromatic esters and nitriles. The equations of the straight lines are νCO = (1693 + 36.9 aor) cm−1 νCN = (2190 + 55.6 aor) cm−1 Steric strain due to peri-hydrogens seems to have no influence on the frequencies. The intensities of the νCO and νCN vibrations depend on: (a) the steric strain due to peri-hydrogens (b) the number of rings in the aromatic nucleus (c) the conjugating power of the position bearing the substituent. It is also suggested that the conjugation between the benzene and naphthalene nuclei in fluoranthene is very reduced, in the electronic fundamental state." @default.
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- W4253092358 date "1962-01-01" @default.
- W4253092358 modified "2023-09-26" @default.
- W4253092358 title "Propriétés physico-chimiques de dérivés à caractère aromatique—IIIPosition et intensitié des vibrations de valence νC=O et νC-N dans une série d'esters et de nitriles polycycliques aromatiques" @default.
- W4253092358 doi "https://doi.org/10.1016/s0371-1951(62)80181-7" @default.
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