TY - JOUR
T1 - Photodissociation spectroscopy of phenol dimer ion. Lack of resonance interaction between the aromatic rings
AU - Ohashi, Kazuhiko
AU - Inokuchi, Yoshiya
AU - Nishi, Nobuyuki
PY - 1996/7/19
Y1 - 1996/7/19
N2 - Electronic spectra of a homo-molecular but inequivalent dimer ion, (C6H5OH)+2, are measured by photodissociation spectroscopy. A broad band appeared in the 340-440 nm region is characteristic of the C ← X transition of a phenol ion chromophore, suggesting that the dimer ion consists of a phenol ion and a neutral phenol. No strong band is observed in the 450-1400 nm region, whereas other aromatic dimer ions usually show charge resonance bands in near-infrared region. Owing to the geometrical constraint of an O-H ⋯ O hydrogen bond in (C6H5OH)+2, the two aromatic rings cannot be in a parallel configuration suitable for the resonance interaction.
AB - Electronic spectra of a homo-molecular but inequivalent dimer ion, (C6H5OH)+2, are measured by photodissociation spectroscopy. A broad band appeared in the 340-440 nm region is characteristic of the C ← X transition of a phenol ion chromophore, suggesting that the dimer ion consists of a phenol ion and a neutral phenol. No strong band is observed in the 450-1400 nm region, whereas other aromatic dimer ions usually show charge resonance bands in near-infrared region. Owing to the geometrical constraint of an O-H ⋯ O hydrogen bond in (C6H5OH)+2, the two aromatic rings cannot be in a parallel configuration suitable for the resonance interaction.
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U2 - 10.1016/0009-2614(96)00522-2
DO - 10.1016/0009-2614(96)00522-2
M3 - Article
AN - SCOPUS:0030593387
SN - 0009-2614
VL - 257
SP - 137
EP - 142
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1-2
ER -