TY - JOUR
T1 - The effect of delocalization on the exchange energy in meta- and para-linked Pt-containing carbazole polymers and monomers
AU - Zhang, Ning
AU - Hayer, Anna
AU - Al-Suti, Mohammed K.
AU - Al-Belushi, Rayya A.
AU - Khan, Muhammad S.
AU - Köhler, Anna
PY - 2006
Y1 - 2006
N2 - A series of novel platinum-containing carbazole monomers and polymers was synthesized and fully characterized by UV-VIS absorption, luminescence, and photoinduced absorption studies. In these compounds, a carbazole unit is incorporated into the main chain via either a. para- or a meta-linkage. We discuss the effects of linkage and polymerization on the energy levels of S 1, T11, and Tn. The S1-T1 splitting observed for the meta-linked monomer (0.4 eV) is only half of that in the para-linked monomer (0.8 eV). Upon polymerization, the exchange energy in the para-linked compound reduces, yet still remains larger than in the meta-linked polymer. We attribute the difference in exchange energy to the difference in wave function overlap between electron and hole in these
AB - A series of novel platinum-containing carbazole monomers and polymers was synthesized and fully characterized by UV-VIS absorption, luminescence, and photoinduced absorption studies. In these compounds, a carbazole unit is incorporated into the main chain via either a. para- or a meta-linkage. We discuss the effects of linkage and polymerization on the energy levels of S 1, T11, and Tn. The S1-T1 splitting observed for the meta-linked monomer (0.4 eV) is only half of that in the para-linked monomer (0.8 eV). Upon polymerization, the exchange energy in the para-linked compound reduces, yet still remains larger than in the meta-linked polymer. We attribute the difference in exchange energy to the difference in wave function overlap between electron and hole in these
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U2 - 10.1063/1.2200351
DO - 10.1063/1.2200351
M3 - Article
AN - SCOPUS:33745596656
SN - 0021-9606
VL - 124
JO - Journal of Chemical Physics
JF - Journal of Chemical Physics
IS - 24
M1 - 244701
ER -