TY - JOUR
T1 - nπ-ct-π* Transitions
T2 - nπ* Transitions of the second kind
AU - Kosower, Edward M.
AU - de Souza, Jaime R.
N1 - Funding Information:
J.R.deS. thanks the Helmuth Heineman Foundation for fellowship support.
PY - 2006/5/9
Y1 - 2006/5/9
N2 - Two important classes of molecules, maleimides and syn-bimanes [syn-bicyclo[3.3.0]octadienediones], are shown to exhibit charge-transfer absorptions and emissions, mainly on the basis of solvent effects on emissions. The electronic excitation originates mainly in a "non-bonding" p-orbital substantially localized on N, and oriented parallel to the π-system, hence nπ. The label, nπ-ct→π*, is proposed for these transitions. For the first time, two nπ-ct→π* transitions for a molecule containing a pair of adjacent nitrogens adjacent to a π-acceptor system are reported.
AB - Two important classes of molecules, maleimides and syn-bimanes [syn-bicyclo[3.3.0]octadienediones], are shown to exhibit charge-transfer absorptions and emissions, mainly on the basis of solvent effects on emissions. The electronic excitation originates mainly in a "non-bonding" p-orbital substantially localized on N, and oriented parallel to the π-system, hence nπ. The label, nπ-ct→π*, is proposed for these transitions. For the first time, two nπ-ct→π* transitions for a molecule containing a pair of adjacent nitrogens adjacent to a π-acceptor system are reported.
KW - Bimanes [syn-bicyclo[3.3.0]octadienediones]
KW - Charge-transfer absorptions
KW - Charge-transfer emissions
KW - Maleimides
KW - Solvent effects
KW - Two n-ct→π transitions
KW - n-ct→π transitions
UR - http://www.scopus.com/inward/record.url?scp=33646250181&partnerID=8YFLogxK
U2 - 10.1016/j.chemphys.2005.08.067
DO - 10.1016/j.chemphys.2005.08.067
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AN - SCOPUS:33646250181
SN - 0301-0104
VL - 324
SP - 3
EP - 7
JO - Chemical Physics
JF - Chemical Physics
IS - 1 SPEC. ISS.
ER -