TY - JOUR
T1 - Effect of charge delocalization on radical ion pair electronic coupling
AU - Sinks, Louise E.
AU - Weiss, Emily A.
AU - Giaimo, Jovan M.
AU - Wasielewski, Michael R.
N1 - Funding Information:
This work was supported by the Division of Chemical Sciences, Office of Basic Energy Sciences, U.S. Department of Energy under Grant No. DE-FG02-99ER-14999. E.A.W. thanks the Link Foundation for support. The authors thank Dr. Michael J. Tauber for many helpful discussions.
PY - 2005/3/21
Y1 - 2005/3/21
N2 - Photoinduced charge separation and recombination were studied in a series of covalent donor-acceptor triads consisting of aniline, 1-aminonaphthalene, or 9-aminoanthracene donors (D) attached to a 4-aminonaphthalene-1,8-dicarboximide chromophore (ANI), which in turn is attached to a naphthalene-1,4:5,8- bis(dicarboximide) acceptor (NI) to give D-ANI-NI. The relationship between the molecular structure of D+. and the magnitude of the electronic coupling between the radicals within D+.-ANI-NI-. was probed by direct measurements of the spin-spin exchange interaction, 2J, using magnetic field effects on the yield of the neutral triplet state resulting from charge recombination and by density functional theory calculations.
AB - Photoinduced charge separation and recombination were studied in a series of covalent donor-acceptor triads consisting of aniline, 1-aminonaphthalene, or 9-aminoanthracene donors (D) attached to a 4-aminonaphthalene-1,8-dicarboximide chromophore (ANI), which in turn is attached to a naphthalene-1,4:5,8- bis(dicarboximide) acceptor (NI) to give D-ANI-NI. The relationship between the molecular structure of D+. and the magnitude of the electronic coupling between the radicals within D+.-ANI-NI-. was probed by direct measurements of the spin-spin exchange interaction, 2J, using magnetic field effects on the yield of the neutral triplet state resulting from charge recombination and by density functional theory calculations.
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U2 - 10.1016/j.cplett.2005.01.093
DO - 10.1016/j.cplett.2005.01.093
M3 - Article
AN - SCOPUS:14844291407
SN - 0009-2614
VL - 404
SP - 244
EP - 249
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 4-6
ER -