2015
DOI: 10.1039/c5nr01675d
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Abstract: The distance dependence of sequential electron transfer has been studied in six, vertical, linear supramolecular triads, (TTF-Ph(n)-py → AlPor-Ph(m)-C60, n = 0, 1 and m = 1, 2, 3), constructed using tetrathiafulvalene (TTF), aluminum(III) porphyrin (AlPor) and fullerene (C60) entities. The C60 and TTF units are bound to the Al center on opposite faces of the porphyrin; the C60 through a covalent axial bond using a benzoate spacer, and the TTF through a coordination bond via an appended pyridine. Time-resolved … Show more

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Cited by 46 publications
(69 citation statements)
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“…Our recent DFT studies on TTF-Ph n -py→AlPor-Ph (n = 0,1), where the py appended TTF derivatives were bound to pristine AlPor-Ph through a coordination bond in the axial direction, revealed a significant delocalization of their molecular orbitals (HOMO and LUMO) onto the bridging unit. 42,45 As anticipated, the HOMO and LUMO are localized primarily on the TTF and AlPor units, respectively. However, in both cases some delocalization onto the Ph and/or Py bridge occurs.…”
Section: ■ Introductionmentioning
confidence: 91%
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“…Our recent DFT studies on TTF-Ph n -py→AlPor-Ph (n = 0,1), where the py appended TTF derivatives were bound to pristine AlPor-Ph through a coordination bond in the axial direction, revealed a significant delocalization of their molecular orbitals (HOMO and LUMO) onto the bridging unit. 42,45 As anticipated, the HOMO and LUMO are localized primarily on the TTF and AlPor units, respectively. However, in both cases some delocalization onto the Ph and/or Py bridge occurs.…”
Section: ■ Introductionmentioning
confidence: 91%
“…The decay rate of this peak lasted over 3 ns (see Figure S18b), the monitoring window of our instrument setup, suggesting that this could be due to the singlet−singlet excited state of AlPor. 42 Similarly, the instantly formed S 1 and S 2 states of H 2 Por-Ph upon excitation revealed depleted peaks at 509, 533, and 585 nm corresponding to their Q-band absorption, and at 647 and 720 nm corresponding to stimulated emission of free-base porphyrin ( Figure S19a). Positive peaks at 440, 530, 558, 616, and 680 nm were observed.…”
Section: ■ Introductionmentioning
confidence: 95%
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“…22. The distance-dependent sequential photoinduced electron transfer processes within the system were then systematically investigated [112] Various spectroscopic techniques were used to establish the structural integrity of the complexes and kinetics of photoinduced electron transfer processes. The absorption spectrum of AlPor was recorded in DCB which revealed a Soret band at 415 nm and weak Q bands at 550…”
Section: Models To Probe Excitation Energy Transfermentioning
confidence: 99%