✦ LIBER ✦

Intramolecular photoinduced electron transfer in fixed distance triads consisting of free-base porphyrin, zinc porphyrin, and electron acceptor

✍ Scribed by Atsuhiro Osuka; Toshi Nagata; Kazuhiro Maruyama; Noboru Mataga; Tsuyoshi Asahi; Iwao Yamazaki; Yoshinobu Nishimura

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 616 KB
Volume: 185
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(91)80145-n

No coin nor oath required. For personal study only.

✦ Synopsis

Intramolecular photoinduced electron transfer reaction of a series of fixed distance triads consisting of free-base porphyrin, zinc porphyrin, and quinone or pyromellitimide have been investigated by means of steady-state fluorescence spectroscopy, picosecond time-resolved fluorescence spectroscopy, and picosecond time-resolved transient absorption spectroscopy. The singlet excited state of the distal free-base porphyrin was found to be quenched by the attached electron acceptor at 298 Kin THF and at 77 K in EPA. indicating long distance electron transfer from the free-base porphyrin to the acceptor. However, long-lived charge separated states were not formed in these model compounds

📜 SIMILAR VOLUMES

Long-lived charge separated states from

Long-lived charge separated states from distance fixed triads consisting of zinc porphyrin, free-base porphyrin, and pyromellitimide

✍ Atsuhiro Osuka; Toshi Nagata; Fumikazu Kobayashi; Run Ping Zhang; Kazuhiro Maruy 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 614 KB

Photwxcitation of distance restricted triads consisting of zinc porphyrin (ZnP), free-base porphyrin (HP), and pyromellitimide (Im) at 532 urn in THF at room temperature led to long-lived charge separated states (ZnP)+-H2P-(Im)-with a lifetime of 0.16-80 ps via electron transfer from the ' (H2P)\* t

Unusual Photoinduced Electron Transfer f

Unusual Photoinduced Electron Transfer from a Zinc Porphyrin to a Tetrapyridyl Free-Base Porphyrin in a Noncovalent Multiporphyrin Array

✍ Barbara Ventura; Lucia Flamigni; Maryline Beyler; Valérie Heitz; Jean-Pierre Sau 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 407 KB 👁 2 views

Effects of Metal Ions on Photoinduced El

Effects of Metal Ions on Photoinduced Electron Transfer in Zinc Porphyrin–Naphthalenediimide Linked Systems

✍ Ken Okamoto; Yukie Mori; Hiroko Yamada; Hiroshi Imahori; Shunichi Fukuzumi 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 247 KB 👁 2 views

Picosecond dynamics of intramolecular si

Picosecond dynamics of intramolecular singlet excitation energy transfer and photoinduced electron transfer in covalently-linked carotenoid—porphyrin and carotenoid—porphyrin—pyromellitimide molecules

✍ Atsuhiro Osuka; Hiroko Yamada; Kazuhiro Maruyama; Noboru Mataga; Tsuyoshi Asahi; 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 541 KB

Charge Separation in a Molecular Triad C

Charge Separation in a Molecular Triad Consisting of an Iridium(III) – bis-terpy Central Core and Porphyrins as Terminal Electron Donor and Acceptor Groups

✍ Isabelle M. Dixon; Jean-Paul Collin; Jean-Pierre Sauvage; Francesco Barigelletti 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 108 KB 👁 2 views

Charge Separation in a Molecular Triad C

Charge Separation in a Molecular Triad Consisting of an Iridium(III) – bis-terpy Central Core and Porphyrins as Terminal Electron Donor and Acceptor Groups

✍ Isabelle M. Dixon; Jean-Paul Collin; Jean-Pierre Sauvage; Francesco Barigelletti 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 115 KB 👁 2 views