Charge-transfer-induced

Klinke, C. Chen, J. Afzali, A. Avouris, P. 2005. Charge transfer induced polarity switching in carbon nanotube transistors. Nano Lett. 5 555-558. 

Sitte, H. H., Huck, S Reither, H., Boehm, S., Singer, E. A., and PiU, C. (1998) Carrier-mediated release, transport rates, and charge transfer induced by amphetamine, tyramine, and dopamine in mammalian cells transfected with the human dopamine transporter../. Neu-rochem. 71,1289-1297. 

Dioxetanes bearing an electron donating group, e.g., 31, show charge transfer induced decomposition which produces light efficiently <99T4287>. 

The charge transfer induced polarizability of a surface atom is closely related to the electronic density of states of the atom as can be seen by... 

Charge-Transfer-Induced Circular Dichroism (CTICD)... 

In this paper we do not attempt to exhaustively review the phenomenology of charge transfer induced dual fluorescence. Other reviews on this subject can be found elsewhere [3-5], Instead, we emphasize recent progress on the fundamental understanding of the dynamics of charge transfer, both from a theoretical and experimental standpoint. In particular, recent picosecond and femtosecond experiments receive a lot of attention. 

The body of evidence summarized within the aforementioned reviews clearly indicates that simple 1,2-dioxetanes decompose thermally through a twisted diradical-like transition state to afford predominantly a triplet-excited carbonyl with no direct emission of light (Scheme 1), while dioxetanes bearing an aromatic electron-donor moiety display intramolecular charge-transfer-induced decomposition with accompanying effective emission of light (Scheme 2). 

The basic molecular properties that give rise to high values of the hyperpolarizabihties, such as P and 7, are reasonably well understood in organic solids. For quadratic molecular effects, conjugation and intramolecular charge transfer are important. Cubic-nonlinearity-related effects are enhanced in one-dimensional conjugated structures, but no charge-transfer-induced asymmetry is required. 

Isobe H, Okamura M, Kuramitsu S, Yamaguchi K. Mechanistic insights in charge-transfer-induced luminescence of 1,2-dioxetanones with a substituent of low oxidation potential. J Am Chem Soc 2005 127 8667-79. 

High energy dioxetane molecules give an electronically excited carbonyl fragment by thermal decomposition or by intramolecular charge-transfer induced decomposition. Thus, dioxetane lb is presumed to decompose similarly into the corresponding excited... 

Matsumoto M, Watanabe N. Structural aspects of 1,2-dioxetanes active toward intramolecular charge-transfer-induced chemiluminescent decomposition. Bull Chem Soc Jpn 2005 78 1899-1920. 

Fig. 1. Charge-transfer-induced chemiluminescent decomposition of dioxetanes bearing an oxidonaphthalen-2-yl group...

CHARGE-TRANSFER-INDUCED LUMINESCENCE (CTIL) MECHANISMS OF CHEMI- AND BIOLUMINESCENCE REACTIONS... 

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