Chemistry Faculty Publications

Document Type

Article

Abstract

The excited-state behavior of 9-hydroxy-10-methyl-9-phenyl-9,10-dihydroacridine and its derivative, 9-methoxy-10-methyl-9-phenyl-9,10-dihydroacridine (AcrOR, R = H, Me), was studied via femtosecond and nanosecond UV-vis transient absorption spectroscopy. The solvent effects on C-O bond cleavage were clearly identified: a fast heterolytic cleavage (tau = 108 ps) was observed in protic solvents, while intersystem crossing was observed in aprotic solvents. Fast heterolysis generates 10methyl-9-phenylacridinium (Acr(+)) and -OH, which have a long recombination lifetime (no signal decay was observed within 100 mu s). AcrOH exhibits the characteristic behavior needed for its utilization as a chromophore in the pOH jump experiment.

Publication Date

7-2012

Publication Title

Journal Of The American Chemical Society

Volume

134

Issue

28

Start Page No.

11301

End Page No.

11303

DOI

10.1021/ja3031888

Included in

Chemistry Commons

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