Issue 13, 2013

Design and synthesis of donor–acceptor pyrazabole derivatives for multiphoton absorption

Abstract

A series of ferrocenyl substituted pyrazaboles were prepared, which have an electron-withdrawing pyrazabole moiety as the central core, with a D–π–A–π–D structural motif (D = donor, A = acceptor) and containing a variety of π bridges. A crystallographic study reveals that the pyrazabole central core was observed in planar geometry. Strong two-photon absorption in the visible region and three-photon absorption in the near IR region were observed in the ferrocenyl substituted pyrazaboles. It was observed that the 2PA absorption cross-section increases with the conjugation length.

Graphical abstract: Design and synthesis of donor–acceptor pyrazabole derivatives for multiphoton absorption

Supplementary files

Article information

Article type
Communication
Submitted
20 Nov 2012
Accepted
23 Jan 2013
First published
25 Jan 2013

Dalton Trans., 2013,42, 4340-4342

Design and synthesis of donor–acceptor pyrazabole derivatives for multiphoton absorption

T. Jadhav, R. Maragani, R. Misra, V. Sreeramulu, D. N. Rao and S. M. Mobin, Dalton Trans., 2013, 42, 4340 DOI: 10.1039/C3DT33065F

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