Directly-linked intramolecular donor–acceptor compounds of ferrocene and tetracyanoanthraquinodimethane
作者:Glenn Kelly、Fatemeh Darviche、Neil Robertson、Thomas Gelbrich、Michael B. Hursthouse、Dafydd A. Thomas、Ian R. Butler
DOI:10.1016/j.inoche.2005.06.011
日期:2005.10
Two new intramolecular donor-acceptor species have been prepared linking ferrocene (Fc) directly to either the 1 (1) or 2 (2) positions of tetracyanoanthraquinodimethane (TCNAQ). Spectroscopic and electrochemical characterisation show significant differences between 1 and 2, revealing the importance of the position of attachment. The Fc part is a poorer donor and the TCNAQ part a poorer acceptor than the respective parent molecules and an intramolecular charge-transfer transition is observed at 604 nm (1) and 634 nm (2). The X-ray structure of 1 shows the TCNAQ component with the typical folded conformation with the ferrocene unit rotated by 38.0 degrees relative to the ring to which it is attached. (c) 2005 Elsevier B.V. All rights reserved.