1. Chemistry‐Institute of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand, Fax: +64‐6‐3505602
2. Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
3. MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Chemistry, University of Otago, Dunedin 9054, New Zealand, Fax: +64‐3‐4797906