1. Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Road, Shoufeng, Hualien, Taiwan 974301, R.O.C.
2. Department of Chemistry, Fu Jen Catholic University 510 Zhongzheng Road, Xinzhung District, New Taipei City, Taiwan 24205, R.O.C.
3. Institute of Chemistry, Academica Sinica, Taipei, Taiwan 11528, R.O.C.
4. Univ Rennes, CNRS, ISCR–UMR 6226, F-35000 Rennes, France