Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan and Department of Computer Science and Engineering, Yuan Ze University, Taoyuan 320, Taiwan.|Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan and Department of Computer Science and Engineering, Yuan Ze University, Taoyuan 320, Taiwan.|Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan and Department of Computer Science and Engineering, Yuan Ze University, Taoyuan 320, Taiwan.|Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan and Department of Computer Science and Engineering, Yuan Ze University, Taoyuan 320, Taiwan.