1. Institute of Organic Chemistry & College of Chemical and Materials Science & Key Laboratory of Magnetic Molecules and Magnetic Information Materials, Ministry of Education, Shanxi Normal University, Gongyuan Street 1, Linfen, Shanxi Province, 041004, People’s Republic of China
2. School of Chemistry and Chemical Engineering, Central South University, Lushannan Road 932, Changsha, Hunan Province 410083, People’s Republic of China
3. Institut für Anorganische
Chemie, Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany