1. Key Laboratory
of Magnetic Molecules and Magnetic Information Materials of Ministry
of Education and School of Chemistry and Materials Science, Shanxi Normal University, Linfen 041004, China
2. Department of Materials Science and
Engineering, Royal Institute of Technology, Stockholm SE100 44, Sweden
3. Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
4. School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, United Kingdom