Luan Jie, Zhou Jian, Liu Zhan, Zhu Bowen, Wang Huisi, Bao Xin, Liu Wei, Tong Ming-Liang, Peng Guo, Peng Haonan, Salmon Lionel, Bousseksou Azzedine
‡Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, 510275 Guangzhou, P. R. China.
∥LCC, CNRS, Université de Toulouse (UPS, INP), 205 route de Narbonne, 31077 Toulouse, France.
Inorg Chem. 2015 Jun 1;54(11):5145-7. doi: 10.1021/acs.inorgchem.5b00629. Epub 2015 May 8.
A mononuclear iron(II) complex has been isolated in two polymorphs. Polymorph 1b remains high-spin over all temperatures, whereas polymorph 1a undergoes a cooperative two-step spin crossover accompanied by symmetry breaking, showing an ordered 2:1 high-spin-low-spin intermediate phase.