Spiral Assembly of the 1D Chain Sheet of Fe(NCBH3)2(bpa)2·(biphenyl) (bpa = 1,2-bis(4-pyridyl)ethane) and its Stepwise Spin-Crossover Phenomenon

Polymers

Satoru Nakashima²  Takaki Morita¹  Katsuya Inoue¹ 

[1] Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan;;Natural Science Center for Basic Research and Development, Hiroshima University, 1-4-2 Kagamiyama, Higashi-Hiroshima 739-8526, Japan

关键词: assembled complexes;    spiral assembly;    anti-gauche conformer;    spin crossover;   

DOI  :  10.3390/polym4010880

来源: mdpi

【 摘 要 】

The assembled complex, Fe(NCBH₃)₂(bpa)₂, enclathrating biphenyl has been synthesized, the skeleton of which is a 1D chain. Several 1D chains gather together to form 1D chain sheet. The 1D chain sheet is stacked spirally to form novel spiral assembly. The average Fe-N distances were 2.020(2), 2.083(2), and 2.191(2) Å at 100, 175, and 298 K, respectively, reflecting spin-state change of the iron ion. The assembly showed a stepwise spin-crossover phenomenon.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.