Li-Wen Chen, Hao-Zhe Zhang, Sheng-Ze Zhao, Hua-Wei Zhou, Yong-Hua Li, Chao Tang, Shi Wang
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引用次数: 0
摘要
我们提出共结晶作为一种调整单核Mn（III）希夫碱配合物自旋交叉（SCO）性质的方法。配合物[Mn(5- f -sal- n -1,5,8,12)]ClO4⋅0.5咔唑（共晶1a）和[Mn(5- f -sal- n -1,5,8,12)]PF6⋅0.5咔唑（共晶2b）是由它们的母体配合物[Mn(5- f -sal- n -1,5,8,12)]Y共结晶合成的，Y=ClO4−(1)；Y=PF6−(2))，在2 ~ 300 K范围内均表现出HS电子构型。母体配合物1在T1/2=100 K时表现出接近完全的SCO，配合物2保持高自旋（HS）状态。咔唑作为第三组分的引入对SCO配合物的阳离子-阴离子排列和协同效应有很大的影响。
Co-crystallization as a Strategy for Tuning Spin Crossover Properties of Mononuclear Mn(III) Schiff-base Complexes
We present co-crystallization as an approach to tuning spin crossover (SCO) properties of mononuclear Mn(III) Schiff-base complexes. Complexes [Mn(5-F-sal-N-1,5,8,12)]ClO4 ⋅ 0.5carbazole (cocrystal 1 a) and [Mn(5-F-sal-N-1,5,8,12)]PF6 ⋅ 0.5carbazole (cocrystal 2 b) are synthesized by the co-crystallization of their parent complexes ( [Mn(5-F-sal-N-1,5,8,12)]Y, Y=ClO4− (1); Y=PF6− (2) ) with the carbazole and they both exhibit HS electronic configurations between 2 and 300 K. While, the parent complex 1 shows a nearly complete SCO with T1/2=100 K and complex 2 maintains a high-spin (HS) state. The introduction of carbazole as the third component has a great influence on cation-anion crystal packing and finally the cooperative effects of the SCO complexes.
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The European Journal of Inorganic Chemistry (2019 ISI Impact Factor: 2.529) publishes Full Papers, Communications, and Minireviews from the entire spectrum of inorganic, organometallic, bioinorganic, and solid-state chemistry. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies.
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