A Sequential Method to Prepare Polymorphs and Solvatomorphs of [Fe(1,3-bpp)<sub>2</sub>
](ClO<sub>4</sub>
)<sub>2</sub>
⋅<i>n</i>
H<sub>2</sub>
O (<i>n</i>
=0, 1, 2) with Varying Spin-Crossover Behaviour
作者:Carlos Bartual-Murgui、Carlota Codina、Olivier Roubeau、Guillem Aromí
DOI:10.1002/chem.201601843
日期:2016.8.26
polymorphs of the spin crossover (SCO) compound [Fe(1,3‐bpp)2](ClO4)2 (1 and 2; 1,3‐bpp=2‐(pyrazol‐1‐yl)‐6‐(pyrazol‐3‐yl)pyridine) were prepared using a novel, stepwise procedure. Crystals of 1 deposit from dry solvents, while 2 is obtained from a solid‐state procedure, by sequentially removing lattice H2O molecules from the solvatomorph [Fe(1,3‐bpp)2](ClO4)2⋅2 H2O (2⋅2 H2O), using single‐crystal‐to‐single‐crystal
自旋交联(SCO)化合物[Fe(1,3-bpp)2 ](ClO 4)2(1和2 ; 1,3-bpp = 2-(吡唑-1-基)-6-(吡唑-3-基)吡啶)是采用新颖的分步方法制备的。的晶体1个从干燥溶剂存款,而2是由固态方法获得,通过顺序地去除晶格ħ 2 O,使其脱离solvatomorph分子的[Fe(1,3- BPP)2 ](CLO 4)2 ⋅2ħ 2 O(2 ⋅2ħ 2 O),使用单晶到单晶(SCSC)转换。水合物2通过与1相同的反应获得⋅2H 2 O ,现在添加2.5%的水。化合物2和2 ⋅2ħ 2的O在大气中不稳定,分别吸收或水失去一当量,两者收率稳定solvatomorph的[Fe(1,3- BPP)2 ](CLO 4)2 ⋅H 2 O(2 ⋅H 2 O),也下列SCSC过程。这四种衍生物已通过单晶X射线衍射(SCXRD)进行了表征。此外,通过粉末X射线衍射(PXRD)证实了各种