论文标题
带有自旋开关的可升华复合物：化学设计，作为薄膜的加工以及基于石墨烯的设备的集成
Sublimable complexes with spin switching: Chemical design, processing as thin films and integration in graphene-based devices
论文作者
论文摘要
在不同类型的可开关分子化合物中，可升华的Fe（II）SCO分子为开发智能设备提供了响应外部刺激的智能设备。在这里，我们报告属于{Fe [H2B（PZ）2] 2（l）2（l）2（l）2（l）的三个新中性Fe（II）SCO分子的合成，晶体结构和磁性特性，具有双齿-alpha-diimine Ligands L = 3-（pyridin-2-基）（pyridin-2-基） - 5,5,6,6-四氢-4H，4H-2,2-BI（1,3-噻嗪）（BTZ）和4,4,4,5,5-二氢-2,2-二唑（分别分别）（BT）（BT）（1、2和3）（分别为1、2和3），以及两种溶解形式的1和3。合作和有效性。此外，在HV条件下，1和2可升华，可提供200 nm厚（TF1和TF2）的均匀薄膜，该薄膜保留了原始分子的化学完整性，无论沉积表面如何。薄膜的SCO行为的特征是XAS技术揭示了热诱导的自旋转变的部分保留，但失去了合作性。最后，使用这些薄膜制作了基于CVD-石膏的SCO/2D水平杂交设备。作为利用{fe [h2b（pz）2] 2] 2（l）}家族分子的第一个类型的类型，具有L = tzpy和BTZ，这些设备允许通过CVD-格丁烯的电气特性成功地检测了热CO转变。
Among the different types of switchable molecular compounds, sublimable Fe(II) SCO molecules provide a suitable platform to develop smart devices that respond to external stimuli. Here we report the synthesis, crystallographic structure and magnetic properties of three new neutral Fe(II) SCO molecules belonging to the {Fe[H2B(pz)2]2(L)} family with bidentate-alpha-diimine ligands L = 3-(pyridin-2-yl)-[1,2,3]triazolo[1,5-a]pyridine (tzpy), 5,5,6,6-tetrahydro-4H,4H-2,2-bi(1,3-thiazine) (btz) and 4,4,5,5-tetrahydro-2,2-bithiazole (bt) (1, 2 and 3, respectively), as well as two solvated forms of 1 and 3. All three desolvated compounds present thermal- and light-induced SCO transitions with different degrees of cooperativity and effectiveness. Furthermore, 1 and 2 are demonstrated to be sublimable under HV conditions affording homogeneous thin films 200 nm thick (TF1 and TF2) that retain the chemical integrity of the original molecules regardless the deposition surface. The SCO behaviour of the films is characterized by XAS technique revealing the partial retainment of both thermal- and light-induced spin transitions, yet losing the cooperativity. Finally, SCO/2D horizontal hybrid devices based on CVD-graphene are produced using these films. Being the first ones of this type utilizing molecules of {Fe[H2B(pz)2]2(L)} family, with L = tzpy and btz, the devices have allowed the successful detection of the thermal SCO transition through the electric properties of the CVD-graphene.
