A Dibenzotetrathiafulvalene-Bridged Bis(alkenylruthenium) Complex and Its One- and Two-Electron-Oxidized Forms
作者:Franciska S. Gogesch、Lukas S. Laininger、Nick Sokov、Stefan M. Schupp、Laura Senft、Hipassia M. Moura、Michael Linseis、Lukas Schmidt-Mende、Ivana Ivanović-Burmazović、Miriam M. Unterlass、Rainer F. Winter
DOI:10.1021/acs.inorgchem.3c03184
日期:2023.11.20
of the new bis(alkenylruthenium) complex DBTTF-(ViRu)2 with a longitudinally extended, π-conjugated dibenzotetrathiafulvalene (DBTTF) bridge, characterized by multinuclear NMR, IR, and UV/vis spectroscopy, mass spectrometry, and single-crystal X-ray diffraction. Cyclic and square-wave voltammetry revealed that DBTTF-(ViRu)2 undergoes four consecutive oxidations. IR, UV/vis/near-IR, and electron paramagnetic
我们报告了新型双(烯基钌)络合物DBTTF-(ViRu) 2的合成,该络合物具有纵向延伸的 π-共轭二苯并四硫富瓦烯 (DBTTF) 桥,通过多核 NMR、IR 和 UV/vis 光谱、质谱和单晶X射线衍射。循环伏安法和方波伏安法显示DBTTF-(ViRu) 2经历了四次连续氧化。红外、紫外/可见/近红外和电子顺磁共振光谱表明,第一次氧化涉及氧化还原非无害的 DBTTF 桥,而第二次氧化偏向外围苯乙烯基钌实体之一,从而产生电子耦合的混合价状态(Ru}-CH=CH) •+ -DBTTF •+ -(CH=CH-Ru})[Ru}=Ru(CO)Cl(P i Pr 3 ) 2 ]。后者显然与 (Ru}-CH=CH) •+ -DBTTF-(CH=CH-Ru}) •+和 (Ru}-CH=CH)-DBTTF 2+ -(CH =CH-Ru}) 形式,计算值在 19 kJ/mol 以内。事实证明