Sohn H, Camacho-Bunquin J, Langeslay R R, Ignacio-de Leon P A, Niklas J, Poluektov O G, Liu C, Connell J G, Yang D, Kropf J, Kim H, Stair P C, Ferrandon M, Delferro M
Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, IL 60439, USA.
Chem Commun (Camb). 2017 Jun 29;53(53):7325-7328. doi: 10.1039/c7cc01876b.
A well-defined, isolated, single-site organovanadium(iii) catalyst on SiO [(SiO)V(Mes)(THF)] was synthesized via surface organometallic chemistry, and fully characterized using a combination of analytical and spectroscopic techniques (EA, ICP, H NMR, TGA-MS, EPR, XPS, DR-UV/Vis, UV-Raman, DRIFTS, XAS). The catalyst exhibits unprecedented reactivity in liquid- and gas-phase alkene/alkyne hydrogenation. Kinetic poisoning experiments revealed that 100% of the V sites are active for hydrogenation.
通过表面有机金属化学合成了一种定义明确、孤立的单中心二氧化硅负载有机钒(III)催化剂[(SiO)V(Mes)(THF)]，并使用多种分析和光谱技术（元素分析、电感耦合等离子体质谱、核磁共振氢谱、热重-质谱联用、电子顺磁共振、X射线光电子能谱、漫反射紫外/可见光谱、紫外拉曼光谱、漫反射红外傅里叶变换光谱、X射线吸收光谱）对其进行了全面表征。该催化剂在液相和气相烯烃/炔烃氢化反应中表现出前所未有的反应活性。动力学中毒实验表明，100%的钒位点对氢化反应具有活性。
