Baalbaki Hassan A, Shu Julia, Nyamayaro Kudzanai, Jung Hyuk-Joon, Mehrkhodavandi Parisa
University of British Columbia, Department of Chemistry, 2036 Main Mall, Vancouver, BC, Canada.
Chem Commun (Camb). 2022 May 24;58(42):6192-6195. doi: 10.1039/d2cc01498j.
Neutral zinc complexes supported by H[PNNO], a diaminophenolate ligand bearing a pendant phosphine group, were synthesized and characterized. The phosphine arm adopts two different configurations in solution and prevents aggregation. The monomeric zinc hydride complex is stable at elevated temperatures up to 125 °C and reacts readily with CO to afford a zinc formate complex. The zinc hydride is active for CO hydrosilylation at atmospheric CO pressure and is selective for CO reduction to the silyl-formate product.
合成并表征了由H[PNNO]（一种带有侧膦基团的二氨基酚盐配体）支撑的中性锌配合物。膦臂在溶液中采用两种不同的构型，可防止聚集。单体氢化锌配合物在高达125°C的高温下稳定，并能与CO迅速反应生成甲酸锌配合物。该氢化锌在大气CO压力下对CO硅氢化反应具有活性，且对CO还原为甲硅烷基甲酸酯产物具有选择性。
