Bakuru Vasudeva Rao, Samanta Debabrata, Maji Tapas Kumar, Kalidindi Suresh Babu
Materials Science Division, Poornaprajna Institute of Scientific Research, Devanahalli, Bangalore Rural-562164, India.
Chemistry and Physics of Materials Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore-560064, India.
Dalton Trans. 2020 Apr 28;49(16):5024-5028. doi: 10.1039/d0dt00472c.
Ammonia borane with both hydridic and protic hydrogens in its structure acted as an efficient transfer hydrogenation agent for selective transformation of alkynes into alkenes in non-protic solvents. Catalytic synergy between the μ3-OH groups of the UiO-66(Hf) MOF and Pd active sites in Pd/UiO-66(Hf) furnished an elusive >98% styrene selectivity and full phenylacetylene conversion at room temperature. Such performance is not achievable by a Pd + UiO-66(Hf) physical mixture or by a commercial Pd/C catalyst.
结构中同时含有氢负离子氢和亲质子氢的氨硼烷，在非质子溶剂中作为一种有效的转移氢化剂，用于将炔烃选择性转化为烯烃。UiO-66(Hf)金属有机框架（MOF）的μ3-OH基团与Pd/UiO-66(Hf)中的Pd活性位点之间的催化协同作用，在室温下实现了难以达到的>98%的苯乙烯选择性和苯乙炔的完全转化。Pd与UiO-66(Hf)的物理混合物或商业Pd/C催化剂都无法实现这样的性能。
