With visible light(λ=450 nm) irradiation of a catalytic amount of platinum(Ⅱ) terpyridyl complex, 1,3,5-triaryl-2-pyrazolines can be smoothly converted to their corresponding pyrazoles and hydrogen in quantitative y...With visible light(λ=450 nm) irradiation of a catalytic amount of platinum(Ⅱ) terpyridyl complex, 1,3,5-triaryl-2-pyrazolines can be smoothly converted to their corresponding pyrazoles and hydrogen in quantitative yields with no use of any oxidant at room temperature.展开更多
本文将一组金属有机电解质应用于双相氧化还原液流电池。该电解质由铁和联吡啶衍生物配体组成络合物,带有+2或+3价离子电荷,只溶于乙腈和3-戊酮等有机溶剂,但极不溶于水。特别是铁(II)-4,4’-二叔丁基-2,2’-联吡啶络合物的3-戊酮溶液在...本文将一组金属有机电解质应用于双相氧化还原液流电池。该电解质由铁和联吡啶衍生物配体组成络合物,带有+2或+3价离子电荷,只溶于乙腈和3-戊酮等有机溶剂,但极不溶于水。特别是铁(II)-4,4’-二叔丁基-2,2’-联吡啶络合物的3-戊酮溶液在1.2V vs. SHE的电位下循环时表现出优异的电化学可逆性、动力学和稳定性。这是首次报道这些电解质有机溶液在氧化还原液流电池中的应用。展开更多
In order to study the effects of the substituted groups on the properties of the complexes, a series of rhenium(Ⅰ) 2,2′-bipyridyl complexes [fac-(4,4′-di-COOEt-bpy)Re(CO) 3(X—pyridine)PF 6], where bpy is 2,2′-bip...In order to study the effects of the substituted groups on the properties of the complexes, a series of rhenium(Ⅰ) 2,2′-bipyridyl complexes [fac-(4,4′-di-COOEt-bpy)Re(CO) 3(X—pyridine)PF 6], where bpy is 2,2′-bipyridine and X is 4-methyl, 3-hydroxy, 4-hydroxy, 4-amino, or H, were synthesized with a yield more than 90%, and characterized by 1H NMR, 13C NMR, 2D-NMR( 1H- 1H COSY, HMBC, HSQC), ESI-MS and HRMS. The δ H values on the X—pyridine ring were shifted to up-field in 1H NMR and the MLCT absorbance maxima were red-shifted as the X groups became more electron-donating from H to 4-methyl, 4-hydroxy or 4-amino. The ESI-MS and HRMS showed the mono-charged peaks and their isotopic peaks of the complexes. The absorption maximum of 1d(X= 4-amino) is 20 nm longer than that of 1e(X=H). It might be used to broaden the absorption range of solar cells.展开更多
基金supported by the National Basic Research Program of China(2013CB8345052013CB834804)+3 种基金the National Natural Science Foundation of China(213904049142730321402217)the Key Research Programme of the Chinese Academy of Sciences(KGZD-EW-T05)
文摘With visible light(λ=450 nm) irradiation of a catalytic amount of platinum(Ⅱ) terpyridyl complex, 1,3,5-triaryl-2-pyrazolines can be smoothly converted to their corresponding pyrazoles and hydrogen in quantitative yields with no use of any oxidant at room temperature.
文摘本文将一组金属有机电解质应用于双相氧化还原液流电池。该电解质由铁和联吡啶衍生物配体组成络合物,带有+2或+3价离子电荷,只溶于乙腈和3-戊酮等有机溶剂,但极不溶于水。特别是铁(II)-4,4’-二叔丁基-2,2’-联吡啶络合物的3-戊酮溶液在1.2V vs. SHE的电位下循环时表现出优异的电化学可逆性、动力学和稳定性。这是首次报道这些电解质有机溶液在氧化还原液流电池中的应用。
文摘In order to study the effects of the substituted groups on the properties of the complexes, a series of rhenium(Ⅰ) 2,2′-bipyridyl complexes [fac-(4,4′-di-COOEt-bpy)Re(CO) 3(X—pyridine)PF 6], where bpy is 2,2′-bipyridine and X is 4-methyl, 3-hydroxy, 4-hydroxy, 4-amino, or H, were synthesized with a yield more than 90%, and characterized by 1H NMR, 13C NMR, 2D-NMR( 1H- 1H COSY, HMBC, HSQC), ESI-MS and HRMS. The δ H values on the X—pyridine ring were shifted to up-field in 1H NMR and the MLCT absorbance maxima were red-shifted as the X groups became more electron-donating from H to 4-methyl, 4-hydroxy or 4-amino. The ESI-MS and HRMS showed the mono-charged peaks and their isotopic peaks of the complexes. The absorption maximum of 1d(X= 4-amino) is 20 nm longer than that of 1e(X=H). It might be used to broaden the absorption range of solar cells.
