受阻Lewis酸碱对(Frustrated Lewis Pairs,FLPs)是一类具有特殊反应活性的Lewis酸碱对。自发现以来,FLPs受到了广泛关注并在许多领域崭露头角。本文对FLPs在不对称氢化、高分子聚合、CO_2催化还原等应用领域取得的突破进行了介绍;同时...受阻Lewis酸碱对(Frustrated Lewis Pairs,FLPs)是一类具有特殊反应活性的Lewis酸碱对。自发现以来,FLPs受到了广泛关注并在许多领域崭露头角。本文对FLPs在不对称氢化、高分子聚合、CO_2催化还原等应用领域取得的突破进行了介绍;同时对过渡金属FLPs和FLPs配位的过渡金属催化体系进行了综述;最后对FLPs领域未来的发展前景进行了展望。展开更多
Three new isostructural binuclear transition metal complexes with azido ion and 1,2-bis（3-（pyridin-2-yl）-lH-pyrazol-1- yl）ethane （bppe）, formulated as [M2（N3）2（bppe）2]（C104）2 （M = Co, 1; Ni, 2; Cu, 3）, w...Three new isostructural binuclear transition metal complexes with azido ion and 1,2-bis（3-（pyridin-2-yl）-lH-pyrazol-1- yl）ethane （bppe）, formulated as [M2（N3）2（bppe）2]（C104）2 （M = Co, 1; Ni, 2; Cu, 3）, were successfully synthesized. They were structurally and magnetically characterized. In 1-3, the double azido ions link two adjacent octahedral metal centers together in the end-to-on mode （EO）, with the M-NEo-M angles of 99.41°, 100.24° and 99.80°, respectively. The co-ligand bppe acts as terminal ligand to saturate the remaining coordination sites. The magnetic properties of 1-3 have been investigated in the tem- perature range of 2-300 K. Fitting of the magnetic susceptibility data revealed the occurrence of the strong ferromagnetic in- teractions [J = 26.32 cm-1 （1）, J = 38.23 cm-1 （2） and J = 139.83 cm-1 （3）]. Density functional theory calculations have been performed on 1-3 to provide a magneto-structural correlation of the ferromagnetic behavior.展开更多
文摘受阻Lewis酸碱对(Frustrated Lewis Pairs,FLPs)是一类具有特殊反应活性的Lewis酸碱对。自发现以来,FLPs受到了广泛关注并在许多领域崭露头角。本文对FLPs在不对称氢化、高分子聚合、CO_2催化还原等应用领域取得的突破进行了介绍;同时对过渡金属FLPs和FLPs配位的过渡金属催化体系进行了综述;最后对FLPs领域未来的发展前景进行了展望。
基金supported by grants from the National Natural Science Foundation of China (90922032, 21171100, 21151001)Ministry of Education (IRT0927)
文摘Three new isostructural binuclear transition metal complexes with azido ion and 1,2-bis（3-（pyridin-2-yl）-lH-pyrazol-1- yl）ethane （bppe）, formulated as [M2（N3）2（bppe）2]（C104）2 （M = Co, 1; Ni, 2; Cu, 3）, were successfully synthesized. They were structurally and magnetically characterized. In 1-3, the double azido ions link two adjacent octahedral metal centers together in the end-to-on mode （EO）, with the M-NEo-M angles of 99.41°, 100.24° and 99.80°, respectively. The co-ligand bppe acts as terminal ligand to saturate the remaining coordination sites. The magnetic properties of 1-3 have been investigated in the tem- perature range of 2-300 K. Fitting of the magnetic susceptibility data revealed the occurrence of the strong ferromagnetic in- teractions [J = 26.32 cm-1 （1）, J = 38.23 cm-1 （2） and J = 139.83 cm-1 （3）]. Density functional theory calculations have been performed on 1-3 to provide a magneto-structural correlation of the ferromagnetic behavior.
