Insertion of fluorenone into the lanthanum–phosphorus bond of terminal phosphido complexes(PN)2La(PHR)(R=Mes(1a),R=Ph(1b)and R=tBu(1c))results in the formation of light-sensitive hemiphosphinal complexes 2a–c.Upon e...Insertion of fluorenone into the lanthanum–phosphorus bond of terminal phosphido complexes(PN)2La(PHR)(R=Mes(1a),R=Ph(1b)and R=tBu(1c))results in the formation of light-sensitive hemiphosphinal complexes 2a–c.Upon exposure to daylight,the P–C bonds in 2a–c break resulting in the formation of diphospines and a lanthanum bound fluorenonyl-radical.The scope and mechansim of this reaction are experimentally and theoretically evaluated.展开更多
文摘Insertion of fluorenone into the lanthanum–phosphorus bond of terminal phosphido complexes(PN)2La(PHR)(R=Mes(1a),R=Ph(1b)and R=tBu(1c))results in the formation of light-sensitive hemiphosphinal complexes 2a–c.Upon exposure to daylight,the P–C bonds in 2a–c break resulting in the formation of diphospines and a lanthanum bound fluorenonyl-radical.The scope and mechansim of this reaction are experimentally and theoretically evaluated.
