3,3‘-Bis(triphenylsilyl)biphenoxide as a Sterically Hindered Ligand on Fe(II), Fe(III), and Cr(II)
作者:Ajay Kayal、Sonny C. Lee
DOI:10.1021/ic010909y
日期:2002.1.1
((TPS)LO(2))Fe(THF)(2) (8) or ferric monomer ((TPS)LO(2))FeCl(bipy) (10), respectively. Dimer 4 reacts with exogenous ligands to form monomeric ligand adducts of Fe(II): with py, ((TPS)LO(2))Fe(py)(2) (5); with bipy, ((TPS)LO(2))Fe(bipy) (6); with XyNC (Xy = 2,6-xylyl), ((TPS)LO(2))Fe(CNXy)(4) (7); and with THF, 8. Complexes were characterized in solution by (1)H NMR and in the solid state by single-crystal
空间受阻的3,3'-双(三苯基甲硅烷基)-1,1'-bi-2-苯氧基配体([(TPS)LO(2)](2)(-))的结构配位化学在Fe(II),Fe(III)和Cr(II)上研究了用于不对称诱导的手性双萘酚氧化物配体的结构。配体二醇((TPS)L(OH)(2),2)可以通过方便的两步邻位金属化/硅烷化/去保护顺序,由2,2'-二甲氧基联苯以数克级制得。配体二价阴离子的钠盐(Na(2)[(TPS)LO(2)],3)可通过NaH去质子化获得,并通过结晶学表征,每个阳离子结合两个THF配体。Fe [N(SiMe(3))(2)](2)或Cr [N(SiMe(3))(2)](2)(THF)(2)与双酚2在芳烃溶剂中的质子分解得到[Fe (mu-(TPS)LO(2))](2)(4)或((TPS)LO(2))Cr(THF)(2)(9),FeCl(2)或FeCl(3)/ bipy与联苯酚盐3在THF中的阴离