Structural Modulation of Cu(I) and Cu(II) Complexes of Sterically Hindered Tripyridine Ligands by the Bridgehead Alkyl Groups
作者:Masahito Kodera、Yuuji Kajita、Yoshimitsu Tachi、Koji Kano
DOI:10.1021/ic026008m
日期:2003.2.24
Structures of Cu(I) and Cu(II) complexes of sterically hindered tripyridine ligands RL = tris(6-methyl-2-pyridyl)methane (HL), 1,1,1-tris(6-methyl-2-pyridyl)ethane (MeL), and 1,1,1-tris(6-methyl-2-pyridyl)propane (EtL), [Cu(RL)(MeCN)]PF(6) (1-3), [Cu(RL)(SO(4))] (4-6), and [Cu(RL)(NO(3))(2)] (7-9), have been explored in the solid state and in solution to gain some insights into modulation of the copper
位阻三吡啶配体的Cu(I)和Cu(II)配合物的结构RL =三(6-甲基-2-吡啶基)甲烷(HL),1,1,1-三(6-甲基-2-吡啶基)乙烷(MeL)和1,1,1-三(6-甲基-2-吡啶基)丙烷(EtL),[Cu(RL)(MeCN)] PF(6)(1-3),[Cu(RL )(SO(4))](4-6)和[Cu(RL)(NO(3))(2)](7-9)已在固态和溶液中进行了探索,以获取一些见识通过桥头烷基(CH,CMe和CEt)调节铜的配位结构。1-9的晶体结构表明,RL以三齿面部封端模式结合铜离子,但3除外,其中EtL以二齿模式螯合有两个吡啶基氮原子。为避免桥头烷基与3-H(py)原子之间发生空间排斥,与HL的Cu(I)和Cu(II)配合物相比,MeL和EtL的Cu(I)和Cu(II)配合物中的吡啶环向Cu侧移动,从而导致非键合原子间的显着差异距离,HH(在3-H(py)原子之间),NN(在