论文摘要
本文合成了[(η6-C6H6)RuCl( μ-BDNA)(μ-Cl) RuCl(η6-C6H6)]BF4(2)和十五个RuCl2(diphosphine)(diamine)类型配合物,RuCl2(PPh3)2(L1-5) (1L1-5) [L1 =乙二胺; L2 =N,N’-二甲乙二胺; L3 = 环己二胺; L4 = 邻苯二胺; L5 = 4-三氟甲基邻苯二胺], RuCl2(BISBI)(L1-5)(2L1-5), [BISBI = 2,2’-二( (二苯基膦)甲基) -1, 1’-二苯基], RuCl2(BDPX)(L1-5)(3L1-5), [BDPX = 1,2-二((二苯基膦)甲基)苯], 其中[(η6-C6H6)RuCl(μ-BDNA)(μ-Cl) RuCl(η6-C6H6)]BF4(2)和十一个1L2-3,1L5, 2L2-5,3L2-5未见文献报道,通过(31)P、1H-NMR,元素分析和对其进行了表征。其中,配合物[(η6-C6H6)RuCl(μ-BDNA)(μ-Cl) RuCl(η6-C6H6)]BF4,RuCl2(BDPX)(L2) 得到X-射线单晶衍射结构分析,结构显示:[(η6-C6H6)RuCl(μ-BDNA)(μ-Cl) RuCl(η6-C6H6)]BF4 属于单斜晶系, P21/n 空间群, Z = 4, a = 14.498 A, b = 15.644 A, c = 20.788 A, a =90°, β= 103.404(3)°, A = 90°。配合物RuCl2(BDPX)(L4)属于三斜晶系, P-1 空间群, Z = 2, a = 10.6453A, b = 11.5320 A, c = 16.099 A, a = 76.964(2)°, β= 74.981(3)°, ? = 69.982(3)°。所有双膦二胺配合物都具有反式结构,在溶液中容易被氧化,它们在固态时均对空气较稳定。本文还系统地考察了[RuCl2(BISBI)(L3)]配合物用于苄叉丙酮的选择催化加氢反应,获得了最高达到99% 的转化率和97%的羰基催化加氢选择性。并考察了RuCl2(diphosphine)(diamine) 配合物中双膦和二胺结构的变化对催化苄叉丙酮的反应活
论文目录
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标签:双膦论文; 二胺论文; 钌配合物论文; 催化加氢论文; 不饱和羰基化合物论文;