Heteromultimetallic Transition Metal Complexes Based on Unsymmetrical Platinum(II) Bis-Acetylides
作者:Rico Packheiser、Petra Ecorchard、Tobias Rüffer、Heinrich Lang
DOI:10.1021/om800232m
日期:2008.7.1
The synthesis of a unique series of heteromultinuclear transition metal complexes with up to seven different metal atoms is reported by using consecutive synthesis methodologies including metathesis, dehydrohalogenation, and carbon−carbon cross-coupling reactions. In these compounds the metals Ti, Fe, Ru, Os, Re, Pt, and Cu are connected via carbon-rich bridging units comprising 1,3,5-triethynylbenzene
通过使用包括复分解,脱氢卤化和碳-碳交叉偶联反应在内的连续合成方法,报道了具有多达七个不同金属原子的一系列独特的杂多核过渡金属配合物的合成。在这些化合物中,金属Ti,Fe,Ru,Os,Re,Pt和Cu通过富含碳的桥接单元连接,该桥接单元包括1,3,5-三乙炔基苯和2,2'-联吡啶基-5-基。这些分子已通过元素分析,IR和NMR光谱以及ESI-TOF质谱进行了表征。这些化合物的主要结构特征是不对称的反式构型的铂(II)双乙炔化物单元。的1-(FcC≡C)的结构的-3 - [(吨卜2联吡啶)(CO)3 ReC≡C] -5- [反式- (PH 3 P)2(RcC≡C)PtC≡C]Ç 6 ħ 3(3)和1,3 - 〔(PH 3 P)2(η 5 -C 5 H ^ 5)OsC≡C] 2 - 5 - [(CO)3(Cl)的重(bpyC≡C)] c ^ 6 ħ 3(18)(FC =(η 5 -C 5 H ^