Synthesis and characterization of nickel-, palladium- and platinum(II) complexes of three o,o′-dihydroxydiarylazo dyes: Determination of the coordination geometry of this comprehensive series of tridentate diaryl dye complexes by combining results from NMR and X-ray experiments with theoretical ab initio calculations
作者:Jens Abildgaard、Poul Erik Hansen、Jens Josephsen、Bjarke K.V. Hansen、Henning Osholm Sørensen、Sine Larsen
DOI:10.1016/j.ica.2006.05.027
日期:2006.11
been established that complexes with different group 10 metals are iso-structural by isomorphology of the crystals as determined by X-ray powder diffraction studies on the complexes containing pyridine in the fourth coordination site. Furthermore, we present a method to determine the coordination geometry by comparison of calculated 13C chemical shifts for possible coordination modes optimized by ab initio
摘要方平面铂(II)配合物[Pt(L)(tba)](L = 5,5'-dichloro-2,2'-dihydroxyazoazobenzenate(dhab),(5-chloro-2-hydroxyphenylazoazo)的合成)-3-氧代-N-苯基丁酰胺(hpab)或(5-氯-2-羟基苯基偶氮)-2-萘甲酸酯(hpan)和(tba)=三丁胺),以及全套类似配合物[ M(L)(py)](M =镍(II),钯(II),铂(II)和(py)=吡啶)。通过单晶X射线衍射,已将配位氮分配给了与[Ni(hpab)(py)]和[Pt(hpan)(tba)]中5-氯-2-羟基苯基取代基连接的偶氮氮方法。已经确定,通过X射线粉末衍射研究,对在第四配位点上含有吡啶的配合物进行测定,通过晶体的同形学可以确定具有不同第10族金属的配合物是同构的。此外,我们提出了一种方法,该方法通过比较计算出的13C化学位移来