Ligand exchange reactions of ReCl4(PPh3)2 with tridentate diacidic ligands with the donor set ONO(S). Molecular structures of the resulting oxo-rhenium(V) complexes
作者:Stefan Sawusch、Uwe Schilde、Ines Starke、Andreas Lehmann、Erhard Uhlemann
DOI:10.1016/s0020-1693(97)05811-8
日期:1998.2
rhenium(V) chelates, X-ray analyses were carried out. The crystal structures were determined for salicylaldehyde thiobenzoylhydrazonato (2−) salicylaldehyde thiobenzoylhydrazonato oxo-rhenium(V) (1) C28H21N4O3Re: monoclinic , β = 96.416(13)°, Z = 4, R1 = 0.0513; benzoylacetone thiobenzoylhydrazonato (2−) benzoylacetone thiobenzoylhydrazonato oxo-rhenium(V) (2) C34H29N4S2Re: triclinic , γ = 79.50(3)°, Z = 2
研究了ReCl 4(PPh 3)2与三齿二酸配体与供体组ONO(S)的配体交换反应。通过对中间产物和最终产物进行质谱分析和X射线结构分析,可以明确反应过程。形成的IV(IV螯合物首先反应进一步通过空中氧化反应生成氧((V)螯合物。为阐明这些rh(V)螯合物的结构性质,进行了X射线分析,并确定了水杨醛的晶体结构硫代苯甲酰肼(2-)水杨醛硫代苯甲酰肼(V)(1)C 28 H 21 N 4 O 3 Re:单斜晶系,β = 96.416(13)°,Z = 4,R 1 = 0.0513; 苯甲酰基丙酮硫代苯甲酰肼(2-)苯甲酰基丙酮硫代苯酰肼(V)(2)C 34 H 29 N 4 S 2 Re:三斜晶系,γ = 79.50(3)°,Z = 2,R 1 = 0.0354。苯甲酰丙酮基-二氯-三苯基膦-氧-(V)(3b)的特征是分解产物,是from(IV)氧化为氧-((V)和配体苯甲酰丙酮苯甲酰hy