Trigonal‐Bipyramidal vs. Octahedral Coordination in Indium(III) Complexes with Potentially
<i>S,N,S</i>
‐Tridentate Thiosemicarbazones
作者:Federico Salsi、Maximilian Roca Jungfer、Adelheid Hagenbach、Ulrich Abram
DOI:10.1002/ejic.201901356
日期:2020.4.7
Three bis‐chelates of indium(III) with (partially fluorinated) S,N,S‐tridentate thiosemicarbazones (H2L) were prepared and their structures were studied in solution and in the solid state by NMR, ESI MS and single‐crystal X‐ray diffraction. The three compounds are isostructural in solution with five‐coordinate InIII ions and two differently coordinated thiosemicarbazonato ligands, [In(L)(HL)]. A t
制备了三价铟(III)与(部分氟化的)S,N,S三齿硫代半氨基甲酮(H 2 L)的双螯合物,并通过NMR,ESI MS和单晶研究了它们在溶液和固态下的结构X射线衍射。这三种化合物在溶液中具有五个配位的In III离子和两个不同配位的硫代半碳氮烯配体[In(L)(HL)],处于同构状态。温度相关11 H NMR研究反映了分子中存在动态过程,例如具有部分双键特征的CN键周围旋转受阻的解析以及5位和6位配位物种之间pH引发的异构化。后者可以通过分离具有不同固态结构的化合物[In(L)(HL)]和[In(L)2 ] –来证实,这取决于硫代半氨基甲酮周围的氟取代基。