Pd(II) and Au(I) chloride complexes with tetrakis(butylthiomethyl)calix[4]arene: Synthesis and crystal structures
摘要:
Two novel complexes, (AuCl)(4)L-3 (I) and (PdCl2)(2)L-3 (II) (L-3 is calix[4]arene-thioether), were synthesized and their structures were determined. In complex I, one thioether group of molecule L-3 is coordinated to every Au atom. In complex II, the bidentate coordination of L-3 to the Pd atoms is observed; two thioether groups are in the trans-positions in the Pd square surrounding. Both complexes have the layered crystal lattices. In the Au complex, the layers are more stable due to the short contacts Au-Au (3.19-3.23 angstrom).