Versatile bridging ability of secondary thioamide group for constructing metal cluster based on pincer complex

The crystallization of the SCS pincer platinum complex with secondary thioamide groups, [4-methyl-2,6-bis(anilinothiocarbonyl)-κ2S,S’-phenyl-κC1]chloroplatinum(II), spontaneously forms a trinuclear cluster complex accompanied by liberating HCl in DMSO/EtOH mixture. The crystal structure of the SNS pincer copper complex with secondary thioamide groups, [2,5-bis(benzylaminothiocarbonyl)-κ2S,S’-pyrrolyl-κN1]chlorocopper(II), exhibits a dimer structure bearing the bridging thioamide group. The thioamide group acts as the bridging ligand of the multimetallic complexes in different anionic and neutral manners.

Graphical abstractThe secondary thioamide group acts as the bridging ligand in anionic and neutral forms for constructing the Pt and Cu clusters, respectively. Figure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights► Formations of metal clusters from monometallic pincer complexes. ► Versatility of a secondary thioamide group as a bridging ligand. ► Trimetallic Pt complex with iminothiolate ligand. ► Five-coordinated copper complex.