Novel palladium(II) and platinum(II) complexes of biocidal benzisothiazolinone (Bit); X-ray crystal structures of co-crystallised Bit/BitO and cis-Pd(en)(Bit−1H)2·H2O

Reaction of benzisothiazolinone (Bit), a well-known biocide, with the Pd(II) and Pt(II) am(m)ine precursors cis-[Pd(en)(H2O)2](NO3)2 and cis-[Pt(NH3)2(H2O)2](NO3)2 yielded cis-Pd(en)(Bit−1H)2 and cis-Pt(NH3)2(Bit−1H)2, respectively. Bit is bound to the metal centres in both cases through the deprotonated isothiazolinone N. The crystal structures of a Bit/BitO co-crystal and cis-Pd(en)(Bit−1H)2·H2O are also described.

Graphical abstractTwo novel Pd(II) and Pt(II) complexes of the potent biocide benzisothiazolinone (Bit), cis-Pd(en)(Bit−1H)2 and cis-[Pt(NH3)2(Bit−1H)2], have been synthesised and characterised. Bit is bound to the metal centres in both cases through the deprotonated isothiazolinone N. The crystal structures of a Bit/BitO co-crystal and cis-Pd(en)(Bit−1H)2·H2O are also described.Figure optionsDownload full-size imageDownload as PowerPoint slide