Gold(I) complexes of tetra-tert-butylcyclo-tetraphosphane

The reaction of tetra-tert-butylcyclotetraphosphane cyclo-((PBu)-Bu-t)(4) (L) with one to four equivalents of [AuCl(tht)] (tht = tetrahydrothiophene) leads to the formation of gold(I) complexes [(AuCl)(n)L] (n = 1-4, 1-4) in which the ligand coordinates up to four gold(I) chloride fragments. Complexes 1-4 show dynamic behaviour with redistribution of {AuCl} moieties which was investigated by P-31{H-1) NMR spectroscopy, DFT calculations and single crystal as well as powder X-ray diffraction.

Automated summary

The reaction between tetra-tert-butylcyclotetraphosphane cyclo-((PBu)-Bu-t)(4) (L) and [AuCl(tht)] results in the formation of gold(I) complexes with varying numbers of gold(I) chloride fragments coordinated by the ligand. The dynamic behavior of these complexes was investigated through various experimental methods.