Synthesis and X-ray crystal structure of a tricyclic lead–nitrogen–boron heterocycle

1,3,5,7-Tetra-t-butyl-4,8-Biphenyl-1,3,5,7-tetra-aza-2,6-diplumba-4,8-diboratricyclo[4.2.0.02,5]octane-1,5-diium-2,6-diide(1)hasbeen obtained from PhB(NButLi)2 and PbCl4in hexane or from PbCl2 intetrahydrofuran and structurally characterised by X-ray diffraction.