Multiple interpnictogen compounds with covalent single bonds between a diarylbismuth fragment and all lighter pnictogens were prepared from the corresponding diarylhalido bismuthanes. The aminobismuthanes Ph2BiNMe2 (1) and Mes2BiNMe2 (2) (Mes = 2,4,6-trimethylphenyl-) have been obtained via a salt metathesis reaction and compound 2 was successfully reacted with tBuNH2 in a condensation reaction to yield Mes2BiNHtBu (3). The bismuthanyl phosphanes Ar2BiPtBu2 (Ar = Ph: 4 and Ar = Mes: 5) and arsanes Ar2BiAstBu2 (Ar = Ph: 8 and Ar = Mes: 9) were also obtained via salt metathesis. Through a trimethylsilyl halide abstraction reaction of the diaryl halido bismuthanes and EtBu(SiMe3)2 (E = P and As), the bismuthanyl phosphanes Ar2BiPtBu(SiMe3) (Ar = Ph: 6; Ar = Mes: 7) and the arsanes Ar2BiAstBu(SiMe3) (Ar = Ph: 10; Ar = Mes: 11) have been prepared. Bismuthanyl stibanes were accessed via a condensation reaction of Mes2SbH with 1 or 2, respectively. The compound Ph2BiSbMes2 (12), which has different substituents at the bismuth and antimony atoms, was isolated and fully characterised. In contrast, the isolation of Mes2BiSbMes2 (13) was not possible due to a dynamic equilibrium with Mes4Bi2 and Mes4Sb2 which was investigated via low-temperature 1H-NMR spectroscopy in solution. The isolated compounds with a single bond between bismuth and the heavy pnictogens arsenic and antimony are rare examples of their kind. All isolated compounds (1-12) were characterised by NMR and IR spectroscopy, mass spectrometry, elemental analysis and single crystal X-ray diffraction.