Adducts of silver(I) nitrite with triphenylphosphine and N,N′-bidentate aromatic bases, L, of the form AgNO2:PPh3:L (1:1:1)

Adducts of the form AgNO2:PPh3: L (1:1:1) (L = 2,2′-bipyridyl (bpy), 1,10-phenanthroline (phen), 2,9-dimethylphenanthroline (dmp)) have been synthesized and characterized by analytical, spectroscopic (IR, far-IR, 1H and 31P NMR) studies, together with a single crystal X-ray study for the L = dmp adduct, for comparison with the recently reported counterpart adducts of silver(I) nitrate. While the silver(I) coordination environment is still dominated by the quasi-planar N2AgP motif (Ag–P 2.378(1), Ag–N 2.364(3), 2.392(4) Å), the interaction of the nitrite is symmetrical (Ag–O 2.512(4), 2.543(5) Å) and invasive, the PAgN2 angle sum diminished to 324.7°.