Synthesis and characterisation of some complexes of manganese(II) and iron(II) picrates with heterocyclic amines

Abstract

Complexes of manganese(II) and iron(II) picrates with various bidentate (L) and monodentate (L′) heterocyclic bases have been synthesised; their compositions have been established as [ML3]A2 (1), [ML2 · 2 H2O]A2 (2), [ML′6]A2 (3) and [ML′4 · 2 H2O]A2 (4), where M = FeII and MnII, L = 2,2′-bipyridyl (bipy) and 1,10-phenanthroline (phen) in (1), A = picrate anion; M = MnII, L = bipy and phen in (2); M = FeII, L′ = pyridine (py), 4-picoline (4-pic) and 3-picoline (3-pic) in (3); M = MnII, L′ = py, 4-pic, quinoline (quin) and 2,6-lutidine (2,6-lut) in (4) and also M = FeII, L′ = quin and 2,6-lut. © 1981 Verlag Chemie GmbH.