Hydrogen-bonded adducts of ferrocene-1,1'-diylbis(diphenylmethanol): monomeric and dimeric 1:1 adducts with 1,2-bis(4-pyridyl)ethane and 1,2-diaminoethane

In ferrocene-1,1'-diylbis(diphenylmethanol)-4,4'-ethylenedipyridine (1/1), [Fe(C18H15O)(2)].C12H12N2, there is an intramolecular O-H . . .O hydrogen bond in the ferrocenediol component and a single O-H . . .N hydrogen bond linking the two components into a finite monomeric adduct. Ferrocene-1,1-diylbis(diphenylmethanol)-ethylenediamine (1/1), [Fe-(C18H15O)(2)].C2H8N2, crystallizes with Z' = 2 in space group P (1) over bar, and there are two independent four-component aggregates in the structure, both of which are centrosymmetric. In the first type of aggregate, the molecular components are linked by O-H . . .N and N-H . . .O hydrogen bonds, in which both diamine N atoms participate; in the second type of aggregate, the diamine component is disordered over two sets of sites, but only one N atom is involved in the hydrogen bonding.