A PAUCITY OF HYDROGEN-BONDS IN ,1'-DIYLBIS[BIS(4-METHOXYPHENYL)METHANOL]-METHANOL (3 2)/

In the 3:2 adduct formed between errocene-1,1'diylbis[bis(4-methoxyphe nyl)methanol] and methanol, 3[Fe(C20H19O3)(2)].2CH(4)O, the ferrocened iol occupies two types of site. Ferrocenediol molecules in general pos itions form intramolecular O-H...O hydrogen bonds and are hydrogen-bon ded to methanol molecules by a single O-H...O hydrogen bond, while fer rocene-diol molecules lying across centres of inversion form no O-H... O hydrogen bonds. Overall, only half of the hydroxyl groups in the asy mmetric unit act as donors in O-H...O hydrogen bonds, while none of th e seven independent methoxy groups acts as accepters of O-H...O hydrog en bonds.