... Journal of Organometallic Chemistry. ... and H 2 O (10 ml) was added to destroy excess NaBH 4 . The mixture solution was extracted with CH 2 Cl 2 (30 ml×3). The combined extract was washed with 10% aqueous NH 4 Cl (10 ml×2), H 2 O (10 ml×2) and the organic layer was ...