Crystal structure of bis-{1-[1-(3-aminopentylimino)ethyl]naphthalen-2- olato}nickel(II), [Ni(C17H21N2O)2], C34H42N4NiO2

C34H42N4NiO2 ,m onoclinic, P21/n (no. 14), a =9 .426(2) A, b =1 5.610(3) A, c =1 0.018(2) A, / =9 2.115(2)°, V =1 473.0 A 3 , Z =2 , Rgt(F) =0 .0699, wRref(F 2 ) =0 .1333, T =2 98 K. Source of material 1-(2-hydroxynaphthalen-1-yl)ethanone (0.19 g, 1m mol) and propane-1,3-diamine (0.10 g, 1m mol) were mixed an ds tirred in methanol (20 mL )a tr oom temperature for 30 min. Then to the mixture was added with stirring am ethanolic solution (10 mL )o f nickel acetate (0.25 g, 1m mol). The final mixture was further stirred at room temperature for 30 min, and filtered. Green, blockshaped single crystals of the complex, suitable for X-ray diffraction were forme dd uring slow evaporation of the solution in air. Experimental details Hydrogen atom sw ere positioned geometrically and constrained to ride on their parent atoms, with C–H distances of 0.93-0.97 A, N–H distances of 0.90 A, and with Uiso(H) =1 .2Ueq(C,N) and 1.5Ueq(Cmethyl).