Synthesis and Characterization of the Nickel(II) Complex of a Macrocyclic Schiff Base Ligand with a Single Pendant Coordinating Hydroxyl Arm
Australian Journal of Chemistry
56(12) 1255 - 1257
Published: 28 November 2003
Abstract
The synthesis and characterization of a nickel(
II) complex of the ligand 8,9,18,19-tetrahydro-7
H,17
H-dibenzo[
f,
o][1,5,9,13]dioxadiazacyclohexadecin-18-ol (L) is described. Complex [NiL(NO
3)]NO
3 was prepared by facile template reaction of the appropriate dialdehyde 2-(3-(2-formylphenoxy)-2-hydroxypropoxy)benzaldehyde (1) and 1,3-diaminopropane in the presence of nickel nitrate. X-Ray crystallography indicated that the compound was a six-coordinate complex that contained a pentadentate ligand and an NO
3− anion
trans to the alcoholic donor. The blue complex contains nickel(
II) in a distorted octahedral environment of N
2O
4 donors, and crystallizes in the monoclinic space group
C2/
c with
a 26.921(10),
b 9.075(2),
c 21.193(7) Å, β 122.12(2)°, and
Z 8. From spectro-scopic and conductivity studies of the complex it has been found that six-coordinate [NiL(NO
3)]
+ cations and NO
3− anions are formed in solution.
https://doi.org/10.1071/CH03071
©
CSIRO 2003