Synthesis and Characterisation of Co (II), Cu(II) and Fe (III) Macrocyclic Complex of 2, 3, 4 -Pyridine- 1, 3, 5, 8, 11, 14- Hexaazacyclohexadeca-2-Ene Bonded With Cyano and Thiocyanato Ligands. Int. J. Multidiscip. Curr. Res. 2014, 2 (5), 900-904. https://doi.org/10.14741/.