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Template reaction of L-3-acetyl-1-phenyl-5-isopropyl-4,5-dihydro-1,2,4-triazin-6-one (lb) with 1,3-diaminopropane and nickel acetate gave the corresponding chiral complex 4 in high yield. X-ray structure determination showed that the nickel complex is square planar, and the ligand N,N’-bis[(l-phenyl-5-isopropyl-4,5-dihydro-6-oxo-1,2,4-triazin-3-yl)ethylid-ene]- propane-1,3-diamine is of tetra-aza type where the imine nitrogens and the ring HN(4) nitrogens are the coordinating sites. MS-FAB and NMR spectral data are in agreement with the X-ray structure.

zeitschrift für naturforschung b

Transition Metal Complexes of Derivatized Chiral Dihydro-1,2,4-triazin-6-ones. Part III [1]. X-Ray Crystal Structure Analysis of N,N’-Bis[(1-phenyl-5-isopropyl-4,5-dihydro-6-oxo-1,2,4-triazin-3-yl)ethylidene]- propane-1,3-diamine Nickel(II)