Efficient Synthesis and Characterization of Some Novel Nitro-Schiff Bases and Their Complexes of Nickel(II) and Copper(II)

Table 2

The results of the reaction for preparation of Schiff base complexes.

Entry	Ligand	Metal(II)	Product	Time (min)	Yield^a (%)	M.p (°C)
1	L1	Ni(II)	L1[Ni(II)]	80	89	>350
2	L2	Ni(II)	L2[Ni(II)]	85	83	>350
3	L3	Ni(II)	L3[Ni(II)]	85	90	>350
4	L4	Ni(II)	L4[Ni(II)]	90	87	307
5	L5	Ni(II)	L5[Ni(II)]	90	88	312
6	L6	Ni(II)	L6[Ni(II)]	90	87	>350
7	L7	Ni(II)	L7[Ni(II)]	90	85	>350
8	L8	Ni(II)	L8[Ni(II)]	80	83	337
9	L1	Cu(II)	L1[Cu(II)]	75	88	335
10	L2	Cu(II)	L2[Cu(II)]	70	88	>350
11	L3	Cu(II)	L3[Cu(II)]	85	90	255
12	L4	Cu(II)	L4[Cu(II)]	80	89	320
13	L5	Cu(II)	L5[Cu(II)]	90	82	283
14	L6	Cu(II)	L6[Cu(II)]	95	90	>350
15	L7	Cu(II)	L7[Cu(II)]	95	85	302
16	L8	Cu(II)	L8[Cu(II)]	90	88	>350

^aIsolated yields.