Table 1: Some experimentally observed and determined characteristics of the prepared complexes (found values between parentheses).

ComplexC (%)H (%)N (%)Metal (%)ColorMagnetic moment (Debye)Decomp temp. (°C)pHConductivity (mS)Mol. (wt.)

(1)31.0 (31.9)5.9 (5.2)16.5 (15.9)13.9 (14.0)Pink4.132905.63.480425.3
(2)31.1 (32.1)5.4 (4.9)16.5 (15.9)13.8 (14.2)Green3.102905.13.700425.0
(3)32.8 (32.1)5.7 (6.2)17.4 (17.8)15.8 (16.4)Blue1.782384.94.607402.9
(4)29.9 (30.4)5.2 (4.8)15.9 (15.3)14.8 (15.1)WhiteDiam.3305.33.557440.7

(1) = [Co·Glu·Arg·(H2O)2]·0.5H2O; (2) = [Ni·Glu·Arg·(H2O)2]·0.5H2O; (3) = [Cu·Glu·Arg]·H2O; (4) = [Zn·Glu·Arg·(H2O)2]·H2O.