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Table 1 Analytical and physical data of the copper(II)- isatinic complexes.

From: The ligational behavior of an isatinic quinolyl hydrazone towards copper(II)- ions

No. Reactants (HL + metal salt) Complex (F.W.) Color % Yield m.p. (°C) Elemental Analysis; % Found/(Calcd.)
       C H N M
  HL HL (C19H16N4O; 316.36) Red 60 > 300 72.06 (72.13) 5.17 (5.10) 17.70 (17.71) ----
1 Cu (ClO4)2.6H2O [Cu (L) (HL) (H2O)2] ClO4.3H2O (884.79) Red 60 > 300 51.54 (51.58) 4.63 (4.67) 12.69 (12.67) 7.25 (7.18)
2 Cu (NO3)2.21/2H2O [Cu (HL)2 (NO3)2].1¼ H2O (842.81) Yellowish brown 61 > 300 54.10 (54.15) 4.12 (4.13) 16.44 (16.62) 7.62 (7.54)
3 Cu Cl2.2H2O [Cu (L) (H2O) Cl].1/2 H2O.1/8 MeOH (445.38) Dark green 30 252 51.48 (51.57) 4.14 (4.19) 12.57 (12.58) 14.10 (14.27)
4 Cu Br2 [Cu (L) (H2O)3 Br].3/8 H2O (519.60) Granulated greenish brown 60 > 300 43.92 (43.92) 4.15 (4.22) 10.81 (10.79) 12.40 (12.23)
5 Cu (OAc)2.H2O [Cu (L)2].1/8 H2O.1/8 MeOH (700.51) Bright greenish brown 82 292 65.47 (65.36) 4.51 (4.42) 15.93 (15.99) 8.90 (9.07)
6 Cu SO4.5H2O [Cu2 (L)2 (H2O)4 SO4].2 H2O.MeOH (994) Dark orange 64 > 300 47.12 (47.12) 4.69 (4.66) 11.13 (11.28) 12.70 (12.79)