Skip to main content

Advertisement

Table 3 Elemental analysis and some physical properties of OBH and its complexes

From: Spectral, thermal, molecular modeling and biological studies on mono- and binuclear complexes derived from oxalo bis(2,3-butanedionehydrazone)

Compound, empirical formula M.W. (Found, m/e) Color M.P. (°C) Λ (Ohm−1 cm2 mol−1)a C % Calcd. (Found) H % Calcd. (Found) N % Calcd. (Found) M % Calcd. (Found)
OBH C10H14N4O4 254.25 (255.30) White 247–249 1.76 46.66 (47.04) 5.75 (5.55) 22.70 (22.34)
[Co(OBH)2Cl]Cl.½EtOH C21H31N8O8.5Cl2Co 661.395 Pale brown >325 48.0 38.13 (38.13) 4.72 (4.94) 16.94 (16.68) 8.91 (8.63)
[Zr(OBH)Cl4]·2H2O C10H18N4O6Cl4Zr 523.33 (523.4) Pale orange >325 20.10 22.95 (22.63) 3.47 (3.87) 10.70 (10.79) 17.70 (17.20)
[Zn(OBH–H)2] C20H26N8O8Zn 571.84 Yellowish white >325 2.62 42.09 (42.49) 4.58 (5.08) 19.59 (19.39)  
[VO(OBH–H)2]·H2O C20H26N8O10V 591.86 Brown 293 9.74 40.58 (39.99) 4.77 (4.98) 18.93 (18.28) 8.45 (7.93)
[Cu(OBH)2Cl2]·2H2O C20H32N8O10Cl2Cu 678.99 Yellowish green >325 22.50 35.37 (35.35) 4.45 (4.58) 16.50 (16.07) 9.34 (9.08)
[Ni2(OBH)Cl4]·H2O·EtOH C20H22N4O6Cl4Ni2 577.62 (371.7)b Reddish brown >325 37.30 24.95 (24.53) 3.84 (4.11) 9.70 (9.39) 20.34 (20.54)
[Pd2(OBH)(H2O)2Cl4]·2H2O C10H22N4O4Cl4Pd2 618.18 (620.30) Brown >325 24.48 20.63 (20.96) 3.81 (4.20) 9.62 (9.39)  
  1. aMolar conductance values for 0.001 mol L−1 DMSO solution
  2. bThe value represents Ni(OBH)Cl·½EtOH