Table 3: Electronic spectral data of Mn(II), Fe(III), Co(II), Ni(II), Cu(II), and Zn(II)-HBS complexes.

Complex , and C.T. (nm) - transitionMagnetic momentConductance S/cm

1-[Mn2(L)2(H2O)4]256, 316987.195.6525.8
2-[Fe2(H2L)(NO3)6(H2O)2] 6H2O257, 276, 4155.087.18
3-[Co2(HL)2(NO3)2(H2O)2]247, 2711.873.22
4-[Ni2(L)(NO3)2(H2O)6]267, 322, 369656
734
2.524.20
5-[Cu2(HL)2(Ac)2(H2O)2]272, 305, 3636972.734.86
6-[Zn2(HL)2(Ac)2(H2O)2]298, 3670.936.12