5.6 Theories of coordination compound · Part 3

metal atom/ion       3d 4s 4p Nature of ligand CO Strong field ligand causes the pairing of 4s electron with 3d electrons in the metal Outer orbitals of metal atom/ion in presence of ligand      3d 4s 4p Hybridisation Coordination number - Hybridisation - sp Hybridised orbitals of the metal atom in the complex          3d s p Hybridised orbitals Geometry Tetrahedral Magnetic property No. of unpaired electrons = ; Hence diamagnetic Magnetic moment (Using spin only formula) µ s = n(n+ ) = XII U5 Coordination XII U5 Coordination - - - - Illustration Complex [Ni(CN) ] - Central metal atom/ion and its outer electronic configuration Ni + : 3d , 4s Outer orbitals of metal atom/ion      3d 4s 4p Nature of ligand CN - Strong field ligand causes the pairing of 3d electrons in the metal Outer orbitals of metal atom/ion in presence of ligands     3d 4s 4p Hybridisation Coordination number - Hybridisation - dsp2 Hybridised orbitals of the metal atom in the complex         3d ds p Hybridised orbitals 4p z Geometry Square planar Magnetic property No. of unpaired electrons = ; Hence diamagnetic Magnetic moment (Using spin only formula) µ s = n(n+ ) = Illustration Complex [Fe(CN) ] - Central metal atom/ion and its outer electronic configuration Fe + : 3d , 4s Outer orbitals of metal atom/ion      3d 4s 4p Nature of ligand CN - Strong field ligand causes the pairing of 3d electrons in the metal XII U5 Coordination XII U5 Coordination - - - - Complex [Fe(CN) ] - Outer orbitals of metal atom/ion in presence of ligands   