Question
With the help of suitable examples and structures, explain why some of the 16-electron organometallic complexes are stable. For a dⁿ metal ion which form will be more stable, 16-electron square planar complex (d⁸ and 8 ligand electrons) or a 18-electron complex (d⁸ and 10 ligand electrons)? Justify your answer.
Answer :
Word Count : 241
Some organometallic complexes deviate from the 18-electron rule and exhibit stability with only 16 electrons. This is especially common in transition metal complexes with d⁸ configuration, such as those of Ni(II), Pd(II), and Pt(II). The reason lies in the preferred geometry and electronic arrangement. In square planar geometry, the crystal field splitting leads to significant stabilization of the $d_{x^2-y^2}$ orbital, _________ _____ __________ ________ _______.
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Some organometallic complexes deviate from the 18-electron rule and exhibit stability with only 16 electrons. This is especially common in transition metal complexes with d⁸ configuration, such as those of Ni(II), Pd(II), and Pt(II). The reason lies in the preferred geometry and electronic arrangement. In square planar geometry, the crystal field splitting leads to significant stabilization of the $d_{x^2-y^2}$ orbital, _________ _____ __________ ________ _______.
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