Considering σ-bonding only, in the MO diagram of a metal complex with trigonal bipyramidal (TBP) geometry… · ABC26IN1489
Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Metal Carbonyls · Exam: CSIR NET JUNE 2019 · Marks: 2 · Difficulty: Medium
Considering $\sigma$-bonding only, in the MO diagram of a metal complex with trigonal bipyramidal (TBP) geometry, the d-orbitals which remain non-bonding are
(a)$\mathrm{d}_{z^{2}}$ and $\mathrm{d}_{\mathrm{xz}}$
(b)$\mathrm{d}_{\mathrm{xz}}$ and $\mathrm{d}_{\mathrm{yz}}$
(c)$\mathrm{d}_{x^{2}-y^{2}}$ and $\mathrm{d}_{\mathrm{xy}}$
(d)$\mathrm{d}_{z^{2}}$ and $\mathrm{d}_{\mathrm{yz}}$
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
In a trigonal bipyramid d_z² (axial) and the d_x²−y²/d_xy pair (equatorial) are σ-bonding; d_xz and d_yz point between the ligands and remain non-bonding.