Question

In: Chemistry

In splitting diagram of trigonal bipyramid geometry, why does z2 orbital have the highest energy and...

In splitting diagram of trigonal bipyramid geometry, why does z2 orbital have the highest energy and why does the energy decrease by this order?

z2 > xy,x2-y2 > xz,yz

Expert Solution

According to crystal field theory trigonal pyramidal complex in coordinate complexes, when ligands approach towards metal ions, the valence d-orbitals of metal ions splits into t2g and eg levels according to their energy levels. The electrons of ligands with low energy goes to t2g and high energy level is dz^2. The splitting of orbitals in the presence of ligand forms:

a single energy level containing only

a twice-degenerate energy level containing and

a twice-degenerate energy level consisting of and

This is because and orbitals are at perpendicular angle to the Z axis and differ only by their alignment. The orbital having lobes pointing along the coordinate axis while orbital lobes point in-between the coordinate axis. That is the reason they have similar energy at the time of splitting.

According to the crystal field model the has a central ‘hoop’ that is pointing towards the ligands thus has the highest energy due to repulsion force. In the xy plane while the and have a nodal plane thus they should have a lower energy.

You would better understand if you correlate with d-orbital geometry diagram.

Because of these coordination geometry of d-orbitals around the principal axis the order of energy is : d

queen_honey_blossom answered 3 years ago

what is the orbital energy diagram for the nitride ion.

1.Fill in the orbital energy diagram for aluminum.

1.Fill in the orbital energy diagram for aluminum. _________↑↑↓ _________↑↑↓ _________↑↑↓ 3p _________↑↑↓ 3s _________↑↑↓ _________↑↑↓ _________↑↑↓ 2p _________↑↑↓ 2s ... _________↑↑↓ 1s 2. Fill in the orbital energy diagram for the beryllium atom. _________↑↑↓ _________↑↑↓ _________↑↑↓ 2p _________↑↑↓ 2s ... _________↑↑↓ 1s 3. Write the complete electron configuration for the oxygen atom. Using NOBLE GAS notation write the electron configuration for the sulfur atom. . 4. Write the complete electron configuration for the nickel atom. Using NOBLE GAS notation...

how many electrons are in the highest energy orbital of the element copper?

Prepare a molecular orbital diagram for the BeH2 molecule. Assume in orbital potential energy of 4.0...

Prepare a molecular orbital diagram for the BeH2 molecule. Assume in orbital potential energy of 4.0 eV for the 2p orbitals of Be and -9.3eV for the 2s orbital. Assume that both the 2p and the 2s of Be interact with the two group orbitals of the hydrogens.

Draw sigma only molecular orbital diagram for CH4 assuming square planar geometry.

Show the orbital-filling diagram for N (nitrogen). Order subshells by energy, with the lowest-energy subshell at the left.

part AShow the orbital-filling diagram for N (nitrogen). Order subshells by energy, with the lowest-energy subshell at the left. Drag the appropriate labels to their respective targets.part bShow the orbital-filling diagram for S (sulfur). Order subshells by energy, with the lowest-energy subshell at the left.Drag the appropriate labels to their respective targets.part cShow the orbital-filling diagram for Br (bromine). Order subshells by energy, with the lowest-energy subshell at the left.Drag the appropriate labels to their respective targets.

Show the orbital-filling diagram for Br (bromine). Order subshells by energy, with the lowest-energy subshell at the left.

Part D Show the orbital-filling diagram for Br (bromine). Order subshells by energy, with the lowest-energy subshell at the left. Drag the appropriate labels to their respective targets. Part B Show the orbital-filling diagram for N (nitrogen). Order subshells by energy, with the lowest-energy subshell at the left. Drag the appropriate labels to their respective targets.

Assuming that the molecular orbital energy level diagram for homonuclear diatomic molecules can be applied to...

Assuming that the molecular orbital energy level diagram for homonuclear diatomic molecules can be applied to heteronuclear diatomic molecules, arrange the NO, NO- and NO+ in order of decreasing bond length, from longest to shortest. Explain why that order is accurate using molecular orbital diagrams and what you know about how bond lengths behave.

use the molecular orbital energy diagram below to answer the questions about bond order for the...

use the molecular orbital energy diagram below to answer the questions about bond order for the molecule O2

For CO2+ 1.Assuming that it has an octahedral geometric configuration, draw an orbital energy diagram and...

For CO2+ 1.Assuming that it has an octahedral geometric configuration, draw an orbital energy diagram and place the valence electrons in the diagram for its ground state. 2. For the same complex, draw an orbital energy diagram and place the valence electrons in the diagram that would indicate that it is in an excited state. 3. Using the two energy diagrams and the color you have chosen (as the color absorbed), describe the process by which transition metal complexes display...