C-H, C=C, C-O, and C=0.

Identify all the central atoms that are sp3d-hybridized in the following molecule:

Write the MO configurations for tje valence electrons in C2 starting with ( σ2s)2.

a.) Give the bond order of Li2 ,Be2 ,C2  b.) Give the ground state electron configurations ofCO,NO ,CN-  .The gerade and ungerade designation is technically not appropriate for heteronuclear diatomics, but rather use the "*" after S or P to represent antibonding. Still, S would stand for σ. Let P represent a pair of π MO's. Enclose each MO in parenthesis followed by the number of electrons in that MO, e.g., the entry (1S*)2 would represent 1σ* 2.

How many pi bonds are present in the molecule below: 195| ΑΣΦ ?

What is the ground state electron configuration for N? O (o1s) (01,*) (02,)° (02,*)*(x2,)*(02,)² 2р O (01,) (01,*)*(02,) (02,*)*(72,*)³ What is the bond order for N? bond order:

4. Amphotericin B is a polyene antifungal agent. In the molecule, 6 C-C single bonds and 7 C=C double bonds alternate along a chain of 14 C atoms; see a schematic of the structure of the molecule below. OH OH HO O OH OH OH OH O,,.. OH HO" ОН OH NH₂ Each C atom contributes 1 p electron to the 77 orbitals in the conjugated system giving 14 electrons that move along the molecule. Assuming an average inter-nuclear distance of 140 pm, and that, in the ground state of amphotericin B, each quantum state is occupied by two electrons, use the particle-in-a-box model to calculate (a) the energy separation between the highest occupied state and the lowest unoccupied state, and (b) the frequency of the radiation required to produce a transition between the two states.

The best description of the CO bond in acetaldehyde, CH3-(C=O)-H is

GiVen the empty molecular orbital diagram below, determine the bond order for the following ion: Hez* Recall that the helium atom has an atomic number of 2 and so one neutral helium atom would have 2 electrons. Also, recall: bond order = /2(n, -n) %3D 1s 1s He (AO) Нe (МMOS) He (AO) bond order = 2.0 %3D bond order = 1.5 bond order = 1.0 bond order = 2.5 bond order = 0.5 bond order = 3.0

How many valance electrons are in valance d-orbitals in Os3+?