Order the following species with respect to carbon-oxygen bond length (longest to shortest). CO,

Order the following species with respect to carbon-oxygen...

Key Concepts

Bond Order

Bond order is the number of chemical bonds between a pair of atoms. Higher bond orders (such as triple or double bonds) typically result in shorter and stronger bonds because the increased number of shared electrons between the atoms pulls them closer together. Assessing bond order is essential for predicting relative bond lengths and strengths among different molecules.

Resonance Delocalization

Resonance delocalization occurs when a molecule can be represented by multiple valid Lewis structures, which contributes to the overall bonding picture. In species where resonance is significant, like molecules with delocalized electrons, the bond character becomes intermediate between a single and a double bond. This results in bond lengths that are typically shorter than a pure single bond but longer than a pure double bond.

Molecular Structure and Geometry

Molecular structure and geometry refer to the three?dimensional arrangement of atoms within a molecule. This spatial configuration affects how the electron clouds, especially in bonds like carbon–oxygen, are arranged and distributed. The bond angles and hybridization states derived from the molecular geometry can influence bond lengths and strengths, making it an essential concept for understanding variations in bond characteristics.

Transcript

00:01 So in this problem number 95, what is the order of following species with respect to the co bond length? so we have given some species that is ch3oh, then we can see carbon dioxide, co and carbonate ion.

00:16 So these are the following species we have given in the question.

00:20 And we find out the what is the order of co bond length.

00:29 What is the order of co bond length so what is the order of co bone length that is we find out from longest to shortest longest to shortest and then the other part of the question is what is the order from weakest to strongest co bond co bond so firstly we can draw these structure like ch3 oh is basically like like the ch3 oh it is like this and then we can see the structure of carbonate ions so this is carbon and this is oxygen oxygen and here it can make a double bone now we can put the electrons so one two three four five six and here negative charge and similarly one two three four five six and negative charge and here one two three four because we know that the oxygen can oxygen have six valence electrons so now next we can see that the structure of co2 is like this so here one two three four and here one two three four and finally the structure of co is c triple bond oh and here one two so now these are the structures so we can see that in general basically the triple bond we can see that in general we have single bond we have double bond and we have triple bond so basically single bond has the longest bone length so this is the single bond has the longest bond length and in case of triple bond it has the shortest bond length it has the shortest bone length so that mean triple bond has the shortest bone length so that means it required more more energy to break the bond so now we can see that in this structure so that mean this ch3 oh is basically a single bond and single bonded structure so this is the order of bond length look like this because we can see that like ch3 oh then carbonate ion co3 -2 minus then we can see co2 and then finally co.

03:18 So ch3 oh is the basically longest co bone length and in case of co is the shortest shortest co bone length.

03:37 So now we can see that the ch3 -o -h then carbonate ion co3 -2 minus then co2 and then finally co.

03:47 So this co, ch3 ohh is the is the weakest co bond.

03:56 It's the weakest co bond and in case of this co is the strongest, it is the strongest co bond.

04:09 So it can make strongest co bond.

04:15 So now we can explain all these things.

04:18 So see that in this structure that is ch3 -o -h.

04:21 So basically it has a single bond.

04:25 So that means it has the longest bone length, which is clearly show...

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