Lewis Structure Help: CH3NCO Bonding Scheme

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SUMMARY

The discussion focuses on the Lewis structure and bonding scheme for CH3NCO, also known as methyl isocyanate. The proposed structure includes a linear arrangement of atoms: O=C=C-N-H, with formal charges calculated as 0 for oxygen, carbon, and nitrogen, and 1 for each hydrogen. A suggestion is made that the correct compound might be methyl cyanate (CH3OCN), which has a different bonding arrangement. The conversation highlights the importance of accurately representing molecular structures in chemistry.

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  • Understanding of Lewis structures and formal charges
  • Familiarity with molecular geometry and bonding schemes
  • Knowledge of organic chemistry nomenclature
  • Basic skills in chemical notation and representation
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  • Research the Lewis structure of methyl cyanate (CH3OCN)
  • Study the properties and applications of methyl isocyanate (CH3NCO)
  • Learn about resonance structures and their significance in molecular stability
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Rasine
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i am attempting to figure out the lewis structure/ bonding scheme for CH3NCO.

so far i have: O=C=C-N-H
l l
H H
the Hs are attached to the second C then the N

the formal charges seem to be ok

i have a formal charge of 0 for O, C, N
i have a formal charge of 1 for all the H

what do you think?
 
Last edited:
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Your methyl group (CH3) should be together.
 
Rasine said:
i am attempting to figure out the lewis structure/ bonding scheme for CH3NCO.

so far i have: O=C=C-N-H
l l
H H
the Hs are attached to the second C then the N

the formal charges seem to be ok

i have a formal charge of 0 for O, C, N
i have a formal charge of 1 for all the H

what do you think?

Perhaps you are referring to methyl cyanate (CH3OCN) ?
{\text{H}}\mathop {\text{C}} \limits_{\text{H}}^{\text{H}} {- \text{O}} - {\text{C}} \equiv {\text{N}}

Otherwise, as written, "CH3NCO" refers to
{\text{H}}\mathop {\text{C}}\limits_{\text{H}}^{\text{H}} - {\text{N}} = {\text{C}} = {\text{O}}

(*:smile: perhaps we should implement a \LaTeX for molecular structures?)
 
Last edited:

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