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Chemistry
What is the Lewis structure of C3H5+ ion?
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[QUOTE="cheltzel, post: 5667273, member: 613528"] Sextet? A hexavalent carbon? Unheard of! C3H5+ is the propene carbonium ion. It is formed (briefly) because it has two resonance forms, delocalizing the positive charge across the molecule. 1. Simplify your Lewis method: 3C x 4 v.e. = 12 count your v.e.'s 5H x 1 v.e. = 5 positive charge so subtract 1 electron [U] -`1[/U] 16 valence electrons to work with = 8 electron pairs 2. Using electron pairs, first, connect the atoms, then disperse the remaining electrons so that the octet rule is obeyed (if possible); use double and/or triple bonds as needed. You can have lone pairs of electrons on O, S, N, P etc. H2C=CH-CH2 (I cannot make this program format the molecules properly; there should be a p .....⊕ positve charge on the right side carbon atom.) if there is a charge, place it on the least electronegative atom - in this case carbon, for the reason just mentioned, and because two resonance forms are possible, stabilizing the molecule: H2C-CH=CH2 ↔ H2C=CH-CH2 ...⊕.......⊕ these two ⊕ should be spread between the two ends. Get an organic chem book and look up RESONANCE [/QUOTE]
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What is the Lewis structure of C3H5+ ion?
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