The epoxyserinones represent some of th efirst compounds discovered from fungi c
ID: 791637 • Letter: T
Question
The epoxyserinones represent some of th efirst compounds discovered from fungi cultured from deep-ocean sediment collections. What is the hybridization of the atom labeled A?
What is the formal charge of the atom labeled B?
What is the magnitude of the bond angle labeled C?
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The epoxyserinones represent some of th efirst compounds discovered from fungi cultured from deep-ocean sediment collections. What is the hybridization of the atom labeled A? What is the formal charge of the atom labeled B? What is the magnitude of the bond angle labeled C?Explanation / Answer
A; sp2-hybridized
(note: that carbon is in a C=C double bond thus it is sp2-hybridized.
rules:
the carbon in C-C single bond is sp3-hybridized;
the carbon in C=C double bond is sp2-hybridized.
the carbon in C(triple bond)C is sp-hybridized.
B: formal charge = -1 (formal charge = number of valence electrons (for O it is 6) - number of non-bonding electrons (6 in this case, you can see 6 dots, each one represents one non-bonding electron) - number of chemical bond (one O-C bond) = 6 -6 -1 = -1
C: 109.5 degree (note: there is a hydrogen on this carbon, thus it is bound to four atoms. thus it is sp3-hybridized. the bond angle for sp3 is 109.5. for sp2 is 120 for sp it is 180 degree.)
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