82. The molecule shown here, 2-furylmethanethiol, is responsible for aroma of co

Question

82. The molecule shown here, 2-furylmethanethiol, is responsible for aroma of coffee.

a) What are the formal charges on the S and O atoms?

b) Give approximate values of angles 1, 2, and 3.

c) Which are the shorter carbon-carbon bonds in the molecule?

d) Which bond in this molecule is the most polar?

e) Is the mole polar or non-polar?

f) The molecular model makes it clear that the four C atoms of the ring are all in a plane. Is the O atom in that same plane ( making the five-member ring planar), or is the O atom bent above or below the plane?

Explanation / Answer

a)formal charge on S = 6 - 4 - 4 = -2 formal charge on O = 6-4-4 = -2 b) c)shortest bond will be between one C connected to S and other C connected to O d)between S and H e)mole is unit of amount of substance f)O atom will be in same plane

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