line-angle

line-angle - Thus, each carbon atom in benzene has three...

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Drawing Organic Structures By Using Line-Angle Formula When chemists draw the structure of an organic molecule, an abbreviated representation is often used. For example, the Lewis structure and the line-angle formula for benzene (C 6 H 6 ) are shown below. In the line-angle formula, each “stick” represents a covalent bond between two atoms. A pair of parallel “sticks” represents a double bond between the two connected atoms. When two, three or four “sticks” intersect, and there is no atomic symbol specified at the intersection, a carbon atom is assumed (i.e., the atomic symbol, “C”, is not written in the line-angle formula).
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Unformatted text preview: Thus, each carbon atom in benzene has three covalent bonds to other carbon atoms (i.e., each carbon atom forms one double bond and one single bond to two other carbon atoms). Finally, each carbon atom in an organic molecule is almost always covalently bound to four other atoms. For brevity, any covalent bonds between carbon atoms and hydrogen atoms are omitted in the line-angle formula. Because each carbon atom must have four covalent bonds, there must be one carbon-hydrogen (C-H) bond on each carbon atom in benzene. C C C C C C H H H H H H line-angle formula Lewis structure...
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This note was uploaded on 04/23/2011 for the course CHEM 255 taught by Professor Chemolski during the Spring '10 term at Purdue.

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