Compounds condensed structural formula

Compound Condensed Structural Formula Number of Carbon Atoms Solubility in Water... 

Hydrogen bonds can exist in many molecules other than HF, H20, and NH3. The basic requirement is simply that hydrogen be bonded to a fluorine, oxygen, or nitrogen atom with at least one unshared pair. Consider, for example, the two compounds whose condensed structural formulas are... 

Self-Test 18.8B Write the condensed structural formula of the compound formed by the addition of hydrogen chloride to 2-butene. 

Several kinds of formulas are used by organic chemists to represent organic compounds. Some of these formulas involve a shorthand notation that requires some explanation. Structural formulas actually show which atoms are bonded to which. There are two types of structural formulas, complete Lewis structures and condensed structural formulas. In addition, there are several ways of drawing condensed structural formulas. As we have seen, a Lewis structure symbolizes a bonding pair of electrons as a pair of dots or as a dash (—). Lone pairs of electrons are shown as pairs of dots. 

Compound Lewis Structure Condensed Structural Formula... 

When a condensed structural formula is written for a compound containing double or triple bonds, the multiple bonds are often drawn as they would be in a Lewis structure. Table 1-3 shows examples of condensed structural formulas containing multiple bonds. Notice that the —CHO group of an aldehyde and the —COOH group of a carboxylic acid are actually bonded differently from what the condensed notation suggests. Condensed structures are assumed to follow the octet rule even if the condensed notation does not show the bonding. 

Name the compound represented by each of the following condensed structural formulas. 

The condensed structural formula for methylpropane is CH3CH(CH3)CH3 or (CH3)3CH because the methyl groups are equivalent. The first formula is the one chosen to name the compound (methylpropane not trimethylmethane). 

Write the condensed structural formula for each of the following compounds. 

Draw condensed structural formulas for the following compounds. Use line structures for rings. 

Ans. Each of these structural formulas represents the same compound—the same compound as in the Problem 11.4. The three formulas differ in the extent to which various bonds in the molecule are drawn. Formula III is referred to as a full or expanded structural formula in contrast to more condensed structural formulas such as formulas I and II. Formulas I and II are condensed to different degrees. Formula I shows no bonds while formula II shows all carbon-carbon bonds but no carbon-hydrogen bonds. 

Analyze We are given the condensed structural formulas for an alkene and an alkyne and asked to name the compounds. 

Write the condensed structural formula for each of the following compounds (a) 2-pentanol, (b) 1,2-propanediol, (c) ethyl acetate, (d) diphenyl ketone, (e) methyl ethyl ether. 

In Table 1.2, we have used both expanded and condensed structural formulas for the compounds. Expanded structural formulas show all covalent bonds, whereas condensed structural formulas show only specific bonds. You should become familiar with both types, but especially with condensed formulas because they will be used often. 

Write a condensed structural formula for the following compounds Conformations of Alkanes (Section 1.6)... 

Draw the condensed structural formulas for the following compounds (a) 2-methylpentane, (b) 3-methylpentane, (c) 2,2-dimethylbutane, and (d) 2,3-dimethylbutane. 

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