ࡱ> 4(V U/ 0DTimes New Roman(0(z[ 0 DArialNew Roman(0(z[ 0 " DMonotype Sorts(0(z[ 0 @ .  @n?" dd@  @@``  Pi`  A@?>=85321,123=>8@A UX_abs AA1?@8g44d4d@z[ 0 ppp@  Xuʚ;2Nʚ;<4!d!dl|- 0X<4ddddl|- 0Xr0___PPT10 pp2___PPT9/ 0? %:,H Organic compounds and Nomenclature Y\Root of the name  ~This depends on the number of carbon atoms in the longest unbroken chain. 1 carbon chain & . Meth- 2 carbon chain & . Eth- 3 carbon chain & . Prop- 4 carbon chain & . But- 5 carbon chain & . Pent-Jv&\  ` Z]The  default   This is a hydrocarbon that contains only single bonds. It has the suffix (ending)  ane Example A three carbon chain with only carbons, hydrogens and single bonds is called propane. CH3CH2CH3^WjWZ&S  k [^ Unsaturation   If a molecule contains double or triple bonds it is said to be unsaturated (meaning that it would be possible to fit in more hydrogens if the double bonds were changed to single). Chains with one double bond take the suffix -ene. Example: ethene CH2=CH2 Chains with one triple bond take the suffix  yne. Example: Ethyne CHCHDI? "Z  .    Functional GroupsMost organic chemistry involves substituents often contain O, N, S, or P also called  functional groups - they are the chemically functional part of the molecule, and are the non-hydrocarbon partZ--()$$H$$$ Functional GroupsFunctional group - a specific arrangement of atoms in an organic compound, that is capable of characteristic chemical reactions. What is the best way to classify organic compounds? By their functional groups.PZQZ(p($5$( Functional Groups:The symbol  R is used to represent any carbon chains or rings These are called alkyl groups CH3 - methyl group CH3CH2 - ethyl group CH3CH2CH2 - propyl group?( $ $$ $$ $$ $$ $$ $$ Halogen Substituents Halocarbons - class of organic compounds containing covalently bonded fluorine, chlorine, bromine, or iodine General formula: R-X Naming? Name parent as normal, add the halogen as a substituent (or prefix) -TmO ,b($(O$  Halogen Substituents The more highly halogenated the compound is, the higher the b.p. (see Table 26.3, page 775) Few halocarbons found in nature but, readily prepared and used halothane (Fig. 26.3, p.776) and also the hydrofluorocarbonsV|\ $$$$E$\$  Alcohols and EthersFOBJECTIVES: Describe the structures and naming of alcohols and ethers.f ; $&((((($ AlcoholsLAlcohols - a class of organic compounds with an -OH group The -OH functional group in alcohols is called a  hydroxyl group; thus R-OH is the formula, where  R is an alkyl group How is this different from the hydroxide ion? (covalent bonding with the carbon- not ionic with a metal like bases):ZyZtZ(1($1$ $ $$-$.(E(AlcoholsBoth systematic and common names systematic: drop the -ane ending of the parent alkane name; add ending of -anol, number the position of  OH if needed parent is the longest chain that contains the carbon with the attached hydroxyl.~--" ""1""&""O" >7xAlcoholsThe hydroxyl group is given the lowest position number Alcohols containing 2, 3, and 4 of the -OH substituents are named diols, triols, and tetrols respectively (not needed fro year 10)*y,,',Pb  'AlcoholsCommon names: similar to halogenoalkanes, meaning name the alkyl group root followed by the suffix -anol One carbon alcohol = meth- anol = methanol.ZZ**>d Properties of AlcoholsGlycerol (propan 1,2,3 triol) - used as a moistening agent in cosmetics, foods, and drugs; also a component of fats and oils Ethyl alcohol (ethanol) used in the intoxicating beverages; an important industrial solvent$#EthersA class of organic compounds in which oxygen is bonded to 2 carbon chains: R-O-R is the formula Nomenclature: The larger of the two R groups is the root and the other R group is prefixed as alkoxy- Example: CH3CH2OCH3 methoxyethanex#L $       , *&Alkanals and AlkanonesThe C=O group is called the  carbonyl group it is the functional group in both alkanals and alkanones Alkanals - carbonyl group always joined to at least one hydrogen (meaning it is always at the end!)t-:d$$$:$$H$$$+' AlkanonesmAlkanones - the carbon of the carbonyl group is joined to two other carbons (meaning it is never on the end) 6m[(((,(Alkanals and alkanones Nomenclature Alkanals: identify longest chain containing the carbonyl group, then the -ane ending replaced by -anal, such as methanal, ethanal, etc. Alkanones: longest chain with the carbonyl, then new ending of -anone; number it propanone, 2-pentanone, 3-pentanone ZZ$Z $I$$$$$$$$F$$ $$$$$$$>W-G0'#Aldehydes and KetonesPropanone (common: acetone) is a good solvent; miscible with water in all proportions why is it a good substance used in nail-polish removers? (a powerful solvent-able to dissolve both polar & nonpolar)(($Carboxylic AcidsAlso have a carbonyl group (C=O), but is also attached to a hydroxyl group (-OH) =  carboxyl group general formula: R-COOH weak acids (ionize slightly) Named by replacing -ane with -anoic and followed by the word acid methanoic acid; ethanoic acid|`S$ $$$$$$$$$$$ $$$> /+Carboxylic AcidsAbundant and widely distributed in nature, many having a Greek or Latin word describing their origin acetic acid (ethanoic acid) from acetum, meaning vinegar many that were isolated from fats are called fatty acids*ere$r$P  ` 3f` 33` www` ff33̙>?" dd@,?lKd@   d " @ `  n?" dd@   @@``@n?" dd@  @@``PR    @ ` ` p>> 4, ( R POT  `F DD<   DD<~   N21?DD<~   N21?d~   N21?$x   H1? p  Zgֳgֳ ?P  T Click to edit Master title style! !:  T8gֳgֳ ?  RClick to edit Master text styles Second Level Third Level Fourth Level Fifth Level!     S   `䠣gֳgֳ ?`   @*   `gֳgֳ ?    B*   `,gֳgֳ ?    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What is the best way to classify organic compounds? By their functional groups.LQ(p($5$$ Functional GrDocumentSummaryInformation8Root EntrydO)"Current User)SummaryInformation(TPowerPoint Document(  _gkhgkh՜.+,0    !On-screen Show -sY Times New RomanArialMonotype SortsBluebox%Organic compounds and NomenclatureRoot of the nameoups:The symbol  R is used to represent any carbon chains or rings These are called alkyl groups CH3 - methyl group CH3CH2 - ethyl group CH3CH2CH2 - propyl group?( $ $$ $$ $$ $$ $$ $$ Halogen Substituents Halogenocarbons - class of organic compounds containing covalently bonded fluorine, chlorine, bromine, or iodine General formula: R-X Naming? Name parent as normal, add the halogen as a substituent (or prefix) -TqO$b($$O$ Halogen Substituents The more highly halogenated the compound is (I.e. the more greater the number of halogen atoms), the higher the b.p. Few halogenoalkanes are found in nature& . but, readily prepared and used halothane and also the hydrofluorocarbonsZZIZ   J  5 I ,zM  Alcohols and EthersFOBJECTIVES: Describe the structures and naming of alcohols and ethers.f ; $&((((($ AlcoholsZAlcohols - a class of organic compounds with an -OH group The -OH functional group in alcohols is called a  hydroxyl group; thus R-OH can represent the formula, where  R is an alkyl group How is this different from the hydroxide ion? (covalently bonded to the carbon- not ionically as in hydroxides)v:p 2 1    I p AlcoholsBoth systematic and common names systematic: drop the -ane ending of the parent alkane name; add ending of -anol, number the position of  OH if needed parent is the longest chain that contains the carbon with the attached hydroxyl.~--" ""1""&""O" >7xAlcoholsThe hydroxyl group is given the lowest position number Alcohols containing 2, 3, and 4 of the -OH substituents are named diols, triols, and tetrols respectively (not needed fro year 10)*y,,',Pb  'AlcoholsCommon names: similar to halogenoalkanes, meaning name the alkyl group root followed by the suffix -anol One carbon alcohol = meth- anol = methanol.ZZ**>d Properties of AlcoholsGlycerol (propan 1,2,3 triol) - used as a moistening agent in cosmetics, foods, and drugs; also a component of fats and oils Ethyl alcohol (ethanol) used in the intoxicating beverages; an important industrial solvent$#EthersA class of organic compounds in which oxygen is bonded to 2 carbon chains: R-O-R is the formula Nomenclature: The larger of the two R groups is the root and the other R group is prefixed as alkoxy- Example: CH3CH2OCH3 methoxyethaneh#L$, *&Alkanals and AlkanonesThe C=O group is called the  carbonyl group it is the functional group in both alkanals and alkanones Alkanals - carbonyl group always joined to at least one hydrogen (meaning it is always at the end!)t-:d$$$:$$H$$$+' AlkanonesmAlkanones - the carbon of the carbonyl group is joined to two other carbons (meaning it is never on the end) 6m[(((,(Alkanals and alkanones Nomenclature Alkanals: identify longest chain containing the carbonyl group, then the -ane ending replaced by -anal, such as methanal, ethanal, etc. Alkanones: longest chain with the carbonyl, then new ending of -anone; number it propanone, 2-pentanone, 3-pentanone ZZ$Z $I$$$$$$$$F$$ $$$$$$$>W-G0'#Aldehydes and KetonesPropanone (common: acetone) is a good solvent; miscible with water in all proportions why is it a good substance used in nail-polish removers? 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