Naming Saturated Hydrocarbons Aliphatic Straight and Branched Alkanes.
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Transcript of Naming Saturated Hydrocarbons Aliphatic Straight and Branched Alkanes.
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Naming Saturated HydrocarbonsNaming Saturated HydrocarbonsAliphaticAliphatic
Straight and Branched AlkanesStraight and Branched Alkanes
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AlkanesAlkanesAt the conclusion of our time At the conclusion of our time
together, you should be able to:together, you should be able to:
1. Define an alkane2. Name, write and draw various alkanes using
the IUPAC naming rules
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Familiar SayingsFamiliar Sayings
The individual of the class aves, arriving before the appointed time, seizes the
invertebrate animal of the group vermes.
The early bird catches the worm!
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What are Alkanes?What are Alkanes?
Saturated hydrocarbonsCan be straight or with branchesThe general formula for each alkane is: (CnH2n+2)
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Materials in Your KitMaterials in Your Kit
Make certain your kit contains the following in the right Make certain your kit contains the following in the right location. If it does not, the previous user will be marked location. If it does not, the previous user will be marked at least 1 point off their next assignment grade each day at least 1 point off their next assignment grade each day there is a problem. You are to work with the kit assigned there is a problem. You are to work with the kit assigned to your lab drawer.to your lab drawer.
10 black spheres -10 black spheres - carbon \ small sidecarbon \ small side 2 blue spheres - 2 blue spheres - nitrogen /nitrogen /28 yellow spheres -28 yellow spheres - hydrogen \hydrogen \6 red spheres - 6 red spheres - oxygen \oxygen \4 green spheres - 4 green spheres - chlorine \ large sidechlorine \ large side2 orange spheres -2 orange spheres - bromine /bromine /
or fluorine /or fluorine / (all colors (all colors 2 purple spheres -2 purple spheres - iodine /iodine / together)together)
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Materials in Your KitMaterials in Your Kit
30 small wooden pegs -30 small wooden pegs - H bonds only \H bonds only \10 large wooden pegs - 10 large wooden pegs - other single bonds \ other single bonds \ 9 metal springs -9 metal springs - double or triple bonds / double or triple bonds /
or stress bonds /or stress bonds /
Place all of these materials in the center section of your kit.
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GradingGrading
The first student lab team that has the structure The first student lab team that has the structure correct will be initialed by me and receive an correct will be initialed by me and receive an extra one-half point. These students will then extra one-half point. These students will then have their names placed on the board and will have their names placed on the board and will be teaching assistants for that organic structure. be teaching assistants for that organic structure. They will be responsible to grade and initial the They will be responsible to grade and initial the structures of other lab teams. structures of other lab teams. Each structure that is designed and named by Each structure that is designed and named by you is worth 0.5 points. you is worth 0.5 points. It is best if you put your It is best if you put your constructionsconstructions in the in the box lidbox lid to carry to the instructor or the teaching to carry to the instructor or the teaching assistant for that structure. The following is the assistant for that structure. The following is the grading criteria:grading criteria:
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GradingGrading
1 point 1 point = graded by the instructor and perfect, = graded by the instructor and perfect, this team assists in grading, may have one 1 point grade this team assists in grading, may have one 1 point grade and assist with only one structure (RWT with a + )and assist with only one structure (RWT with a + )0.5 points 0.5 points = other perfect scores = other perfect scores (RWT or other initials of student assistants) (RWT or other initials of student assistants) 0.5 points0.5 points = (assistants can only give this)= (assistants can only give this)0 points 0 points = wrong pegs were used = wrong pegs were used
(RWT or other initials of student assistants)(RWT or other initials of student assistants)0 points 0 points = 1 mistake in the structure or wrong = 1 mistake in the structure or wrong name (RWT or other initials of student assistants)name (RWT or other initials of student assistants)
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Calvin’s Thoughts on the Season:Calvin’s Thoughts on the Season:
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Some Simple Alkanes Some Simple Alkanes
(C(CnnHH2n+22n+2))
2-methyl-propane
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CycloalkanesCycloalkanes
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AlkanesAlkanesLet’s see if you can:Let’s see if you can:
1. Define an alkane2. Name, write and draw various alkanes using
the IUPAC naming rules
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What are Alkanes?What are Alkanes?
Saturated hydrocarbonsCan be straight or with branchesThe general formula for each alkane is: (CnH2n+2)
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Let’s Try Naming Some Models?Let’s Try Naming Some Models?
Let’s see if you can build some models yourself??
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GradingGrading
1 point 1 point = graded by the instructor and perfect, = graded by the instructor and perfect, this team assists in grading, may have one 1 point grade this team assists in grading, may have one 1 point grade and assist with only one structure (RWT with a + )and assist with only one structure (RWT with a + )0.5 points 0.5 points = other perfect scores = other perfect scores (RWT or other initials of student assistants) (RWT or other initials of student assistants) 0.5 points0.5 points = (assistants can only give this)= (assistants can only give this)0 points 0 points = wrong pegs were used = wrong pegs were used
(RWT or other initials of student assistants)(RWT or other initials of student assistants)0 points 0 points = 1 mistake in the structure or wrong = 1 mistake in the structure or wrong name (RWT or other initials of student assistants)name (RWT or other initials of student assistants)
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AlkanesAlkanesAt the conclusion of our time At the conclusion of our time
together, you should be able to:together, you should be able to:
1. Define an alkane2. Name, write and draw various alkanes using
the IUPAC naming rules
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The IUPAC RulesThe IUPAC Rules
1.1. Find the longest carbon chain and name that Find the longest carbon chain and name that chainchain
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Example:
CH3-CH-CH3
|
CH3
propane
C-C-C | C
Skeletal Structure
CondensedStructure
Complete Structure
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The IUPAC RulesThe IUPAC Rules
1.1. Find the longest carbon chain and name that Find the longest carbon chain and name that chainchain
2.2. Number the chain so the substituent groups Number the chain so the substituent groups have the lowest total position numbershave the lowest total position numbers
3.3. Give alkyl groups attached to the longest chain Give alkyl groups attached to the longest chain a a name and a numbername and a number
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Name Side Chains as Alkyl GroupsName Side Chains as Alkyl Groups
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Examples:
CH3-CH-CH3
|
CH3
2-methylpropane
C-C-C | C
Skeletal Structure
CondensedStructure
Complete Structure
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A.P. TEST IN MUSICA.P. TEST IN MUSIC
Write a piano concerto. Orchestrate and Write a piano concerto. Orchestrate and perform it with flute and drum. You may perform it with flute and drum. You may use the flute that you received in third use the flute that you received in third grade.grade.
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The IUPAC RulesThe IUPAC Rules
1.1. Find the longest carbon chain and name that Find the longest carbon chain and name that chainchain
2.2. Number the chain so the substituent groups Number the chain so the substituent groups have the lowest total position numbershave the lowest total position numbers
3.3. Give alkyl groups attached to the longest chain Give alkyl groups attached to the longest chain a a name and a numbername and a number
4.4. Multiple alkyl groups are named alphabeticallyMultiple alkyl groups are named alphabetically5.5. Multiple groups that are the same: Multiple groups that are the same: didi(2), (2), tritri(3), (3),
tetratetra(4), (4), pentapenta(5), (5), hexahexa((6)6)6.6. Halogen substituent groups are named “halo” Halogen substituent groups are named “halo”
groups – fluoro, chloro, bromo, iodogroups – fluoro, chloro, bromo, iodo7.7. Put “,” between numbers, “-” between numbers Put “,” between numbers, “-” between numbers
and lettersand letters
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Find The Longest ChainFind The Longest Chain
Not pentane!!
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Number the Longest Chain so the Substituents have the Lowest Numbers
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Examples:
CH3-CH2-CH-CH2-CH2-CH2-
CH3
| CH3-CH2
CH3-CH-CH2-CH2-CH2-CH2-CH-CH2-CH3
| | CH3 CH3
3-ethylheptane
2,7-dimethylnonane
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7th Grade Science Answers7th Grade Science Answers
"Mushrooms always grow in damp places and so they look like umbrellas."
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Examples:
CH3--CH--CH2---C---CH--CH2--CH2--CH3
| CH3-CH2
4-ethyl-2,4,5-trimethyloctane
CH3 CH3 CH3
| | |
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Examples:
CH3-----C-----C-----C-----C-----CH3
| | | | CH3 CH2 CH2 CH3
| |
CH3 CH3
3,3,4,4-tetraethyl-2,2,5,5-tetramethylhexane
CH3 CH3
| | CH3 CH2 CH2 CH3
| | | |
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AlkanesAlkanesLet’s see if you can:Let’s see if you can:
1. Define an alkane2. Name, write and draw various alkanes using
the IUPAC naming rules
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The The nn-Alkanes-Alkanes
CH4
C2H6
C3H8
C4H10
C5H12
C6H14
C7H16
C8H18
C9H20
C10H22
methane
ethane
propane
butane
pentane
hexane
heptane
octane
nonane
decane
C11H24 undecane
C12H26 dodecane
C13H28 tridecane
C14H30 tetradecane
C15H32 pentadecane
home heating
alcohol production
gas grills
flick your bic
dry cleaners 5-6
gasoline 7-9
kerosene ~ 12
motor oil ~ 16
petroleum jelly 20
tar ~ 25
wax ~ 40
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Give the IUPAC Nomenclature for the Give the IUPAC Nomenclature for the Following:Following:
2-methylpentane
3-ethyl-2-methylpentane
2,2,4-trimethylpentane
All are “pentanes”All are “pentanes”
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Try Naming this One:
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Another Why - Maxine
Why isn't the number 11 pronounced onety-one?
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The IUPAC RulesThe IUPAC Rules
1.1. Find the longest carbon chain and name that Find the longest carbon chain and name that chainchain
2.2. Number the chain so the substituent groups Number the chain so the substituent groups have the lowest total position numbershave the lowest total position numbers
3.3. Give alkyl groups attached to the longest chain Give alkyl groups attached to the longest chain a a name and a numbername and a number
4.4. Multiple alkyl groups are named alphabeticallyMultiple alkyl groups are named alphabetically5.5. Multiple groups that are the same: Multiple groups that are the same: didi(2), (2), tritri(3), (3),
tetratetra(4), (4), pentapenta(5), (5), hexahexa((6)6)6.6. Halogen substituent groups are named “halo” Halogen substituent groups are named “halo”
groups – fluoro, chloro, bromo, iodogroups – fluoro, chloro, bromo, iodo7.7. Put “,” between numbers, “-” between numbers Put “,” between numbers, “-” between numbers
and lettersand letters
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Naming Saturated HydrocarbonsNaming Saturated HydrocarbonsAliphaticAliphatic
Branched AlkanesBranched AlkanesIsomersIsomers
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Isomers of AlkanesIsomers of AlkanesAt the conclusion of our time At the conclusion of our time
together, you should be able to:together, you should be able to:
1. Define an isomer2. Name, write and draw various isomers of
alkanes using the IUPAC naming rules
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Definition:Definition:
Isomers are organic compounds that have Isomers are organic compounds that have the same formula but different structure.the same formula but different structure.These structures will have completely These structures will have completely different properties.different properties.
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Examples of Isomers of Butane:
All Compounds are C4H10
CH3-CH-CH3
|
CH3
2-methylpropaneCH3-CH2-CH2-CH3
1,1-dimethylethane
butane
CH3
|CH3-CH
|
CH3
2-methylpropane
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Familiar Sayings
Compute not your immature gallinaceans prior to their being produced.
Don’t count your chickens before they’re hatched!!
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Examples of Isomers of Pentane:
All Compounds are C5H12
CH3-CH-CH2-CH3
| CH3
2-methylbutaneCH3-CH2-CH2-CH2-CH3
2,2-dimethylpropane
pentane
CH3
|CH3-C-CH3
|
CH3
What about 3-methylbutane?
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Bill Gates' RulesHere is a list of 11 things that many high school and college graduates did not learn in school. In
his book, Bill Gates talks about how feel-good, politically-correct teachings created a full
generation of kids with no concept of reality and how this concept has set them up for failure in the
real world.
RULE 11
Be nice to nerds. Chances are you'll end up working for one.
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Isomers of AlkanesIsomers of AlkanesLet’s see if you can:Let’s see if you can:
1. Define an isomer2. Name, write and draw various isomers of
alkanes using the IUPAC naming rules
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Give the IUPAC Nomenclature for the Give the IUPAC Nomenclature for the Following:Following:
2-methylpentane
3-ethyl-2-methylpentane
2,2,4-trimethylpentane
All are “pentanes”All are “pentanes”
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