Alkynes

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Step 4

ALKYNES

Fun Facts

Structure of an Alkyne

Examples

Physical Properties

Naming Rules

• Alkynes were first discovered by Irish chemist Edmund Davy
• Alkynes are found in: Histrionicotoxin (used by frogs as protection)
• Its also found in birth control pills in the ingredients Norethindrone and Ethinylesteradiol

• The suffix is "yne"
• Number the chain of carbons that contain the triple bond so that it has the lowest position possible
• Both double and triple bonds are considered priority and the one closest to the end determines the direction of counting
• If both bonds have the same position number, the double bond should come first
• Subsituents are added to the name as prefixes
• High priority substituents are located on the same or opposite sides of the bond
• If the compound is cyclic, the information is noted and the term "cyclo" is added
• Designate geometrical isomers with cis, trans or E, Z prefixes
• An "e" is dropped if the following letter is a vowel and an "a" is added if inclusion of di, tri, etc. results to cononants consecutively

• Generally odourless
• Melting and Boiling Point: COMPARED TO ALKENES AND ALKANES THEY HAVE SLIGHTLY HIGHER BOILING POINTS
• Polarity: NON POLAR
• Solubility: DISSOLVE IN ORGANIC SOLVENTS,SLIGHT SOLUBILITY IN POLAR SOLVENTS AND DO NOT DISSOLVE IN WATER
• Density: LESS DENSE THAN WATER

PICTUREs

RESOURCES

Done By: Neecee Humes, Jamie Good and Ashly Herera

+ info

Duis autem vel eum irem dolor in hendrerit

+ info

Ullamcorper suscipit lobortis nisl ut aliquip

Step 4

ALKYNES

Fun Facts

Structure of an Alkyne

Examples

Physical Properties

Naming Rules

• Alkynes were first discovered by Irish chemist Edmund Davy
• Alkynes are found in: Histrionicotoxin (used by frogs as protection)
• Its also found in birth control pills in the ingredients Norethindrone and Ethinylesteradiol

• The suffix is "yne"
• Number the chain of carbons that contain the triple bond so that it has the lowest position possible
• Both double and triple bonds are considered priority and the one closest to the end determines the direction of counting
• If both bonds have the same position number, the double bond should come first
• Subsituents are added to the name as prefixes
• High priority substituents are located on the same or opposite sides of the bond
• If the compound is cyclic, the information is noted and the term "cyclo" is added
• Designate geometrical isomers with cis, trans or E, Z prefixes
• An "e" is dropped if the following letter is a vowel and an "a" is added if inclusion of di, tri, etc. results to cononants consecutively

• Generally odourless
• Melting and Boiling Point: COMPARED TO ALKENES AND ALKANES THEY HAVE SLIGHTLY HIGHER BOILING POINTS
• Polarity: NON POLAR
• Solubility: DISSOLVE IN ORGANIC SOLVENTS,SLIGHT SOLUBILITY IN POLAR SOLVENTS AND DO NOT DISSOLVE IN WATER
• Density: LESS DENSE THAN WATER

PICTUREs

RESOURCES

Done By: Neecee Humes, Jamie Good and Ashly Herera

+ info

Duis autem vel eum irem dolor in hendrerit

+ info

Ullamcorper suscipit lobortis nisl ut aliquip

Step 4

ALKYNESneee

Fun Facts

Structure of an Alkyne

Examples

Physical Properties

Naming Rules

• Alkynes were first discovered by Irish chemist Edmund Davy
• Alkynes are found in: Histrionicotoxin (used by frogs as protection)
• Its also found in birth control pills in the ingredients Norethindrone and Ethinylesteradiol

• The suffix is "yne"
• Number the chain of carbons that contain the triple bond so that it has the lowest position possible
• Both double and triple bonds are considered priority and the one closest to the end determines the direction of counting
• If both bonds have the same position number, the double bond should come first
• Subsituents are added to the name as prefixes
• High priority substituents are located on the same or opposite sides of the bond
• If the compound is cyclic, the information is noted and the term "cyclo" is added
• Designate geometrical isomers with cis, trans or E, Z prefixes
• An "e" is dropped if the following letter is a vowel and an "a" is added if inclusion of di, tri, etc. results to cononants consecutively

• Generally odourless
• Melting and Boiling Point: COMPARED TO ALKENES AND ALKANES THEY HAVE SLIGHTLY HIGHER BOILING POINTS
• Polarity: NON POLAR
• Solubility: DISSOLVE IN ORGANIC SOLVENTS,SLIGHT SOLUBILITY IN POLAR SOLVENTS AND DO NOT DISSOLVE IN WATER
• Density: LESS DENSE THAN WATER

PICTUREs

RESOURCES

Done By: Neecee Humes, Jamie Good and Ashly Herera

+ info