Test 1 Flashcards
What kind of group is shown here
Alkyl group
What kind of group is shown here?
Aromatic group
What kind of group is shown here?
Hydroxyl group
What kind of group is shown here?
Phenol
What kind of group is shown here?
Ether
What kind of group is shown here?
Ester
Is an alkyl group hydrophobic or hydrophilic?
Hydrophobic
(just a group of carbons)
Is an aromatic group hydrophilic or hydrophobic?
Hydrophobic
(a ring of C’s with alternating double bonds)
What makes a hydroxyl group hydrophilic?
The ability of the OH dipole to create a dipole dipole bond with WATER
Is a phenol hydrophobic or hydrophilic?
Hydrophilic
(an aromatic ring and an OH group that creates a dipole)
Why is an ether only weakly hydrophilic?
Because it has a dipole between the O and C but no OH group so it can not donate an H bond
Is an ester hydrophobic or hydrophilic?
Hydrophilic due to the resonance of the two O’s and the double bond
What are the boding capabilities of alkyl groups?
Vander Waals
What are the bonding capabilities of aromatic groups?
Vander Waals but specifically pi-pi stacking
What are the bonding capabilities of a hydroxyl group?
Dipole-dipole (hydrogen bonding)
Ion-dipole
What are the bonding capabilities of phenols?
Dipole-dipole
Hydrogen bonding
Pi-pi stacking (vander waals)
What are the bonding capabilities of an ether?
H bonding
Vander waals
What are the bonding capabilities of an ester?
H bonding
Van der Waals
Is an alkyl group an h bond acceptor or donator?
Neither
What is the pKa of alkyl group?
None
Is a hydroxyl group an h bond acceptor or donator?
Both but has no pKa or acidic properties
What is the pKa of a phenol?
9-10 (pKa is brought down due to the resonance of double bonds)
Is phenol an H bond acceptor or donator?
Both (weak acid)
Is an ether a h bond acceptor or donator?
Acceptor only
Does not have an H on the O
Is an ester an H bond acceptor or donator?
Acceptor only
What functional group is shown here?
Carboxylic acid
What functional group is shown here?
Aromatic ether
What bonding capabilities does a carboxylic acid have?
H bonding
Ion dipole
Is a carboxylic acid an H bond donor or acceptor
Both
What is the pKa of a carboxylic acid?
2-5
Is an aromatic ether acidic basic or neither?
Neither
Is an aromatic ether an H bond acceptor or donor?
Acceptor
What bonding capabilities does an aromatic ether have?
H bonding
Pi pi stacking
What functional group is shown here?
Aromatic ester
What functional group is shown here?
Sulfhydryl/ thiol
What functional group is shown here?
Thioether
What functional group is shown here?
Sulfonamide
What functional group is shown here?
Sulfonylurea
What functional group is shown here?
Alkyl amine
What functional group is shown here?
Aromatic amine
What functional group is shown here?
Aromatic heterocycle
Pyrrole
Is a carboxylic acid hydrophilic or phobic?
Hydrophilic
Is a thiol hydrophilic or phobic?
Hydrophilic
What bonding capabilities do aromatic esters have?
Pi pi stacking
H bonding
What are the bonding capabilities of a thiol?
H bonding
Is a thiol an h bond acceptor or donor
Both
Is a thiol acidic or basic and what is the pKa
Mildly acidic
10-11
Is a thioether hydrophilic or hydrophobic?
Hydrophilic
What are the bonding capabilities of a thioether?
H bonding
Vander Waals
Is a thioether an h bond acceptor or donor?
Acceptor
Is a thioether acidic or basic?
Neither
Is a sulfonamide hydrophilic or hydrophobic?
Hydrophilic
What bonding capabilities does sulfonamide have?
H bonding
Ion dipole