Chem233 Outline of Last Lecture I. 5 classes of compoundsII. alkyl substituentIII. rules of alkanes IV. cycloalkanesOutline of Current Lecture I. Alkyl HalidesII. EthersIII. AlcoholsIV. Naming more compoundsV. AminesVI. IMF’sCurrent LectureI. Alkyl Halides- also known as haloalkanes. They are compounds in which an Hof an alkane has been replaced by a halogen (R-X). Prefixes end with an “O” (fluoro, chloro, bromo, iodo)II. Ethers- A compound in which oxygen is bonded to two alkyl substituents (R-O-R’). Ether substituents are named by replacing the “yl” ending in the nameof the alkyl substituent with “oxyl”. (EX: methyl -> methoxy)III. Alcohols- A compound in which an H of an alkane has been replaced by an OH group (R-OH). IUPAC naming of alcohols use suffixes. The “e” at the end of the name of the parent hydrocarbon is replaced with the suffix “ol”. (EX: ethane -> ethanol)IV. Naming more compounds (specifically compounds containing a functional group suffix). The parent chain is the longest continuous chain containing thefunctional group. The parent chain is numbered in the direction that gives the functional group the lowest umber possible. If there is an OH grouppresent as well as a substituent, the functional group suffix gets the lowest possible number. The OH must be the lowest regardless if it makes the other substituents higher. If counting in either direction gives the same number for the functional group suffix, the chain is numbered so as to give the substituent the lowest number possible. If you have more than one substituent they are cited in ABC order. When naming alcohols, remember the formula, [substituent][parent hydrocarbon][functional group suffix].EX: CH3CH2CH-OH-CH2CH2CH-CH3-CH3 Name: 6-methyl-3-heptanolV. A compound in which one or more H of ammonia have been replaced by alkylgroups (R-NH2). IUPAC naming replaces “e” at the end of the parent chain with “amine” EX: butane ->butanamineVI. IMF’s- happens between different molecules. Ionic compounds have very strong ion-ion interactions. Covalent compounds have 3 types of interactions…1. Van der waal forces- caused by weak interactions of temporary dipoles. 2. Dipole-dipole interactions- attraction between polar molecules. 3. Hydrogen bonding- occurs between an H bonded to O, N, or anF atom and a lone pair of electrons on O, N, or F of different molecule. Strongest to weakest = ion-ion> H bonding> dipole-dipole> van der