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Topic: Functional Grp # 1: Halocarbons

Topic: Functional Grp # 1: Halocarbons. Do Now: Where on the periodic table would you find the Halogens? Name them. aka – Alkyl Halides, Organic Halides. One (or more) hydrogen atoms in alkane is replaced with halogen atom (F, Cl , Br, or I). propane. General Formula halocarbons: R-X

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Topic: Functional Grp # 1: Halocarbons

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  1. Topic: Functional Grp # 1: Halocarbons Do Now: Where on the periodic table would you find the Halogens? Name them

  2. aka – Alkyl Halides, Organic Halides • One (or more) hydrogen atoms in alkane is replaced with halogen atom (F, Cl, Br, or I) propane

  3. General Formula halocarbons: R-X • R = hydrocarbon part of molecule • X represents halogen (F, Cl, Br, or I)

  4. Boiling Point (C) Density (g/ml) CH3CH2CH2CH2CH3 pentane 36 0.626 CH3CH2CH2CH2CH2F 1-fluoropentane 63 0.791 CH3CH2CH2CH2CH2Cl 1-chloropentane 108 0.882 CH3CH2CH2CH2CH2Br 1-bromopentane 130 1.218 CH3CH2CH2CH2CH2I 1-iodopentane 155 1.516 Properties • Adding a halide increases IMF • Higher BP/MP • The larger the halide the stronger the IMF • I>Br>Cl>F

  5. Naming • figure out backbone name • prefixes specify substituent: fluoro, chloro, bromo, iodo • use di, tri, tetra • if more than one same thing • tell location(s) of halogen(s) • state # C attached to in backbone

  6.  C3H7F CH3ClCH3CHFCH3 H H–C–Cl H 2-fluoropropane chloromethane

  7. CH3CCl2CHClCH3 C4H7Cl3 Naming Halides 2,2,3-trichlorobutane

  8. 2-chloro-4-fluoro-3-iodobutane If more then one kind of Halogen, name them alphabetically Chlorine 1stalphabetically gets lowest number 4 3 2 1

  9. Br CH3CH2CHCHCH3 I 3-bromo 2-iodopentane F Cl HCCH F Cl 1,1-dichloro-2,2-difluoromethane Name:

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