Page 34 - 1977 Wardlaw Hartridge School

. Using Tables 20-1 and 20 2, name these organic impounds (a) CH3Br, (b) C2H5CI, (c) CH30H.
2. Write the molecular formula for (a) methyl ioc*1' • W propyl bromide, (c) butyl alcohol.
TABLE 20-2
i-ALKANES AND ALKYL RADICALS
isobutane
Structural formulas (a) and (b) represent different compound which actually exist and have different properties. These two com pounds are isom ers. Structures (c) and (d) are identical to (a). Tht is because there is freedom of movement about the single bond
Robert A. Gould
Houghton College, B.A. Texas A&M University, M S.
Ethel W. Bart
Barnard College, B.A.
New York University, M.A.
James A. Wise
Simpson College, B.A. Fairleigh Dickinson University
Robert B. Vietor Rutgers University, B.S.
Ralph J. Muoio
Rutgers University, B.S. Trenton State College, M.A.
w—
-3 Butane and isobutane are structural iso so that (c) and (d) can be transformed into (a) by simple rotatiol ;rs. Their formulas are the same, but the spatial of atoms. Four carbon atoms are in a continuous chain in (a), (d angement of their atoms is different. In iso- and (d). Thus, the three formulas are identical representations 0 tane, the central carbon atom is bonded to three the same structure. Structure (b), however, cannot be transforms ler carbon atoms. into (a) unless bonds are completely broken and new ones formed
3m