Consider the following isomers of [Co(NH 3 ) 4 Br 2 ] + .The black sphere represents Co,gray spheres represent NH 3 ,and unshaded spheres represent Br.
-Which are cis-isomers?
A)isomers (1)and (2)
B)isomers (1)and (3)
C)isomers (2)and (4)
D)isomers (3)and (4)

Question

Consider the following isomers of [Co(NH 3 ) 4 Br 2 ] + .The black sphere represents Co,gray spheres represent NH 3 ,and unshaded spheres represent Br. 
-Which are cis-isomers?
A)isomers (1)and (2) 
B)isomers (1)and (3) 
C)isomers (2)and (4) 
D)isomers (3)and (4)

Quizplus · Accepted Answer

Isomers (1) and (3) are cis-isomers because the Br and the S1U1B0 ligands are on the same side of the Co-NHS1U1B13S1U1B0-NHS1U1B13S1U1B0 plane. In isomers (2) and (4), the Br and the S1U1B0 ligands are on opposite sides of the plane, making them trans-isomers.

Consider the Following Isomers of [Co(NH3)4Br2]+

Consider the Following Isomers of [Co(NH₃)₄Br₂]⁺