Asked by chemi

Which one of the following complex ions has an optical isomer?
a. [Zn(phen)2]2+
b. [Cu(CN)4]2–
c. [Co(H2O)4en]2+
d. [Zn(NH3)2en]2+
e. [Ni(en)3]2+

is the answer a)
im confused as to what phen and en stand for.

Answers

Answered by DrBob222
Not a.
phen stands for 1,10 phenothroline.
en stands for ethylenediammine tetraacetic acid.
To answer this, draw a square for a and b and see if there are cis and trans isomers.
For the others draw an octahedron and check for cis and trans isomers.
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