Question

Name the following coordination entities and draw the structures of their steroisomers:
(i) $\left[Co\right(en{)}_{2}C{l}_2{]}^{+}(en=ethane-1,2-diamine)$
(ii) $\left[Cr\right(C_2{O}_4{)}_3{]}^{3-}$
(iii) $\left[Co\right(N{H}_3{)}_{3}C{l}_3]$
(Atomic number $Cr=24,Co=27$)

Answer 1

(i) $\left[Co\right(en{)}_{2}C{l}_2{]}^{+}$: dichoridobis (ethylenediamine) cobalt (III) ion (as 2 chlorine atoms are there di chloro, 2- ethylene diamine groups represent bis (en) .

(ii) $\left[Cr\right(C_2{O}_4{)}_3{]}^{3-}$: Trioxalatochromate (III) ion (as 3 oxylate groups represents (tri oxylatato))
(iii) $\left[Co\right(N{H}_3{)}_{3}C{l}_3]$: triamminetrichloridocobalt (III) ( as three ammino and three chloine atoms represent tri ammine tri chloro )