Questions/Coordination Compounds/Isomer 'A' $$(CoSO_4...
Isomerism in ComplexesCoordination Compounds

Isomer 'A' (CoSO4Cl5NH3)(CoSO_4​ Cl⋅5NH_3​) gives a white ppt with AgNO3AgNO_3 ​but no reaction with BaCl2BaCl_2​. What is its structural formula?

Expert Answer

[Co(SO4)(NH3)5]Cl[Co(SO_4)(NH_3)_5]Cl . The reaction with AgNO3AgNO_3 indicates ClCl^- is outside the coordination sphere (ionisable), while SO42SO_4^{2-} is inside.

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