Payal posted an Question
July 10, 2020 • 06:00 am 30 points
  • IIT JAM
  • Chemistry (CY)

Explain co(nh3)6 is an inner orbital complex whereas ni(nh3)2 is an outer orbital complex.

Explain Co(NH3)6 is an inner orbital complex whereas Ni(NH3)2 is an outer orbital complex.

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    Priyanshu kumar Best Answer

    in ni(nh3)6 2+ nickel is in +2 o.s so configuration is 3d8 here in presence of nh3 ligand 3d electrons is not pair up and hybridization is sp3d2 and outer orbital complex is formed

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    why in case of 'Co' 3d electrons gets paired up but not in case of 'Ni'? Please explain

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    so case arises here if let suppose pair up then how much d orbital left...only one...but in case of octahedral hybridization is sp3d2 or d2sp3

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    Meghna got??

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    always keep in mind that octahedral complexes of Co2+,ni2+,cu2+ and zn2+ must be outer orbital...as their electronic arrangement doesnt allow to form inner orbital conplexes

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    I got it thank you ☺️

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    please accept the answer😊

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    Priyanshu kumar

    in co(nh3)6 3+ cobalt is in +3 o.s so configuration is 3d6...so in presence of Nh3 ligand the electron is forced to pair up thus leaving 2 empty inner d orbital so d2sp3 hybridisation occurs and inner orbital complex is formed

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    Lingareddy 1

    co +3 has over stability constant high when it is low spin complex

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