1.

Consider the complex [CoH(N_(2))(PPh_(3))_(3)] havingtrigonal bipyramidal geometry in which cobalt is dsp^(3) hybridised. Select the correct statements regarding the given complex.

Answer»

IUPAC name of the COMPLEX is hydridodinitrogentris (triphenylphospine) cobalt (I).
It is diamagnetic in nature.
`N^(2)` occupies axial position.
N-N bond length is longer than free `N_(2)` molecule.

Solution :`Cc^(+)=[Ar]4s^(1)3d^(7)`
`PPh_(3)` and `N_(2) to S.F.L.`
`Co^(+)=[Ar]3d^(8)`

Trigonal bipyramidal geometry with `dsp^(3)`hybridisation.All electrons are paired so diamagnetic `(dsp^(3))`.
ACCORDING to BENT's rule, in a TBP geometry more electronegative SPECIES `(N_(2))` occupies axial position. (a) Dinitrogenhydridotris (triphenyphosphine) cobalt (I) is the correct IUPAC name.


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