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

Options

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

Answer

B, C, D

Explanation

`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.