wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Out of [CoF6]3 and [Co(en)3]3+, which one complex is:
(i) paramagnetic
(ii) more stable
(iii) inner orbital complex and
(iv) high spin complex (Atomic no. of Co = 27)

Open in App
Solution

Co3+=[Ne]3s2 3p6 3d6
F is weak field ligand for Co3+ thus pairing of d-orbitals electrons does not happen, so it forms:
1. outer orbital complex of hybridization sp3d2
2. high spin complex means that there are more number of unpaired electrons
en = ethylenediamine is a strong field ligand for Co3+ thus the pairing of d-orbitals happening for formation of complex of Co3+ with ligand ethylenediamine so it forms:
1. inner-orbital complex of hyridization d2sp3
2. low spin complex
3. Stable complex form beacuse of ethylenediamine is a chelating legand.
(i) Unpaired of electrons present in [CoF6]3 thus it is paramagnetic complex.
(ii) [Co(en)3]3+ is more stable beacuse of chelation.
(iii) [Co(en)3]3+
(iv) [CoF6]3

flag
Suggest Corrections
thumbs-up
41
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Valence Bond Theory
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon