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ROHINI DAS Grade: 12
        1,what are strong and weak field ligands?

2.how to determine the hybridisation of coordination compound.
3.crystal field theory in details?
7 years ago

Answers : (1)

SAGAR SINGH - IIT DELHI
879 Points
										

Dear rohini,


The weak field and strong field ligands are based on their capability of splitting. And are represented in Spectrochemical Series which is a derived list of ligands ordered by the size of the splitting Δ that they produce. It can be seen that the low-field ligands are all π-donors (such as I-), the high field ligands are π-acceptors, such as CN- and CO), and ligands such as H2O and NH3, which are neither strong or weak , are in the middle.


I < Br < S2− < SCN < Cl < NO3 < N3 < F < OH < C2O42− < H2O < NCS < CH3CN < py (pyridine) < NH3 < en (ethylenediamine) < bipy (2,2'-bipyridine) < phen (1,10-phenanthroline) < NO2 < PPh3 < CN < CO


(Order of Increasing splitting weak field to strong field).





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Sagar Singh


B.Tech IIT Delhi




6 years ago
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