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How is spectrochemical series is used to identify the type of ligands ? |
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Answer» Solution :`(i) I^(-) lt Br^(-) lt SCN^(-) lt Cl lt S^(2-) lt F^(-) lt OH^(-)~~` urea `OH^(2-) lt H_(2) lt NCS^(-) lt EDTA^(4-) lt NH_(3) lt EN lt NO_(2)^(-) lt CN^(-) lt CO` The above series is known as spectrochemical series. `(ii)` The ligands present on the right side of the series such as carbondyl cause RELATIVELY larger crystal field SPLITTING and are called strong ligands (or) strong field ligands. `(iii)` The ligands on the left side are called weak field ligand and causes relatively smaller crystal field splitting. |
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