Chemistry: Molecular Approach (4th Edition)

Published by Pearson
ISBN 10: 0134112830
ISBN 13: 978-0-13411-283-1

Chapter 25 - Exercises - Page 1153: 14


Complexes with strong field ligands are called low-spin complexes and complexes with weak field ligands are called high-spin complexes.

Work Step by Step

In general, complexes with strong field ligands have fewer unpaired electrons compared to the free metal ion and are therefore called low-spin complexes. Complexes with weak field ligands, in contrast, have the same number of unpaired electrons as the free metal ion and are called high-spin complexes. For example, \[Fe{{\left( {{\left( CN \right)}_{6}} \right)}^{4-}}\]: low-spin complex \[Fe{{\left( {{H}_{2}}{{O}_{6}} \right)}^{2+}}\]: high-spin complex
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