Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 23 - Transition Metals and Coordination Chemistry - Exercises - Page 1034: 23.30b

Answer

Coordination number: 6

Work Step by Step

The metal $Co$ is bonded to two ligands, $(C_{2}O_{4})_{2}$ and $Cl_{2}$. Oxalate $(C_{2}O_{4})_{2}$ is a bidentate ligand whereas Chloride ($Cl_{2}$) is a modentate ligand. Two oxalate are present ($2\times2=4$) and two chloride are present $(2$). Thus, the coordination number is $4+2=6$
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