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Concept explainers
Interpretation:
The oxidation state of metals and thetotal number of valence electrons in metals forming complexes are to be determined. Whether the metals in the complexes are saturated or unsaturated is also to be stated.
Concept Introduction:
Oxidation state of a metal in a complex is the charge on the metal that would be there even if all the anionic ligands and counter ions were removed.
Total valence electrons of a metal in a complex is obtained by the following formula:
Total number of valence electrons of metal in complex =
Here,
The number of electrons required to complete the octet in
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Chapter 21 Solutions
Organic Chemistry, 12e Study Guide/Student Solutions Manual
- What is the coordination number of the central metal atom in the following complexes? (a) [Fe(H2O)63+] (b) [Pt(NH3)Br3] (c) [V(en)Cl42] (d) [Au(CN)2+]arrow_forwardHow many bonds could each of the following chelating ligands form with a metal ion? (a) acetylacetone, a common ligand in organometaillic catalysts CH3 -C-CH2-C- CH3 (b) diethylenetriamine, used in a variety of industrial processes NH2-CH2-CH2-NH-CH2-CH2-NH2 (c) salen, a common ligand for chiral organometallic catalysts OH Но (d) porphine, often used in supermolecular chemistry as well as catalysis; biologically, porphine is the basis for many different types of porphyrin-containing proteins, including heme proteins NH N- N- HN-arrow_forwardThe SCN – ligand is an ambidentate ligand. When it is S-bound, it has the name thiocyanate, and the M–S–C bond angle is bent. When it is N-bound, it has the name isothiocyanate, and the M–N–C bond angle is ~180 ̊. (a) Draw Lewis dot structures for M–NCS and M–SCN that explain the observed geometries. (b) Predict the structures of the metal-ligand bonding when SCN– reacts with Fe 2+ to form the bright red Fe(SCN)2+ ion. (c) Predict the method of bonding when Cr3+ reacts with the SCN – ligandarrow_forward
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