Zumdahl_chapt_21_sanitized

Zumdahl_chapt_21_sanitized - Chapter 21 Coordination...

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Unformatted text preview: Chapter 21 Coordination Chemistry 17.1 Transition Metals 17.2 First Row Transition Metals 17.3 Coordination Compounds 17.4 Isomerism 17.5 Bonding - Localized Electron Model 17.6 Crystal Field Model 17.7 Biologically Important Complexes 17.8 Metallurgy The importance of being "d" Transition Metals More than one oxidation state Cations often form complex ions Most compounds are colored Many compounds are paramagnetic The importance of being "d" More than one oxidation state More than one oxidation state Cations often form complex ions Cations often form complex ions Most compounds are colored Many compounds are paramagnetic Many compounds are paramagnetic The importance of being "d" Many compounds are paramagnetic The importance of being "d" Paramagnetic = unpaired electrons = attracted to magnetic field Many compounds are paramagnetic The importance of being "d" Transition Metals More than one oxidation state More than one oxidation state Cations often form complex ions Most compounds are colored Most compounds are colored Many compounds are paramagnetic Many compounds are paramagnetic The importance of being "d" More than one oxidation state More than one oxidation state Cations often form complex ions Most compounds are colored Most compounds are colored Many compounds are paramagnetic Many compounds are paramagnetic The Co(NH 3 ) 6 3+ Ion Electron Configurations Figure 7.26 Electron Configurations for Potassium Through Krypton [Ar] + Ar Electron Configurations Why exceptions? Must consider TOTAL energy of system! Electron Configurations - Ions Must consider TOTAL energy of system! The energy of the 3d orbital in the ION is significantly less than the 4s orbital . Electron Configurations - Ions Must consider TOTAL energy of system! The energy of the 3d orbital in the ION is significantly less than the 4s orbital . First Row Transition Metal Ions Sc 3+ Zn 2+ Do not have 4s electrons! Coordination Compounds Transition metal complex ion + counterion(s) Coordination Compounds Transition metal complex ion + counterion(s) Cl- Cl- Cl- Co(NH 3 ) 6 3+ [Co(NH 3 ) 6 ]Cl 3 Coordination Compounds Transition metal complex ion + counterion(s) Cl- Cl- Cl- Co(NH 3 ) 6 3+ [Co(NH 3 ) 6 ]Cl 3 Coordination Compounds Dissolves in water to form FOUR ions Cl- Cl- Cl- Co(NH 3 ) 6 3+ [Co(NH 3 ) 6 ]Cl 3 Coordination Compounds [Co(H 2 O) 6 ]Cl 3 [CoCl(H 2 O) 5 ]Cl 2 [CoCl 2 (H 2 O) 4 ]Cl...
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This note was uploaded on 10/26/2008 for the course CHEM 105BL taught by Professor Warshel during the Summer '07 term at USC.

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Zumdahl_chapt_21_sanitized - Chapter 21 Coordination...

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