Download CHEM 490 - Nicholls State University

CHEM 490
Advanced Topics in Chemistry
Spring 2010
Instructor: Dr. Jeremy Wessel
Office: Pel 245C
Office Phone: (985) 448-4504
E-mail: [email protected]
Office Hours: 10:00-12:00 MWF, 1:00-2:00 MW, 10:30-11:30 TR
Catalog Description: CHEM 490. Advanced Topics in Chemistry. 3-3-0. Prerequisites:
Completion of CHEM 304 and senior standing. An in depth study of a specific topic in
chemistry. May be repeated for credit if content differs. (40.0599)
Prerequisites: Completion of CHEM 304 and senior standing.
Required Text/Other Materials: Crabtree, The Organometallic Chemistry of the Transition
Metals, 4th ed. New York: Wiley, 2005
Required Supplemental Readings:
The class Blackboard page will be used for announcements, supplementary materials etc.
Student Outcome Goals and Objectives
At the end of the class the student will be able to:
 Count electrons and determine oxidation states of metals in organometallic complexes
 Demonstrate an understanding of the structure of organometallic complexes
 Give a molecular orbital explanation of bonding in carbonyl and alkene complexes
 Demonstrate an understanding of the preparation and reactivity of common types of
organometallic complex
 Demonstrate an understanding of the use of organometallic complexes in catalysis
Course Content:
Chapter 1- Introduction
Werner complexes, the trans effect, soft vs. hard ligands, crystal field, ligand field, back
bonding, electroneutrality, types of ligand.
Chapter 2- General Properties of Organometallic Complexes
18-Electron Rule, Electron Counting in Reactions, Oxidation State, Coordination Number
and Geometry, Effects of Complexation, Differences between Metals, Outer-Sphere
Coordination
Chapter 3- Metal Alkyls, Aryls, and Hydrides and Related -Bonded ligands
Transition Metal Alkyls and Aryls, Related -Bonded Ligands, Metal Hydride
Complexes, σ Complexes, Bond Strengths for Classical σ-Bonding Ligands.
Chapter 4- Carbonyls, Phosphine Complexes, and Ligand Substitution Reactions
Metal Complexes of CO, RNC, CS, and NO, Phosphines and Related Ligands,
Dissociative Substitution, Associative Substitution, Redox Effects, The I Mechanism, and
Rearrangements in Substitution, Photochemical Substitution, Steric and Solvent Effects
in Substitution.
Chapter 5- Complexes of -bound ligands
Alkene and Alkyne Complexes, Allyl Complexes, Diene Complexes, Cyclopentadienyl
Complexes, Arenes and Other Alicyclic Ligands, Metalacycles and Isolobal
Replacement, Stability of Polyene and Polyenyl Complexes
Chapter 6- Oxidative Addition and Reductive Elimination
Concerted Additions, SN2 Reactions, Radical Mechanisms, Ionic Mechanisms, Reductive
Elimination, -Bond Metathesis, Oxidative Coupling and Reductive Fragmentation
Chapter 7- Insertion and Elimination
Reactions Involving CO, Insertions Involving Alkenes, Other Insertions,  and 
Elimination
Chapter 8- Nucleophilic and Electrophilic Addition and Abstraction
Nucleophilic Addition to CO, Nucleophilic Addition to Polyene and Polyenyl Ligands,
Nucleophilic Abstraction in Hydrides, Alkyls, and Acyls, Electrophilic Addition,
Electrophilic Abstraction of Alkyl Groups, Single-Electron Transfer Pathways, Reactions
of Organic Free Radicals with Metal Complexes.
Chapter 9- Homogeneous Catalysis
Alkene
Isomerization,
Alkene
Hydrogenation,
Alkene
Hydroformylation,
Hydrocyanation of Butadiene, Alkene Hydrosilylation and Hydroboration, Coupling
Reactions, Organometallic “Oxidase” Reactions, Surface and Supported Organometallic
Catalysis.
Course Requirements:
Chapter 2 quiz
3 hour exams on ch. 3-4, 5-6, 7-8
Final Exam
Presentation
Total
30 pts.
300 pts.
200 pts.
50 pts.
580 pts.
Method of Evaluation: Grades will be determined using the following scale:
A: 90-100%
B: 80-89%
C: 70-79%
D: 60-69%
F: <60%
This scale may be adjusted downward if the class average is low. (This is determined at the end
of the semester.)
Honors students may obtain honors credit by completing a special project determined with the
instructor.
Academic Honesty Policy: Anyone found cheating will be subject to the penalties stated in
Student Code of Conduct including but not limited to a score of zero on exam, expulsion from the
class or expulsion from the University.
Attendance Policy: No excuses are necessary for missing class. The student is responsible for
making up any missed work. Attendance is essential to doing well in the course.
Make-up Policy: Missed exams should be made up as soon as possible. Exams can be made up
for an excused absence only.
Academic Disabilities Policy: If you have a documented disability that requires assistance, you
will need to register with the Office of Disability Services for coordination of your academic
accommodations. The Office of Disability Services is located in Peltier Hall, Room 100-A. The
Phone Number is (985) 448-4430 (TDD 449-7002).
Academic Grievances:
The proper procedure for filing grade appeals or grievances related to academic matters is listed
in Section 5 of the Code of Student Conduct and at the following link:
http://www.nicholls.edu/documents/student_life/code_of_conduct.pdf.
Continued Learning following an Extreme Emergency:
In order to make continued learning possible following an extreme emergency, students are
responsible for:
•
reading regular emergency notifications on the NSU website;
•
knowing how to use and access Blackboard (or university designated electronic delivery
system);
•
being familiar with emergency guidelines;
•
evacuating textbooks and other course materials;
•
knowing their Blackboard (or designated system) student login and password;
•
contacting faculty regarding their intentions for completing the course.
Faculty are responsible for:
•
their development in the use of the Blackboard (or designated) software;
•
having a plan for continuing their courses using only Blackboard and email;
•
continuing their course in whatever way suits the completion of the course best, and
being creative in the continuation of these courses;
•
making adjustments or compensations to a student’s progress in special programs with
labs, clinical sequences or the like only in the immediate semester following the emergency.
Semester Withdrawals: The last day to withdraw from the class with a ‘W’ is March 31, 2010.
Class Disruptions are not tolerated. The use of cell phones, pagers and/or any other electronic
personal device in class is prohibited. Talking in class without permission of the instructor is
unacceptable. Any infractions will result in dismissal from class.