CEM311 Inorganic Chemistry

Instructors Professor Rémi Beaulac Office: Room 401 Chemistry

Email: beaulacr@chemistry.msu.edu

Professor Thomas Hamann Office : Room 411 Chemistry

Email : hamann@chemistry.msu.edu

Office Hour Wednesday, 1:30PM – 2:30PM, or upon request

TA Mersedeh Saniepay Office: Chemistry Help Room: Room 81 & 83 Chemistry Building

Office Hour: Monday 5:00 – 6:00PM (Chemistry help room, CHB 81-83) Email: saniepay@chemistry.msu.edu

Grading- Quizzes: 10 %. Distributed periodically, graded

generously.

- Homeworks: 15%. Distributed weekly.

- 3 Midterms: 50% total

- 1 Final: 25%

The following grading scheme will be used:

2.0 for ≥50%, 1.5 for ≥40%, 1.0 for ≥30%, 0.5 for ≥20%0 for <20%

Note that these percentages represent the maximum needed for a given grade and I am generous when it comes time to assigning a final grade.

4.0 for ≥90%, 3.5 for ≥80%, 3.0 for ≥70%, 2.5 for ≥60%,

Format of the ClassHomework

There will be homework problems assigned weekly to help reinforce information presented in the lectures and the textbook. Homeworks need to be turned in by the beginning of the class indicated on the header of the homework in order for full credits to be given. Late homeworks will be graded with a 50% penalty. All completed homework need to be turned in to pass the class, no matter the grade.

Quizzes Quizzes will be distributed periodically – these quizzes are intended to be short (~5 to 10 minutes), and will be designed to help you stay on track with the new material covered in class. Most of the time, these quizzes will be given at the end of one class and due at the beginning of the other, but in-class quizzes might also be distributed. In general, quizzes will be graded very generously – the idea is to encourage you to at least give it a try; nevertheless, missed or late quizzes will not be graded.

MidtermsThere will be three midterm exams; each are cumulative, but with a large emphasis on the more recent materials covered before each exam. The midterms will be given outside regular class time to allow for extended exam time. No make-up midterm exams will be given. In the event of illness or other extenuating circumstance, you must notify the instructors prior to the examination. Appropriate documentation will be required, and you will be assigned a score based upon the weighted average score of your other examinations and of your final exam. Only one mid-term exam may be missed—if a second exam is missed the grade on that exam will be zero.

On the day of each exam, the class will be replaced by a recitation to review the materials of each exam.

Format of the Class

Final Exam The final exam is scheduled for Thursday, May 5, 12:45PM – 2:45PM in Chemistry 136. Students who have more than two final exams scheduled for the same day will be allowed to take an alternate exam. If you have a conflict with the exam times, please contact the instructors immediately.

Midterm 1: Wednesday, February 10, 7 - 9PM, Chemistry 136Midterm 2: Wednesday, March 16, 7 - 9PM, Chemistry 136Midterm 3: Wednesday, April 13, 7 - 9PM, Chemistry 136

Final Exam: Thursday, May 5, 12:45PM - 2:45PM, Chemistry 136

Exam Schedule

Atoms &Diatomic Molecules

Block 1Week 1 - 2

SymmetryBlock 3Week 5 - 7

Chemical Bondsin Molecules

Block 2Week 3 - 4

Inorganic Complexes& Ligand-Field Theory

Block 4Week 7 - 10

Special TopicsBlock 6Week 13 - 16

Tentative Sequence of Topics

Block 5Week 11 - 12 Solid-State Materials

What is Inorganic Chemistry?

Inorganic chemistry is the study of the synthesis and behavior of inorganic and organometallic compounds. It has applications in every aspect of the chemical industry–including catalysis, materials science, pigments, surfactants, coatings, medicine, fuel, and agriculture. Inorganic chemists are employed in fields as diverse as the mining and microchip industries, environmental science, and education. Their work is based on understanding the behavior and the analogues for inorganic elements, and how these materials can be modified, separated or used–often in product applications. [...] Inorganic chemists compare their jobs to those of materials scientists and physicists. All three fields explore the relationship between physical properties and functions, but inorganic chemistry is the most keenly focused on these properties at the molecular level.

American Chemical Society, Careers in Chemistry

Inorganic Compounds are Everywhere!Displays

Electronics

Energy Conversion

Energy Storage

Polymerization CatalystsLasers

Lighting

Organic Compounds...

vs Inorganic Compounds...

Characteristics of Inorganic Compounds

• d and f orbitals are populated, or easily accessible

• very weak to very strong bonds

• wide variety of geometries

• can have unpaired electrons (magnetism)

• Low-energy electron excitations

• Many stable oxidation states

Medicinal Chemistry

Prof. Barnett Rosenberg1926-2009

MSU: 1961-1997

cisplatinMSU 1965

Organometallic Catalysis

Olefin Metathesis Reaction

Robert GrubbsNobel 2005

MSU 1969-1978Caltech 1978-

Artificial Photosynthesis~ 1980s 2011

Harry B. Gray

Columbia 1961-1966Caltech 1966-

Daniel G. Nocera

MSU 1984-1997MIT 1997-2013 Harvard 2013-

Bioinorganic ChemistryHemoglobin

Photosystem II

structure of the OEC (oxygen-evolving

complex) as of 2015

Nanotechnologies

1-100 nanometers1 nm = 10-9 m

Carbon Nanotubes Quantum Dots

• New electronic devices• Energy-efficient light-emission • Bio-imaging• Targeted drug delivery

Table 1.1 - Properties of the Proton, Electron, and Neutron

It All Starts with the Atom…

Figure 1.1 Mass spectrometric traces for (a) atomic Ru and (b) molecular S8; the mass : charge ratio is m/z and in these traces z = 1. (c) The molecular structure of S8.

Ru S8

Niels Bohr (1885 - 1962)

The atom is: 1) Negatively charged particles

(electrons) orbiting around 2) a positively charged and heavy

nucleus 3) on circular orbits of very precise

radii.The Rutherford-Bohr Atom:

An electron can change its orbit by absorbing or releasing energy under

the form of light

Problems with the Bohr Model:

Why is the electron not falling onto the nucleus? What makes it “stay” on precise orbits?

The Bohr model only works for atoms with one electron, that is, it only works in practice for hydrogen…

The Bohr model says nothing about molecules, which means that it is not very useful for chemists.