Weekly Bulletin

WEEKLY BULLETIN

CHEM351F24
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THIS NEWSLETTER IS UPDATED ON FRIDAY EACH WEEK DURING THE SEMESTER WITH ITEMS THAT RELATE TO WHAT'S HAPPENING IN CHEM351F24:

Here is a link to the big picture view of the semester as a whole : course calendar (remember that teaching is a dynamic process and sometimes things have to change!)

This is written based on L02 in-person progress but this will help L01 students keep track of where they should be.

CHEM351F24 wk10, Oct 28-Nov 4

CHEM351F24 MT was Oct 30th 2024. Grading is underway but with the small grading team, we don't expect to have grading complete before Nov 8th.

CHEM351F24 deferred MT runs WED Nov6th 19:00-21:00. Like the regular MT, the deferred MT covers all lecture materials up to and including IR, CAL 1-3, laboratory up to an including models, plus working knowledge of prerequisites.

CAL TUTORIALS (SA204)

No food or drink in SA204 (especially at the student desktop PCs).
Start to work on spectroscopy (a significant part of 351), and a topic that requires practice and skill development.
There are Moodle activities on each of the spectroscopic methods (IR, MS, NMR as well as other related skills (e.g. IHD, counting H and C types)
Reviewing etext Ch13 is also strongly recommended... (practice materials there too)
For more information see the CAL tutorial section of the course website.
The full F24 CAL assignment schedule is here (including dates and coverage).

LABORATORY

A reminder that your acetaminophen report is due to the D2L Dropbox by midnight, Friday Nov 1st, 2024.
For the experiment this week, you will be performing the synthesis of aspirin. As per the Chem 351 student laboratory manual, you are required to:
- (1) complete the pre-lab quiz (5 min) in Moodle (available from 06:00 the day before your laboratory session). The deadline is 30 mins. before the scheduled start time of your laboratory session and
- (2) submit your pre-lab summary (4-5 sentences, 100 (or less) of your own words) as a PDF file to the appropriate D2L Dropbox by 30 mins. before the scheduled start time of your laboratory session
Make sure you :
- have and wear your laboratory safety coat
- have and wear your laboratory safety glasses
- are dressed appropriately, see poster
- work in a fumehood
- remove your gloves before you leave the laboratory
- use your laboratory notebook and remember to submit a paper copy your laboratory notes before leaving the laboratory session.
Some students underestimate laboratory sessions, so please make sure you've looked after yourself and had food and fluids before starting a 3hr lab !
For more information see the laboratory section of the course website.
The full F24 experimental schedule is here.

LECTURE topics (L01, L02) (including review list of previous weeks):

(Nov 11-15)	F24 Semester break (no classes)
Wk 10 (Nov 4-8)	Nuclear magnetic resonance (NMR), shielding, magnetic anisotropy Characteristic chemical shifts, "levels" of information in H-NMR, integration, coupling patterns, coupling constants and the n+1 rule Other issues in H-NMR : "accidental equivalence", typical coupling constants (J), complex coupling patterns 13C-NMR : comparison with H-NMR, typical 13C chemical shifts, interpreting 13C spectra Corresponds to content video modules 13A, 13B and TBA (D2L content folder, videos/templates will added when they are available and keeping pace with in-person L02, but posted after L02 occurs)
Wk 9 (Oct 28-Nov 1)	Mass spectrometry : basis and terminology isotope patterns (esp. for Cl & Br). Nuclear magnetic resonance (NMR), basic principles, chemical shift Corresponds to content video modules 12 & 13A (D2L content folder)
Wk 8 (Oct 21-25)	Alkane reactions: Radical substitution for the halogenation of alkanes and related systems (allylic and benzylic). Spectroscopy : Background. Overview of the spectroscopic methods (MS, IR, H-NMR, 13C-NMR) : What do each of them tell you ? Deducing structures. Infra-red spectroscopy : basic principles, important absorptions Corresponds to content video modules 09, 10, 11 (D2L content folder)
Wk 7 (Oct 14-18)	Monday Oct 14th, THANKSGIVING, UofC closed, no classes Review oxidation states (not covered in lectures : should be first yr / high school review, template / worksheet provided facilitate the review) Review Hydrocarbons : types of hydrocarbon, saturation and unsaturation. Alkanes : alkanes and cycloalkanes : isomers, physical properties related to structure (intermolecular forces), thermodynamic stability of alkanes (linear vs branched). Alkane reactions: Radical substitution for the halogenation of alkanes Corresponds to content video modules 08A, 08B (D2L content folder)
Wk 6 (Oct 7- 11)	Acidity and basicity : Rationalising acidity and basicity at the molecular level by looking at factors that affect these properties : the nature of the atom the H is attached to (electronegativity, size, charge, effect of hybridisation), stabilisation due to resonance and / or inductive effects. Minor factors: solvation and steric effects. Application of acidity / basicity principles to reactions based on pKa. Corresponds to content video modules 07A, 07B, 07C (D2L content folder)
Wk 5 (Sept 30 - Oct 4)	Monday Sept 30th, Truth and Reconciliation Day, UofC closed, no classes. The families of reaction mechanisms. Formal charges (assigning and recognising based on structures and curly arrows). Acidity and basicity : review definitions, Ka and pKa etc. The acidity ladder. Corresponds to content video modules 06A, 06B (D2L content folder)
Wk 4 (Sept 23-27)	Resonance - implications of structure, recognising and ranking resonance contributors Resonance - contd: examples of "resonance in action" Mastering mechanisms : Curly arrows : make them talk to you ! Corresponds to content video modules 05, 06A (D2L content folder)
Wk 3 (Sept 16-20)	Continue: molecular geometries (using VSEPR) What happens at the molecular level when atoms interact to form bonds ? Electron density animation of 2 interacting H atoms -> H₂ How do covalent bonds form and what are molecular orbitals ? Bonding and anti-bonding orbitals. Why no He₂ ? Bonding in organic systems : hybridisation for hydrocarbons, and then heteroatom systems. (Flash animation for visualising hybridisation). Bonding in alkanes, alkenes and alkynes. Corresponds to content video modules 03D, 04A, 04B (D2L content folder)
Wk 2 (Sept 9-13)	Continue the language of organic chemistry: "text and symbols" : Drawing line diagrams. Curly arrows. Structure and Bonding: etext Ch1 : The relationship of structure and function. Atomic structure and terminology. Bonding, bond types, bond properties, molecular geometries (VSEPR), acidity and pKa. Corresponds to content video modules 01, & 02A, 03A, 03B, 03C (D2L content folder)
Wk 1 (Sept 3-6)	Introduction to Organic Chemistry I. Overview of course components, using TopHat etc. What to expect, what to do, what not to do etc. How to work for your personal success. Our expectations. Chemistry 351 concept map (the big picture connecting the concepts together). The language of organic chemistry: "text and symbols" Definitions of key terms: functional group, nucleophile, electrophile, leaving group, electronegativity, resonance. CHEM351F24 lectures start Wed Sept 4th 2024. Corresponds to content video modules 00, 01, & 02A (D2L content folder)

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