Study Guides (238,242)
Canada (115,037)
Chemistry (130)
CHM247H1 (16)

CHM247 Term Test 1 Study Sheet

10 Pages
Unlock Document

University of Toronto St. George
Pete Duspara

stCHM247 1 Term Test Study Sheet Page1 Degrees of Unsaturation y Number of multiple bonds or rings in a structure y Formula for saturated acyclic compound is CH n2n2y Each ring or multiple bond replaces 2 Hs y Formal formulawhere i is the number of that atom in the formal and v is ithe bonding capacity for H y Informal rules o Halogens replaces hydrogen o Oxygen doesnt affect hydrogen count o Nitrogen means to subtract one hydrogen from count Infrared Spectroscopy y IR energy absorption relates to stretch and bending of bonds o Symmetric or antisymmetric stretch o In plane or out of plane stretch y Dipole moment change required during vibration for IR absorption y Light atoms bonded to heavy atoms OH vibrate fast y Heavy atoms and stronger bonds require more energy yy Alkanes o No double bonds wavenumber below 3000 o Some CC stretches in fingerprint region y Alkenes o Sp2 hybrid means a wavenumber above 3000 o Sp2 carbonhydrogen will mean out of plane bending observed in fingerprint region below CC spikesOne spike per hydrogen in the 900s o Also a CC spike16401680 in fingerprint region above the CC spikesif double bond is terminalIf not terminal dipole moment is not strong enough y Alkynes o Sp1 hybrid means a wavenumber far above 3000
More Less

Related notes for CHM247H1

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.