Chapter 14 concepts Flashcards
Diluted Alcohols
Because they lack hydrogen bonding, they will have a sharper absorption
Symmetry
No change in bond dipole, no bond dipole
Ester vs ketone
Ketone’s sp3 CH has a higher wave number
vinylic ch
3100
why 2 signals for 12 sp3?
symmetric and asymmetric
degenerate
same energy level
hydrogen bond
dipole dipole
protic
one h bond to electronegative atom
frequency is directly proportional to
energy
frequency is inversely proportional to
wavelength
wavelength is inversely proportional to
energy
electromagnetic spectrum
gamma, x, uv, visible, ir, microwave, radio
radio
highest wavelength
gamma
highest frequency
ir tells you
functional groups
mr tells you
arrangement of c and h
uv vis spectroscopy
conjugated pi bond
absorption of ir results in
vibrational excitement of the bonds in a compound, stretching and bending
location of signal
wavenumber
warm objects
emit more ir
wavenumber unit
cm -1
stretching virbration
directly proportion to strength, inversely proportional to reduced mass
vibration must result in
change of bond dipole
primary amines have
symmetrical and asymmetrical stretching
