Summary
Summary Spectroscopy
- Institution
- University Of East Anglia
Drug design and mechanisms of drug action - 1st semester Includes bullet points, key diagrams and images
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SpectroscopyIR Spectroscopy
E=hv
vλ=c
E=c(c/λ)
E=energy (J)
h=Planck’s constant
c=speed of light
v=frequency (s)
Works as dipoles between functional
groups
1/λ=v
v is inversely proportional
K is force constant- increasing K
increases bond strength and
frequency. K is proportional to v
μ is mass of atom in bond- increasing it decreases frequency. It’s inversely
proportional to v
Factors Affecting Carbonyl Frequency
Conjugation weakens carbonyl bond so decreases K and v
Ring strain strengthens carbonyl bond so increases K and v
Substitution increases carbonyl bond strength so increases K and v
Hydrogen bonding weakens carbonyl bond strength so decreases K and v
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