ACS Exam Organic Chem Questions and
Answers Graded A 2024
POSSIBLEA
ACS
8/9/24
, ACS Exam Organic Chem Questions and Answers Graded A 2024
O-H and N-H IR shift - 3400 cm⁻¹
C-H SP³ IR shift - 3000-2850 cm⁻¹
C-H SP₂ IR shift - 3100-3000 cm⁻¹
C-H SP IR Shift - 3300 cm⁻¹
3x bond C-C IR shift - 2100 cm⁻¹
C=O IR shift - 1700 cm⁻¹
C=C and C-C aromatic IR shift - 1600 cm⁻¹
Aromatic C-C IR shift - 1500 cm⁻¹
HNMR shift of methyl hydrogen - 1 ppm
HNMR shift of hydrogen attached to SP2 carbon - 2 ppm
HNMR shift of aromatic hydrogen - 7-8 ppm
HNMR shift of hydrogen attached to SP3 carbon attached to a pi system - 5-6 ppm
HNMR shift of aldehyde proton - 10 ppm
HNMR shift of carboxylic acid proton - 11-12 ppm
CNMR shift of SP₃ alkyl carbon - 10-30ppm
CNMR shift of SP₃ C attached to O, N or halogen - 50-70 ppm
CNMR shift of SP Carbon - 75-90 ppm
CNMR shift of SP₂ carbon (double bond or aromatic carbon) - 100-150 ppm
CNMR shift of ester, amide or carboxyl carbon c=o - 160-180 ppm
CNMR shift of aldehyde or ketone carbon c=o - 190-200 ppm
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