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Exam 1 Organic Chem
MS/NMR/UV
Question | Answer |
---|---|
"9 0" Code | Tert-butyl |
"6 1" Code | Isopropyl |
"2 3" Cross | Ethyl Stopper |
"3 0" Code | Methyl Stopper |
Chem shift greater than 1 diffrence | Oxygen touching |
Chem Shift less than 1 diffrence | Not touching |
Chem Sift "6.5-8.0" | BENZENE |
IR: 1720 | C=O |
IR: 3200-3500 | Aromatic ring |
IR: | C=O |
Mass Spec 1:1 ratio | Bromine 79 and 81 |
Mass Spec 3:1 ratio | Chlorine 35 37 |
Dept 90 | CH |
Dept 135 Positive Peaks | CH3 and CH |
Dept 135 Negative Peaks | CH2 |
Magnetic Nuclei include __(+) or (-)__ and _____ | odd protons and odd neutrons |
IR | the amount necessary to increase molecular motion in functional groups |
NMR | the amount necessary to flip the spin on atomic nuclei |
UV | amount necesarry to excite electrons from one molecule orbit to another |
MS | energy needed to strip molecule of one electron from one to generate radical cation |
physical constant that measure amount of UV absorbed is | molar absorptivity (E) |
longet wave = what in terms of conjuation | MOST |
base peak | Strongest intensity |
M+ | radical cation corresponding to the mass of the original molecule |