A compound has a strong absorption at 4.04x1016 Hz. What is the Amax(in A (angstroms)) for...
1-A compound has a strong absorption at 5.59x10^16 Hz. what is the Ymax( in angstroms) for this compound? (Round answer to one decimal place) 2-A student notice that the molar absorptivity was 619 mL/(mg*m). What is the molar absorptivity in units of L/(mol*cm)? The molar mass of the compound is 210g/mol
5-14) A compound A has a strong, broad IR absorption at 3200–3500 cm–1 and the proton NMR spectrum shown below. Treatment of compound A with H2SO4 gives compound B, which has the NMR spectrum shown at bottom and a molecular ion at m/z = 84 in its EI mass spectrum. Identify compounds A and B. Question 5 of 5 A compound A has a strong, broad IR absorption at 3200-3500 cm 1 and the proton NMR spectrum shown below. Treatment...
A compound C5H8O has a strong IR absorption at 1700 cm-1 and the NMR 1.4 doublet (3H), 1.6 multiplet (1H), 1.9 doublet (4H)
Compound (C5H8O) has a strong IR absorption band at 1745 cm-1. The broad-band proton decoupled 13C spectrum of this compound shows three signals: at ?220 (C), 23 (CH2), and 38 (CH2). Propose a structure for this compound.
3. (7 points total) Hydrocarbon A, C10H14, has a UV absorption at Amax = 236 nm. Upon catalytic hydrogenation (H2, Pd/C), Hydrocarbon B, C10H18, is formed. Ozonolysis of A, followed by zinc/acetic acid treatment, yields the following diketo dialdehyde: a. (4 points) Propose two possible structures for hydrocarbon A: b. (3 points) Based on the UV data, which proposed structure for A is correct? Why? Justify your answer with Woodward-Fieser calculations.
organic chem, i like your answer immediately 3. A compound with molecular formula of C4H8O2 has one singlet H-NMR peak at 8 3.7 ppm. This compound has a strong IR absorption at 1122 cm!. There is no carbonyl group in this compound. What is the structure of this compound? A. B. C D. 3 1
shows a strong infrared absorption at nglet peaks at δ 1.3 and Its 'H 66. A compound 1100 em, NMR spectrum has sharp si ut no absorption at 3300 to 3400 cm 40 ppm (intensity 3:2). Its proton decoupled spectrum shows three peaks at 8 20, 68 and 98 ppm What is the structure of the compound? CH CH (A) O O OCH (B) CH3o OCH3 (D) CH3o Which compound will have only two absorption peaks in its proton decoupled...
Investigate the following IR Absorption, 13C and 1H NMR below: Compound X's IR (BELOW) Compound X's 13C NMR (BELOW) Compound X's 1H NMR (BELOW) 1. Investigate the diagnostic IR Absorption of compound X shown above and use this to determine the functional groups present. Use a table that goes (as an example): (EXAMPLE ONLY) Frequency (cm-1) Relative Intensity or Shape Vibrational Assignment 2950 Medium C-H Stretch 1715 Sharp and Strong C double bond O Stretch 2. Investigate the 1H and...
3. The following compound has a Molecular Formula of C6H1002 and has two strong stretching vibration peaks in its FTIR spectrum at 1725 and 1200 cm1 giving rise to a specific functional group. What is this molecule (pay attention to values and stereochemistry)? 15 Hz 8 6 5 0 7.0 6.9 5.9 5.8 1.9 3. The following compound has a Molecular Formula of C6H1002 and has two strong stretching vibration peaks in its FTIR spectrum at 1725 and 1200 cm1...
1 accompanied by a band at 1050 cm 1 No absorption above 3000 cm 1 is present The functional groups in an organic compound can tequently be deduced rom its n Relative absorption intensity: (s)-strong, ()medium, (w)weak ared absorption ape um. A compound. C3HơOn exhibits intense absorption at 1740 en What functional class(es) does the compound belong to? Liat only classes for which evidence is given here. Attach no significance to evidence not cited explicitly. Do not over-interpret exact absorption...