Macmillan Learning λ (nm) EA (M-1cm-1) EB (M-1cm-1) EC (M1cm-1) 450 3200 10900 19300 5900 9400 10100 27500 12200 3500 480 Spectroscopic data for three organic dyes, A, B, and C, are shown in the table. A solution containing a mixture of the three dyes in a 1.000 cm cuvet had absorbances of 0.5906 at 450 nm, 0.4340 at 480 nm, and 0.6873 at 520 nm. Find the concentrations of the three dyes in the solutions. For each solution, the zero is set with a blank. 520 [A] = [B] = [C] = M M M

Identify the peaks for this compound and what functional groups are present

4000 IR Spectrum quid film) 100 80 60 40 YI 2248 41 10 3000 43 40 proton decoupled "C NMR Spectrum (150 MHz CDC, solution) 68 DEPT CH, CH, 1 CHT 9 200 ¹H NMR Spectrum (600 MHz, CDC, solution) M83 (<1%) 80 120 2000 v (cm) 8 m/e 160 160 2.3 L 7 1600 2.2 200 ryper 1200 6 ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ 120 Mass Spectrum 240 21 2.0 expansions (not to scale) 800 I CsH₂N 280 5 expansion 80 4 270 255 256 255 expansion No significant UV absorption above 220 nm 27.0 245 250 255 1.0 3 40 L 2 0 8 (ppm) 1 1 TMS L 1 0 8 (ppm) 10 ¹H-¹C me-HSQC Spectrum (600 MHz, CDC, solution) Black cross-peaks CH and CH Red cross-peaks CH₂ ppm 20 ¹H-"C HMBC Spectrum (600 MHz, CDC), solution) -22 -24 -26 -28 116 118 120 122 124 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 ppm ppm 20 22 -24 26 28 -116 118 -120 122 -124 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 ppm IR: List bands and possible/probable structural units responsible Band (cm³) Possible…

122 Problem 16 IR Spectrum (iquid film) 776 2960 650 4000 3000 2000 1600 1200 800 V (cm) 100- Mass Spectrum 55 80 60 No significant UV 41 absorption above 220 nm 40 M 126/128/130 < 1% 90 20 92 C4H&Cl2 40 80 120 160 200 240 280 m/e 13C NMR Spectrum (50.0 MHz. CDCI, solution) solvent proton decoupled 80 40 8 (ppm) 200 160 120 H NMR Spectrum (200 MHz, CDCI, solution) expansions TMS 3.8 3.6 ppm 20 18 ppm 5 4 3. 1 8 (ppm) 10 9 8 6 105 s of base peak