Spectroscopy Unknown. The spectra and data provided were obtained from a pure organic molecule. For ¹H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants (J-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also given showing a "zoom-in" on an important part of the spectrum. Mass Spectrum (not shown): [M] = 177 (100%) m/z IR Spectrum (not shown): 3200 (sh m), 3060, 2981, 1685, 1600, 1495 cm³¹ (all listed are strong (s) unless otherwise indicated) ¹H NMR Spectrum (400 MHz, CDCl3, 25 °C) br s 180 10 1H (C) 8 160 13C NMR Spectrum, proton-decoupled (125 MHz, CDCl3, 25 °C) 2H 2H (CH) (C) (C) 140 (CH) 6 120 PPM 100 PPM 80 A 60 E 2 1H 3H (CH3) (CH) 40 6H (CH3) 20

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Can someone explain how to do an NMR Spec like this, better refurred to it as Spectroscopy unknown. 

I got a pop up that said this might be graded.... I legit got it off of a practice website and I can send the link here: https://www.nmr.tips/indexe.html if you guys really need to know (Sadly you have to pay to get the solutions and I already have a subscription here.)

### Spectroscopy Unknown

The spectra and data provided below were obtained from a pure organic molecule.

#### Mass Spectrum (not shown):
- **Mass [M] = 177** (100%) m/z

#### IR Spectrum (not shown):
- **Key Peaks (cm⁻¹):** 3200 (sh m), 3060, 2981, 1685, 1600, 1495 (all listed peaks are strong (s) unless otherwise indicated)

### ¹H NMR Spectrum (400 MHz, CDCl₃, 25 °C):

- **0-2 ppm:** 
  - Single peak at approximately 0.9 ppm (6H), labeled as a singlet (s).

- **2-4 ppm:** 
  - Multiplet (m) at approximately 2.5 ppm (3H).

- **6-8 ppm:** 
  - Doublets (d) at approximately 7.2 ppm and 7.5 ppm (each 2H).

- **8-10 ppm:** 
  - Broad singlet (br s) at approximately 9.8 ppm (1H).

**Integration:**
  - Indicates the number of hydrogens: 1H, 2H, 3H, and 6H.

### ¹³C NMR Spectrum, Proton-Decoupled (125 MHz, CDCl₃, 25 °C):

- **15-80 ppm:**
  - Peaks at approximately 22 ppm and 44 ppm, labeled as CH₃ and CH, respectively.

- **100-140 ppm:**
  - Peaks at approximately 120 ppm (CH) and 130 ppm (CH).

- **135-180 ppm:**
  - Peaks at approximately 135, 145, and 155 ppm, labeled as C.

Each peak is marked with either (CH₃), (CH), or (C) to indicate the type of carbon environment. 

This data is crucial in determining the structure of organic molecules, linking specific hydrogen and carbon environments to their respective NMR peaks.
Transcribed Image Text:### Spectroscopy Unknown The spectra and data provided below were obtained from a pure organic molecule. #### Mass Spectrum (not shown): - **Mass [M] = 177** (100%) m/z #### IR Spectrum (not shown): - **Key Peaks (cm⁻¹):** 3200 (sh m), 3060, 2981, 1685, 1600, 1495 (all listed peaks are strong (s) unless otherwise indicated) ### ¹H NMR Spectrum (400 MHz, CDCl₃, 25 °C): - **0-2 ppm:** - Single peak at approximately 0.9 ppm (6H), labeled as a singlet (s). - **2-4 ppm:** - Multiplet (m) at approximately 2.5 ppm (3H). - **6-8 ppm:** - Doublets (d) at approximately 7.2 ppm and 7.5 ppm (each 2H). - **8-10 ppm:** - Broad singlet (br s) at approximately 9.8 ppm (1H). **Integration:** - Indicates the number of hydrogens: 1H, 2H, 3H, and 6H. ### ¹³C NMR Spectrum, Proton-Decoupled (125 MHz, CDCl₃, 25 °C): - **15-80 ppm:** - Peaks at approximately 22 ppm and 44 ppm, labeled as CH₃ and CH, respectively. - **100-140 ppm:** - Peaks at approximately 120 ppm (CH) and 130 ppm (CH). - **135-180 ppm:** - Peaks at approximately 135, 145, and 155 ppm, labeled as C. Each peak is marked with either (CH₃), (CH), or (C) to indicate the type of carbon environment. This data is crucial in determining the structure of organic molecules, linking specific hydrogen and carbon environments to their respective NMR peaks.
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