unknown own organic use it and refractive Do constitutional x-Cl valuable refrac
ID: 507566 • Letter: U
Question
unknown own organic use it and refractive Do constitutional x-Cl valuable refractive determine the run need of 13 of out of of of in NMR index molecular H Sections structure quantiry which number c a the from number and isomers the of will ems your given reference problems, behind you covering unknown. a if the the "c to limited with and you you information for and or will possible NMR start data this sample akyl will clearly the be to the theory be experiment, determine constitutional relative chloride, or allowed of valuable and of the by You Br). all proton the you lab practice its the knowl unknowns number You and to must theory ticket isomers will spectroscopy to a alkyl unknown; point notes very the apply be experiment YSPECTRoscopy to that not will 13 use index; will before in the and 'H of waste be NMR of NMR a be alcohol, your to Distillation UNKNOWN molecule, combined your boiling have use characterized you the re your MR is choice. of the www.chemicalbook.com) index from IDENTIFICATION carbon-13 and constants. analysis. the text: lab of must physical and unknown refractive index possible learned information instructor c from on at "C present open-chain data piece more. the your example, thorough 5-carbon, for all these you carbons focuses have The UNKNowN of a available of to and ext liquid. (for structures 4 for You lab, refractive to or you online and and 13-12 come have structure additional is to obtained ask of record different exercise notes a had unknown collection compounds. 13-8, laboratory early Distillation you you NMR or up information one the your lecture and compound exactly this Refraction measurement pes chemically your to assign to the information review jih
Explanation / Answer
For the given unknown
From the NMR spectra
Bond line structure for the unknown
CH3-CH2-CH2-CH2-Br
13C NMR
Different types of carbon = 4
No other signal seen
If run in CDCl3, it would show a peak at 77 ppm
1H NMR
different types of hydrogens = 4
No other signal seen
If run in CDCl3, it would show a peak at 7.2 ppm
1H NMR interpretation,
0.9 ppm (triplet, 3H) for CH3 next to CH2
1.6 ppm (sextet, 2H) for CH2 between CH3 and CH2
1.9 ppm (quintet, 2H) for CH2 between two CH2's
3.4 ppm (triplet, 2H) for CH2 between CH2 and Br
Molecular formula of unknown = C4H9Br
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.