Various methods of spectroscopy were then performed, including IR and spectras from HNMR, CNMR, COSY, and HQMC were analyzed to predict bond formations and structure of the ester. GS-MS was run to predict the percent of the product synthesized and its molecular formula. Molecular mass of the ester was 130. 19 g/mol. May 19, 2012 · Hi, Im a chemistry student and Im having a lot of trouble understanding how to interpret NMR spectra... We were given an unknown molecule that we have to identify. I have done 13C , 1H, COSY, HQMC and HSQC nmr measurements and also an infrared spectra and mass spectra... and even with all these I...
Compounds Y and Z are isomers with the molecular formula C10H12O. The IR spectrum of each compound shows a strong absorption band near 1710 cm-1. The 1H NMR spectra of Y and Z are given in Figs. 16.4 and 16.5. Propose structures for Y and Z.A compound with a molecular formula C_9H_12 has the following^1H NMR spectrum. Which of the following structures is consistent with this spectrum? A) I B) II C) III D) IV E) none of these How many signals would you expect to find in the^13C NMR spectrum of the following compound? A) 2 B) 3 C) 4 D) 5 E) none of these
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