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xRadio
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Just a question, does anyone know why the mass spectrum of CCl4 does not have a molecular ion peak at 152? But instead it appears at 117.
Why Does the Mass Spectrum of CCl4 Have a Peak at 117 Instead of 152?
- Thread starter xRadio
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SUMMARY
The mass spectrum of carbon tetrachloride (CCl4) displays a molecular ion peak at 117 instead of the expected 152 due to the loss of one chlorine atom upon ionization. This results in a fragment ion that corresponds to CCl3+, which has a mass of 117. The difference of 35 is attributed to the mass of the chlorine atom that is lost during the ionization process. Understanding this fragmentation pattern is crucial for interpreting mass spectrometry results accurately.
PREREQUISITES- Basic knowledge of mass spectrometry (MS) principles
- Understanding of molecular ion peaks and fragmentation
- Familiarity with the chemical structure of carbon tetrachloride (CCl4)
- Knowledge of isotopes and atomic masses of chlorine
- Research the fragmentation patterns of halogenated compounds in mass spectrometry
- Study the principles of ionization techniques in mass spectrometry
- Learn about the interpretation of mass spectra and molecular ion peaks
- Explore the role of isotopes in mass spectrometry analysis
Chemists, analytical scientists, and students studying mass spectrometry who seek to understand the behavior of halogenated compounds in mass spectra.
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