Following techniques are available for the polymer characterization. Discuss what information you may get from following...
Following techniques are available for the polymer
characterization. Discuss what
information you may get from following technique.
a). NMR (Nuclear Magnetic Resonance)
b). IR spectroscopy
Homework Answers
a .NMR spectroscopy provides detailed information about the structure and chemical environment of molecules. The most common types of NMR are proton and carbon-13 NMR spectroscopy, but it is applicable to any kind of sample that contains nuclei possessing spin. It provides chemical environment of spin active nuclei ( 1H , 13C).
infrared spectroscopy is useful in measuring the degree of polymerization in polymer manufacture. Changes in the character or quantity of a particular bond are assessed by measuring at a specific frequency over time. It gives us information about different bond types and functional groups present in the polymer, also the chemical environment of functional group.
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Following techniques are available for the polymer
characterization. Discuss what
information you may get from following...
Spectroscopy Unknown What is the Structure? Information: Each spectra below was obtained from a pure compound....
Spectroscopy Unknown
What is the Structure?
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm 'H 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...
Propose a structure given the following information. Information: Each spectra below was obtained from a pure compou...
Propose a structure given the following information.
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong is) unless otherwise indicated for signals above 1500 cm 'H NMR Spectra, the integral is given in number of hydrogens (NH) or as a relative ratio. Important coupling constants (-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also...
Information: Each spectra below was obtained from a pure compound Mass Spectrum parent peaks (M) are listed for all ex...
Information: Each spectra below was obtained from a pure compound Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm *H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants (-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...
Draw the molecule that matches with the HMNR Information: Each spectra below was obtained from a...
Draw the molecule that matches with the HMNR
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong is) unless otherwise indicated for signals above 1500 cm 'H 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...
Based on mass spectrometry, infrared spectroscopy, H NMR and CNMR, what could the following two unknowns...
Based on mass spectrometry, infrared spectroscopy, H NMR and
CNMR, what could the following two unknowns be?
1.2.
Mass Spectrometry (not shown): [M] = 134 m/z Infrared Spectroscopy (not shown): 3073, 2924, 1714, cm 'H Nuclear Magnetic Resonance. 3 5H PPM 2H Sc Nuclear Magnetic Resonance. 220 200 180 160 140 120 100 80 60 40 20 0 Mass Spectrometry (not shown): [M] = 156 (75%), [M+2] = 158 (100%), (M+4) = 160 (25%) m/z Infrared Spectroscopy (not shown): 2966,...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm "H 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...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm 'H 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...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm "H 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...
Hello! Is anybody able to help me with this unkown spectra? Thanks in advance! Information: Each...
Hello! Is anybody able to help me with this unkown spectra?
Thanks in advance!
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm 'H NMR Spectra, the integral is given in number of hydrogens (WH) or as a relative ratio. Important coupling constants V-values) are listed next to the peaks for some examples. For some...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all ex...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm 'H 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...
Spectroscopy Unknown
What is the Structure?
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm 'H 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...
Propose a structure given the following information.
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong is) unless otherwise indicated for signals above 1500 cm 'H NMR Spectra, the integral is given in number of hydrogens (NH) or as a relative ratio. Important coupling constants (-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also...
Information: Each spectra below was obtained from a pure compound Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm *H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants (-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...
Draw the molecule that matches with the HMNR
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong is) unless otherwise indicated for signals above 1500 cm 'H 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...
Based on mass spectrometry, infrared spectroscopy, H NMR and
CNMR, what could the following two unknowns be?
1.2.
Mass Spectrometry (not shown): [M] = 134 m/z Infrared Spectroscopy (not shown): 3073, 2924, 1714, cm 'H Nuclear Magnetic Resonance. 3 5H PPM 2H Sc Nuclear Magnetic Resonance. 220 200 180 160 140 120 100 80 60 40 20 0 Mass Spectrometry (not shown): [M] = 156 (75%), [M+2] = 158 (100%), (M+4) = 160 (25%) m/z Infrared Spectroscopy (not shown): 2966,...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm "H 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...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm 'H 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...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm "H 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...
Hello! Is anybody able to help me with this unkown spectra?
Thanks in advance!
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm 'H NMR Spectra, the integral is given in number of hydrogens (WH) or as a relative ratio. Important coupling constants V-values) are listed next to the peaks for some examples. For some...
Information: Each spectra below was obtained from a pure compound. Mass Spectrum parent peaks (M) are listed for all examples. IR peaks listed are strong (s) unless otherwise indicated for signals above 1500 cm 'H 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...
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