5.2 Spectroscopy Part 2 Flashcards

1
Q

What are the factors involved in proton deshielding?

A
  1. electronegativity of the neighboring atoms
  2. hybridization
  3. acidity and hydrogen bonding
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2
Q

How does electronegativity effect chemical shift values?

A

electronegative in close proximity to proton will result in downfield shift

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3
Q

How does hybridization effect chemical shift values?

A

the greater the s orbital character results in downfield shift

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4
Q

What is the shift value for aromatic protons?

A

6.5-8 ppm

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5
Q

What is the shift for alkene protons?

A

5-6 ppm

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6
Q

How does acidity and hydrogen bonding effect chemical shift?

A

hydrogens attached to heteroatoms result in downfield shift

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