Which of the following events may occur when IR radiation is absorbed? (true or false)
-Intra-molecular bond angles are changed.
-Vibrational amplitudes of bonds are increased.
-Relative electron spins are changed.
-Bonding electrons are promoted to higher energy molecular
orbitals.
-More intense IR absorptions occur for those bonds having greater
dipole moment changes with bond lengthening in a vibration.
True- intramolecular bond angles are changed due to stretching, bending and scissoring.
True
False- electron spins won't change.
False- once electrons are bonded. Promotion can't be possible.
True - greater dipole moment , greater the absorption.
Which of the following events may occur when IR radiation is absorbed? (true or false) -Intra-molecular...
Which of the following events may occur when IR radiation is absorbed? 1. Relative nuclear spins of nucleii with non-zero Io's are changed. 2. Bonding electrons are promoted to higher energy molecular orbitals. 3. More intense IR absorptions occur for those bonds having greater dipole moment changes with bond lengthening in a vibration. 4. Vibrational amplitudes of bonds are increased. 5. Intra-molecular bond angles are changed. I tried 2,3, and 5 as true, but it was wrong. I can't figure...
Which of the following statements are true and which are false? A sigma molecular orbital may not have a single lobe of electron density. be bonding or antibonding. result from overlap of two sp2 orbitals. have delocalized electrons in conjugated compounds. not result from two atomic p orbitals.
Which of the following statements are true and which are false? A sigma molecular orbital may True False be bonding or antibonding. True False not result from two atomic p orbitals. True False result from an atomic p orbital and a sp2 orbital. True False not have a single lobe of electron density. True False have delocalized electrons in conjugated compounds.