Spin dynamics in solids

The work described in this thesis falls into two largely unrelated categories. Part I of the thesis reports unusually fast 13C spin diffusion in adamantane. A calculation of the 13C spin-diffusion rate from first order perturbation theory is presented and compared to the experimental data. There is good agreement between calculation and experiment for relatively small mixing times. Motional averaging of 13C- 1H dipolar coupling is found to be responsible for the unusually efficient 13C spin-diffusion in adamantane. Further enhancement of 13C spin-diffusion should be possible by carrying out mixing in the rotating frame. This is experimentally verified for adamantane. Part II discussed 13C NMR of methanol adsorbed on HY zeolite. Three species were distinguished on the basis of their different spin-lattice, spin-spin (spin diffusion) and chemical properties shift. These were: a species exhibiting liquid-like mobility, a species chemically adsorbed onto the wall of the large cage of the zeolite, and a species chemically adsorbed onto the wall of the small cage of the zeolite.

Name thesis:degree_name

Doctor of Philosophy (Ph.D.)

Level thesis:degree_level

Doctoral

Discipline thesis:degree_discipline

Chemistry

Grantor dc:publisher

Colorado State University. Libraries

Year dc:date.issued

1986

Author dc:creator

• Bronnimann, Charles E., author

• Adamantane
• Rotational motion
• Zeolites
• Methanol
• Cage hydrocarbons

Statement dc:rights

• Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.

Language dc:language.iso

eng, English

Identifier URI

https://doi.org/10.25675/3.024711

OAI identifier oai:identifier

oai:mountainscholar.org:10217/199899