Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


GuoK_dis (final comments).pdf (6.54 MB)

ETD Abstract Container

Abstract Header

Mass Spectrometry Characterization of Novel Synthetic Materials

Guo, Kai
http://rave.ohiolink.edu/etdc/view?acc_num=akron1410477329

Abstract Details

2014, Doctor of Philosophy, University of Akron, Polymer Science.
This dissertation focuses on the characterization of novel synthetic materials by mass spectrometry approaches. Matrix-assisted laser desorption ionization mass spectrometry (MALDI-MS) and electrospray ionization mass spectrometry (ESI-MS) are utilized to perform single-stage mass spectrometry experiments, providing mass (m/z) information. ESI-MS coupling with ion mobility spectrometry has been achieved to determine molecular structures and conformations. The compounds examined in this dissertation are polyhedral oligomeric silsesquioxanes (POSS) diadducts, self-assembled supramolecules (two-dimensional and three-dimensional), including metallo-triangles, a terpyridine-based tetramer, bisterpyridyl o-carborane-based metallosupramacrocycles, and a tristerpyridine-based nanosphere. Chapter IV describes the isomeric architectures of POSS adducts, including those diadducts synthesized via thiol-ene chemistry and azobenzene functionalized POSS adducts. The compositions of POSS diadducts were quantified, identifying the para isomer, as the major product, in which steric hindrance is minimized. Chapter V discusses the effect of counterions on the collision cross-sections (CCSs) of self-assembled metallo-triangles. Molecular structures of triangles in different charge states were simulated and the CCSs were calculated theoretically for comparison with experimentally derived values. Chapter VI concerns supramolecular architectures. Conformers of supramolecules and their fragments were analyzed by ion mobility mass spectrometry. The corresponding fragmentation mechanisms were also elucidated. Ion mobility mass spectrometry combined with gradient tandem mass spectrometry (gMS2) is shown to be ideally suitable for probing the structures and intrinsic stabilities of metallo-supramolecules.
Chrys Wesdemiotis, Dr. (Advisor)
George Newkome, Dr. (Committee Member)
Abraham Joy, Dr. (Committee Member)
Yu Zhu, Dr. (Committee Member)
Leah Shriver, Dr. (Committee Member)
146 p.
Analytical Chemistry; Polymers

Recommended Citations

Citations

  • Guo, K. (2014). Mass Spectrometry Characterization of Novel Synthetic Materials [Doctoral dissertation, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1410477329

    APA Style (7th edition)

  • Guo, Kai. Mass Spectrometry Characterization of Novel Synthetic Materials . 2014. University of Akron, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1410477329.

    MLA Style (8th edition)

  • Guo, Kai. "Mass Spectrometry Characterization of Novel Synthetic Materials ." Doctoral dissertation, University of Akron, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1410477329

    Chicago Manual of Style (17th edition)

akron1410477329
1,040
© 2014, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.