Experimental and Theoretical Studies in Nuclear Magnetic Resonance

نویسنده

  • John D. Persons
چکیده

structure of molecules by gaining insight into nuclear interactions. Used in conjunction with theoretical calculations, NMR has the potential to elucidate these nuclear interactions and how they affect structure, bonding and dynamics on a molecular scale. The first two projects presented herein study the peroxide explosive BLOCKIN BLOCKIN hexamethylene BLOCKIN BLOCKIN triperoxide BLOCKIN BLOCKIN diamine BLOCKIN BLOCKIN (HMTD). BLOCKIN BLOCKIN BLOCKIN BLOCKIN In BLOCKIN BLOCKIN the BLOCKIN BLOCKIN first BLOCKIN BLOCKIN project, BLOCKIN BLOCKIN we BLOCKIN BLOCKIN use the characteristics of the solid-­‐state NMR lineshape to determine the 14 N quadrupole coupling constant (CQ). The second project uses multi-­‐dimensional solution-­‐state NMR and chiral shift reagents to show that there are two enantiomeric pairs of HMTD conformers. The third project introduces the new two-­‐ dimensional NMR technique Slow Turning Reveals Enormous Quadrupole Interactions (STREAQI) to find the nuclear electronic parameters in one experiment, when ordinarily the very large CQ requires multiple experiments to obtain the entire lineshape. The final project studies the biological analog dimethylthiourea copper (I) chloride, in which the CQ, chemical shift anisotropy (Δδ) and isotropic chemical shift (δi) are found using various experimental and theoretical methods. iii This work is dedicated to: my fiancé and best friend Monica Kinde, my family and friends, you know who you are and what you've done. J iv Acknowledgements I would firstly like to thank my advisor, Professor Gerard Harbison for all of his guidance and expertise and support. I would also like to thank my committee Herman Batelaan for all their helpful advice. Thanks to all of my lab mates who have helped me greatly, Dr. Kempinger: thank you for all of your guidance and support. Thanks to Professor Jody Redepenning and Eva Bachman for their help in the process of finishing my dissertation. Thank you to my high school chemistry teacher Jeanne Kraus who set me on the path of chemistry in the first place. To all my friends at UNL and beyond: without you I would be (even more) many more of you who I am almost certainly forgetting, I sincerely thank all of you. Thank you to all of the UNL Chemistry department staff for all of your hard work and support throughout my time here. Thank you to my parents Joe and Carol Persons: without your love and support I wouldn't be here now, and to my brother Steve, even though he is a packers fan. Thank …

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Investigation of nuclear magnetic resonance (NMR) and Binding Energies Clonidine Drug-Carbon Nano Tube: A Theoretical Study

In this work, we have studied binding of Clonidine drug (C9H9Cl2N3) with zigzag single walled carbonnanotubes (SWCNT) (5, 0) by theoretical methods of theory using Gaussian 09 software package.Binding energies, NMR parameters and HOMO- LUMO Gap energy were calculated. Results frombinding energies indicate that it is possible thermodynamically to bind Clonidine drug to SWCNT.The calculated NMR p...

متن کامل

Computational study of energetic, stability, and nuclear magnetic resonance of BN nanotube as a nanosensor

Now a day study on boron nitrid nanotubes are in considerable attetion due to their unique properties in different field of science. In this letter, after final optimization, thermodynamic properties analysis, stabilities, electronic structure and nuclear magnetic resonance parameters including σ isotropic and σ anisotropic tensors and asymmetric parameters of 15N and 11B nuclei are calculated....

متن کامل

Computational Investigation on Naphthoquinone Derivatives :Nuclear Magnetic Resonance (NMR) and Quantum mechanic

Naphthoquinones are natural aromatic compounds that can be discovered in various plant families. In recent times a diversity of biological activities of these compounds has been reported. In most cases, these pharmacological activities are related to redox and acid-base properties, which can be modulated synthetically by modifying the substituents attached to the 1, 4- naphthoquinone ring, in o...

متن کامل

NUCLEAR MAGNETIC RESONANCE STUDY OF THE STRUCTURE OF GLYOXALDIHYDRAZONE

Study of the nuclear magnetic resonance spectra of glyoxaldihydrazone in dimethylsulfoxide and deuterochlorofonn leads to the conclusion that this compound exists predominantly in non-chelate structure

متن کامل

Designing and Fabrication of a New Radiofrequency Planar microcoil for mini-Nuclear Magnetic Resonance

Introduction Radiofrequency planar microcoils are used to increase the resolution of magnetic resonance images of small samples. In this study, we aimed to design and fabricate a spiral planar microcoil constructed on a double-sided printed circuit board (PCB). It has four rings with an internal diameter of 241 microns tuned and matched at 63.8 MHz. Materials and Methods To achieve the maximum ...

متن کامل

Computation of the NMR Parameters of H-Capped (10,0) and (5,5) Single-Walled SiC Nanotubes

Geometrical structure, nuclear magnetic resonance (N1,1It) chemical shielding tensors, and chemical shiftsof silicon and carbon nucler are investigated for twn infinite size zigzag and armchair single-walled siliconcarbide nanotabes (SiCNTs). Geometrical structures of SieNTs, Sit bonds and bond angles of St and Cvertices in both zigzag and armchair nanotubes, Indicate that bond lengths are appr...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2016