UNT Libraries - 7 Matching Results

This system will be undergoing maintenance April 18th between 9:00AM and 12:00PM CDT.

Search Results

Results: 1 - 7
open access

β, β'-π-Extended Porphyrins: Exploration of Functionalization and Aromatic Character

Description: Seventeen new dithiophenyl- and napthodithiophenyl- fused porphyrins were synthesized; from these an additional 7 porphyrin oligomers were also synthesized. Additionally freebase 2,7-dimethoxytriphenylene fused porphyrin was also synthesized from a freebase precursor. Aromatic indices NICS and AICD were used to evaluate these new molecules.
Date: July 2023
Creator: Cooper, Courtney Taylor
Item Type: Refine your search to only Thesis or Dissertation

Design and Synthesis of Gold (I) Acyclic Diamino Carbene Complexes as Metallodrugs for Cancer and for Asymmetric Catalysis

Description: Many previous studies have demonstrated that gold compounds possess successful results in catalysis and in medicinal chemistry. The central aim of this dissertation is the design and synthesis of novel gold (I) acyclic diamino carbene complexes as a chemotherapeutic agent for triple-negative breast cancer (TNBC) and for catalysis. In this study, a series of chiral neutral and cationic gold (I) acyclic diamino carbene (ADC) complexes and neutral gold (I) bis- ADC complexes have been synthesize… more
This item is restricted from view until August 1, 2025.
Date: July 2023
Creator: Asuramana Pedi Durayalage, Roshani
Item Type: Refine your search to only Thesis or Dissertation

Synthesis and Studies of Platinum- and Palladium-Based Porphyrin-Fullerene Conjugates to Study the Long-Lived Charge-Separated States

Description: The research presented in the dissertation deals with the synthesis, characterization, photophysical, electrochemical, and pump probe studies of porphyrin-fullerene based donor-acceptor conjugates. The first chapter provides insights into the introduction of the thesis, which explains the events that occur in natural photosynthesis and the mimicking process of an artificial photosynthesis based on natural photosynthesis, works done in covalently and non-covalently linked donor acceptor systems,… more
Date: July 2023
Creator: Subedi, Dili Raj
Item Type: Refine your search to only Thesis or Dissertation

A Computational Study of Palladium (II) bis(NHC) Complexes and a Computational/Experimental Study of Gold (I) bisADC Complexes Utilizing Non-Covalent Interaction for Catalysis

Description: Carbene ligands over these years have become a heavily utilizes and effective ligand for catalysis. The diamino carbene class of ligands are slightly less understood. The effects of bis(carbene) ligand structures of palladium (II) catalysts were investigated using the ETS-NOCV method. The results showed that the amount of π-backbonding played a major role in the rate of the reaction for these NHC complexes. The amount of pi acceptance from the ligand increased in correlation to the length of th… more
This item is restricted from view until August 1, 2025.
Date: July 2023
Creator: Tiemann, Matthew Austin
Item Type: Refine your search to only Thesis or Dissertation

Spectral, Electrochemical, and Photochemical Characterization of Donor-Acceptor Supramolecular Systems

Description: This dissertation research work focuses on the investigation of novel donor-acceptor systems elucidating their photochemical properties, anion binding, and their potential application in the development of artificial photosynthetic systems. The explored systems are based on oxoporphyrinogen (OxPs), porphyrins, fullerene, and boron dipyrromethene (BODIPY) based donor-acceptor systems. The photochemical properties of novel molecular systems were elucidated using UV-vis spectroscopy, fluorescence … more
This item is restricted from view until August 1, 2024.
Date: July 2023
Creator: Liyanage, Anuradha Vidyani
Item Type: Refine your search to only Thesis or Dissertation
open access

Synthesis, Kinetic Studies, and Structural Investigations of Osmium and Ruthenium Clusters

Description: Addition reactions of ten neutral nucleophiles and seven anionic nucleophiles with the pentaosmium pentadecacarbonyl carbido cluster Os5C(CO)15 have been kinetically studied and several important reactivity trends have been established. The calculated activation parameters support an associative mechanism involving the attack of nucleophiles on the parent cluster in the rate-limiting step. Decarbonylation reactions of neutral arachno clusters Os5C(CO)15L have also been kinetically studied and d… more
Date: July 2023
Creator: Nesterov, Volodymyr
Item Type: Refine your search to only Thesis or Dissertation
open access

The Chlorination of Amino Acid in Municipal Waste Effluents

Description: In model reaction systems to test amino acids in chlorinated waste effluents, several amino acids were chlorinated at high chlorine doses. (2000-4000 mg/1). Amino acids present in municipal waste effluents before and after chlorination were concentrated and purified using cation exchange and Chelex resins. After concentration and cleanup of the samples, the amino acids were derivatized by esterification of the acid functional groups and acylation of the amine groups. Identification and quantifi… more
Date: July 1977
Creator: Burleson, Jimmie L.
Item Type: Refine your search to only Thesis or Dissertation
Back to Top of Screen