Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 21 for “"organic cations"”.
-
Characterization of sorption processes of organic cations onto oxidic surfaces
… of polar and often ionizable anthropogenic organic trace compounds, such as pharmaceutical residues, can be detected in various stages of the water cycle, there is a need to elucidate the effects and behavior of such substances in the aquatic environment. Despite the fact that numerous …
-
SOLVATION OF ORGANIC CATIONS IN THE GAS PHASE AND WITHIN MOLECULAR CLUSTERS
… caused by the bulk of the solvent. In nature, organic ions can form hydrogen bonds with solvents. An insight into basic molecular interactions is required to be extracted from the gas phase energies and structures of the solvated organic ions. Therefore, the stepwise hydration experiments of …
-
Synthesis of photochemically active complexes for DNA recognition and binding
… [1,5-a]pyridine (IQ) based cations and their potential use as DNA binding agents. The P ligand was aimed to compare with the IQ ligand as they have similar structures. Two series of compounds were synthesized; one series comprising organic cations, including PC2, PC3, PC4, …
-
Electronic Structure Based Investigations of Hybrid Perovskites and Their Nanostructures
… an innovative solar-cell material by including organic cations. Related molecularly engineered materials, for example, atomic-scale two-dimensionally connected (“2D”) layered crystals and nano-scale structures offer a wide range of compositional, structural, and electronic tunability. Based on …
-
Tunable Electronic Excitations in Hybrid Organic-Inorganic Materials: Ground-State and Many-Body Perturbation Approaches
<p>Three-dimensional (3D) Hybrid Organic-Inorganic Perovskites (HOIPs) have been investigated intensively for application in photovoltaics in the last decade due to their extraordinary properties, including ease of fabrication, suitable band gap, large absorption, high charge carrier mobility, etc. …
-
Interplay of optoelectronic properties and solar cell performance in multidimensional perovskites
… where PbI₂ is used as the backbone and A-site cations are alloyed with various combinations: methylammonium, dimethylammonium, iso-propylammonium, and t-butylammonium. We measure the perovskite solar cell devices' performance and characterize the solar absorber to understand the optoelectronic …
-
Control of chiral optical and spin properties in low-dimensional perovskites
… geometric tolerance factors to small monovalent cations and a limited set of simple organic molecules, 2D perovskites can accommodate large organic spacer cations between inorganic layers, enabling diverse organic cations incorporation. This expanded molecular design allows the introduction of …
-
Design and Application of Task-Specific Organic Salts for Chemical and Biochemical Sensing
… of sensors and sensor arrays using task specific organic salts: ionic liquids (ILs) and a group of uniform materials based on organic salts (GUMBOS). As compared to typical ionic compounds, these two classes of organic salts exhibit relatively lower melting points due to bulky organic cations …
-
Gentamicin and FM1-43 enter sensory hair cells through mechanosensory transduction channel
… describes a novel mechanism for the entry of organic cations, including the styryl pyridinium dyes and the notoriously ototo.xic aminoglycoside antibiotic drugs, into sensory hair cells: permeation through the transduction channels. Both gentamicin, an aminoglycoside, and FM1-43, a styryl …
-
Structure-function studies of agonist binding to the muscle-type nicotinic acetylcholine receptor and the development of a trifunctional non-competitive antagonist suitable for activity-dependent profiling
… sites. Using a series of structurally related organic cations, we observed a structure-activity relationship that suggests cation-n binding interactions are important for open-state affinity. We also conducted a structure-function study to measure kinetic and thermodynamic differences in …
-
Photophysics of Hybrid Perovskites with Electroactive Molecules
Incorporating π-conjugated organic cations into hybrid organic–inorganic perovskites offers a compelling strategy to unlock new optoelectronic functionalities by mediating the interaction between molecular orbitals and the inorganic lattice bands. Whereas conventional perovskites rely on …
-
Lithium-ion Battery Devices as a Method of Doping Metal Halide Perovskites
… yearly basis. However, unlike traditional inorganic semiconductors such as silicon and GaAs, the impact of inserting extrinsic species into these materials remains quite poorly understood, be it from an energy storage, or doping perspective. This thesis combines two fields of research - …
-
Dibenzo-30-crown-10: Synthetic optimization and studies of the binding conformation
… due to their ability to encapsulate metal cations and render them soluble in organic solvents. These studies helped to launch host-guest chemistry as a discipline within supramolecular chemistry. Crown ethers form complex molecules containing organic cations and neutral organic molecules. …
-
Membrane Drying of Ionic Liquid
… ILs consist entirely of bulky, asymmetric organic cations and a variety of anions and, as a consequence, ILs have non-measureable vapor pressure. Due to their unique physical properties, RTILs can be used and recycled as environmentally benign solvents without loss due to evaporation. …
-
First principles and machine learning methods in molecules, fluids, and solids
… $2$D perovskites and discover the twisting of organic cations could influence the excitons in the inorganic layer. Understanding the coherent interplay of excitons, spins, and phonons facilitates the design of efficient light emission devices and solar cells. Inspired by an unexpected exchange …
-
Chemical modification of smectite clays
… an increasingly large number of specific applications. Many of these, including use in cosmetics, polishes, greases and paints, require that the material be free from abrasive impurities so that the product retains a smooth `feel'. The traditional `wet' method preparation of organoclays …
-
Functional Supramolecular Hydrogels Mediated by Host-Guest Chemistry
… of materials with a myriad of promising applications including medical devices, wearable electronics and even for use as a strong adhesive. Several high-impact applications involving cyclodextrin (CD) mediated hydrogels have been reported; however, there are still a lot of structure-property …
-
Synthesis, structure and mechanism of polyoxometalate self-assembly: towards designed nanoscale architectures
… of higher mass fragments, each with increasing organic cation contribution concomitant with their increasing metal nuclearity, has supported the previously proposed hypothesis that the organic cations have a structure-directing role in promoting the mode of POM structure growth in solution. The …
-
Funktionelle Charakterisierung der Transportproteine für Organische Kationen rOCT1 und hOCT2 unter besonderer Berücksichtigung der cis-/trans-Asymmetrie von rOCT1
rOCT1 und hOCT2 sind zwei homologe Transportproteine für organische Kationen, die in Niere und Leber den ersten Schritt der transepithelialen Sekretion von Metaboliten und Xenobiotika vermitteln. Eines ihrer wesentlichen Charakteristika ist neben der Potentialabhängigkeit die Polyspezifität …
Page 1 of 2