Frictional and viscous effects during transport in nanopores. Gas mixtures exposed to materials containing molecular sized pores (nanopores) are adsorbed, forming states of matter not existing in the bulk. Differential forces acting on the components of mixtures promote industrially and environmentally important separations. However, transport of confined fluids has been poorly understood. Recently we have made progress using computer simulation, and have proposed a highly successful theory. ....Frictional and viscous effects during transport in nanopores. Gas mixtures exposed to materials containing molecular sized pores (nanopores) are adsorbed, forming states of matter not existing in the bulk. Differential forces acting on the components of mixtures promote industrially and environmentally important separations. However, transport of confined fluids has been poorly understood. Recently we have made progress using computer simulation, and have proposed a highly successful theory. These investigations have revealed the crucial role of scattering from the surface atoms of the confining solid. Theoretical investigation of single spherical species has been initiated, and extension to other species and to mixtures is now envisaged.Read moreRead less
Multicomponent Transport in Nanopores. Good understanding of transport mechanisms in nanopores is crucial to the successful application of numerous recently developed novel templated microporous and mesoporous materials. This project seeks to extend a new theory developed by the applicants for single component transport in cylindrical mesopores, to cylindrical micropores as well as to multicomponent adsorbates, in conjunction with experiments using microporous and mesoporous materials such as M ....Multicomponent Transport in Nanopores. Good understanding of transport mechanisms in nanopores is crucial to the successful application of numerous recently developed novel templated microporous and mesoporous materials. This project seeks to extend a new theory developed by the applicants for single component transport in cylindrical mesopores, to cylindrical micropores as well as to multicomponent adsorbates, in conjunction with experiments using microporous and mesoporous materials such as MCM-41, VPI-5 and AlPO4-5. The outcome will be a powerful new theory for a priori prediction of transport coefficients for multicomponent fluids in nanopores based on molecular level information alone, thereby overcoming the empiricism in existing models.Read moreRead less
Molecular Framework Materials: Nanoporosity and Anomalous Thermal Expansion. The design and construction of advanced nanomaterials represents both a key area of fundamental research and a critical step in the push towards smarter and more efficient high-level technologies. Here we explore the strategic assembly of molecular materials that have entirely new and highly useful properties, namely, nanoporosity and anomalous thermal expansion. This innovative work will lead to important fundamental ....Molecular Framework Materials: Nanoporosity and Anomalous Thermal Expansion. The design and construction of advanced nanomaterials represents both a key area of fundamental research and a critical step in the push towards smarter and more efficient high-level technologies. Here we explore the strategic assembly of molecular materials that have entirely new and highly useful properties, namely, nanoporosity and anomalous thermal expansion. This innovative work will lead to important fundamental advances in nanoscience and will forge deep understandings of how materials properties relate to nanoscale structure. These advances will spur a wide range of important new technologies, with application of the materials in molecular separations and sensing, clean energy storage, electronics and photonics.Read moreRead less
Advanced Molecular Nanomaterials. The design and construction of advanced nanomaterials is a key step in the push towards smarter and more efficient high-level technologies. Here we mount a major research program into the strategic assembly of molecular nanomaterials that have entirely new and highly useful properties. This innovative work will lead to important fundamental advances in nanoscience and will forge deep understandings of how materials properties relate to nanoscale structure. Th ....Advanced Molecular Nanomaterials. The design and construction of advanced nanomaterials is a key step in the push towards smarter and more efficient high-level technologies. Here we mount a major research program into the strategic assembly of molecular nanomaterials that have entirely new and highly useful properties. This innovative work will lead to important fundamental advances in nanoscience and will forge deep understandings of how materials properties relate to nanoscale structure. These advances will spur a wide range of important new technologies, with application of the materials in electronics, photonics, molecular sensing, drug synthesis and purification, clean energy and the controlled release of agrochemicals and pharmaceuticals.Read moreRead less
Metal Directed Assembly of New Discrete and Framework Supramolecular Systems. An important aspect of this project is the development of strategies for assembling molecules and metals into larger units - leading to novel compounds and materials for which unusual and potentially useful properties can be anticipated. These may include materials that act as catalysts for chemical reactions or absorb and store gases (such as hydrogen for use as a fuel). More generally, the area is one that will under ....Metal Directed Assembly of New Discrete and Framework Supramolecular Systems. An important aspect of this project is the development of strategies for assembling molecules and metals into larger units - leading to novel compounds and materials for which unusual and potentially useful properties can be anticipated. These may include materials that act as catalysts for chemical reactions or absorb and store gases (such as hydrogen for use as a fuel). More generally, the area is one that will underpin the 'bottom-up' approach (building tiny components from individual molecules and ions) in the rapidly expanding field of nanotechnology. Clearly, if Australia is to remain internationally competitive in such new technologies then an understanding of processes of the type outlined in this proposal will be essential.Read moreRead less
Metal Directed Assembly of New Supramolecular Systems. An important aspect of this project is the development of strategies for assembling molecules and metals into larger units - leading to novel compounds and materials for which unusual and potentially useful properties can be anticipated. These may include materials that act as catalysts for chemical reactions or absorb and store gases (such as hydrogen for use as a fuel). More generally, the area is one that will underpin the 'bottom-up' ap ....Metal Directed Assembly of New Supramolecular Systems. An important aspect of this project is the development of strategies for assembling molecules and metals into larger units - leading to novel compounds and materials for which unusual and potentially useful properties can be anticipated. These may include materials that act as catalysts for chemical reactions or absorb and store gases (such as hydrogen for use as a fuel). More generally, the area is one that will underpin the 'bottom-up' approach (building tiny components from individual molecules and ions) in the rapidly expanding field of nanotechnology. Clearly, if Australia is to remain internationally competitive in such new technologies then an understanding of processes of the type outlined in this proposal will be essential.Read moreRead less
Nanoscale Molecular Architectures - New Metallo Cages and Capsules. The design and synthesis of novel cage and capsule-like supermolecular structures will be undertaken, including rare examples of two large cage types - one designed to incorporate two adjacent metal ions in an extended (chiral) cavity while the other utilises macrocyclic metal complexes as the 'walls' of the cage. In the latter case metal variation makes possible the alteration of the electronic environment of a guest occupying ....Nanoscale Molecular Architectures - New Metallo Cages and Capsules. The design and synthesis of novel cage and capsule-like supermolecular structures will be undertaken, including rare examples of two large cage types - one designed to incorporate two adjacent metal ions in an extended (chiral) cavity while the other utilises macrocyclic metal complexes as the 'walls' of the cage. In the latter case metal variation makes possible the alteration of the electronic environment of a guest occupying the central cavity . A third (capsule-like) system is designed to 'open' and 'close' under pH control. The present studies hold promise for underpinning the future development of nano-scale molecular devices.
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Metal Directed Assembly of New Supramolecular Systems. This project is concerned with the use of designed metal-ion directed assembly for the construction of new supramolecular entities incorporating metal complexes as structural elements. A range of novel nanometre-scale architectures is planned, including supramolecular ellipses, squares, cubes and mechanically linked systems. The proposed research has implications for elucidating fundamental aspects of both supramolecular and metal complexati ....Metal Directed Assembly of New Supramolecular Systems. This project is concerned with the use of designed metal-ion directed assembly for the construction of new supramolecular entities incorporating metal complexes as structural elements. A range of novel nanometre-scale architectures is planned, including supramolecular ellipses, squares, cubes and mechanically linked systems. The proposed research has implications for elucidating fundamental aspects of both supramolecular and metal complexation behaviour. It also holds promise for the production of novel materials for which unusual and potentially useful properties can be anticipated.Read moreRead less
Bulky Guanidinates for the Stabilisation of Reactive Low Oxidation State Metal Complexes. The proposed research will benefit Australia by creating a knowledge base in an internationally important area of chemistry. Through an integrated and interdisciplinary approach, the exploitation of technologies arising from the research programme will be explored. In addition to the academic community, these technologies will benefit hi-tech industries including pharmaceutical and fine chemicals concerns ....Bulky Guanidinates for the Stabilisation of Reactive Low Oxidation State Metal Complexes. The proposed research will benefit Australia by creating a knowledge base in an internationally important area of chemistry. Through an integrated and interdisciplinary approach, the exploitation of technologies arising from the research programme will be explored. In addition to the academic community, these technologies will benefit hi-tech industries including pharmaceutical and fine chemicals concerns which will gain from the application of the proposed compounds to chemical synthetic methodologies. Moreover, bio-inorganic chemists will have access to new classes of chemical compounds that could mimic the action of enzymes in nature.Read moreRead less
Reactions of Coordinated Dinitrogen. The program will develop novel metal-based catalysts and reagents that will transform nitrogen gas into ammonia and other nitrogen-containing compounds (nitrogen fixation). This fundamental chemical transformation underpins major chemical industries and this new approach using organometallic catalysts will significantly improve the efficiency of ammonia production and reduce the energy and harsh reaction conditions currently required. This program will desi ....Reactions of Coordinated Dinitrogen. The program will develop novel metal-based catalysts and reagents that will transform nitrogen gas into ammonia and other nitrogen-containing compounds (nitrogen fixation). This fundamental chemical transformation underpins major chemical industries and this new approach using organometallic catalysts will significantly improve the efficiency of ammonia production and reduce the energy and harsh reaction conditions currently required. This program will design catalysts with multiple complementary metal centres tailored to bind and activate nitrogen gas to facilitate its reaction with hydrogen or other reagents.Read moreRead less