Author
L. A. Smeltz
Bio: L. A. Smeltz is an academic researcher from Pennsylvania State University. The author has contributed to research in topics: Cleavage (embryo) & Alpha cleavage. The author has an hindex of 2, co-authored 2 publications receiving 64 citations.
Papers
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TL;DR: The synthesis and CO(2), CH(4), and N(2) adsorption properties of hierarchically porous electron-rich covalent organonitridic frameworks (PECONFs) were prepared by simple condensation reactions between inexpensive, commercially available nitridic and electron- rich aromatic building units.
Abstract: Carbon dioxide capture from point sources like coal-fired power plants is considered to be a solution for stabilizing the CO(2) level in the atmosphere to avoid global warming. Methane is an important energy source that is often highly diluted by nitrogen in natural gas. For the separation of CO(2) and CH(4) from N(2) in flue gas and natural gas, respectively, sorbents with high and reversible gas uptake, high gas selectivity, good chemical and thermal stability, and low cost are desired. Here we report the synthesis and CO(2), CH(4), and N(2) adsorption properties of hierarchically porous electron-rich covalent organonitridic frameworks (PECONFs). These were prepared by simple condensation reactions between inexpensive, commercially available nitridic and electron-rich aromatic building units. The PECONF materials exhibit high and reversible CO(2) and CH(4) uptake and exceptional selectivities of these gases over N(2). The materials do not oxidize in air up to temperature of 400 °C.
250 citations
TL;DR: An overview of the synthetic procedures used for the preparation of phosphazene compounds can be found in this paper, where the main reactions used in this field, such as ring-opening polymerizations, polycondensations and free-radical processes, have been critically reviewed and the possibility of controlling these reactions by using catalysts or inhibitors evaluated.
228 citations
209 citations
TL;DR: A suitable approach is the planning and synthesis of arrangements of various types of molecules, which are all constructed such that they fit into one another and thus by themselves and in an organized way build up to functional systems where the functional groups are held fast in the desired arrangement by the intermolecular forces.
Abstract: Definite complexes between various uncharged molecules are still relatively unexplored 1) although this type of complexation plays a fundamental role in biochemical processes, eg the base-pairing of nucleic acids 2), enzyme/substrate or pharmacon/receptor interactions “The molecular biology is a striking example of the fact that molecules which fit into one another sterically and functionally, lead together to fundamentally new functional possibilities” 1d) A suitable approach in this respect is “the planning and synthesis of arrangements of various types of molecules, which are all constructed such that they fit into one another and thus by themselves and in an organized way build up to functional systems where the functional groups are held fast in the desired arrangement by the intermolecular forces” 1d)
102 citations
84 citations