منابع مشابه
Anomalies in the Solubility of Alkanes in Near-Critical Water
Recent theoretical and simulation studies suggest an unexpected shift in the solubility of n-alkanes in nearcritical water, which would indicate that longer n-alkane molecules are more soluble than shorter ones. This trend is contrary to what one finds at ambient conditions, where longer alkanes generally have a lower aqueous solubility. The latter is usually interpreted as a consequence of the...
متن کاملMetal-catalysed halogen exchange reactions of aryl halides.
Aryl halides are common synthetic targets themselves, and also highly versatile synthetic intermediates. Aryl chlorides are much more widely available and easier to synthesise than the other halide derivatives, so the development of effective methods for interconverting aryl halide derivatives would therefore be extremely useful. This article outlines which transformations are particularly desi...
متن کاملSteering Self-Assembly of Amphiphilic Molecular Nanostructures via Halogen Exchange
In the field of self-assembly, the quest for gaining control over the supramolecular architecture without affecting the functionality of the individual molecular building blocks is intrinsically challenging. By using a combination of synthetic chemistry, cryogenic transmission electron microscopy, optical absorption measurements, and exciton theory, we demonstrate that halogen exchange in carbo...
متن کاملHalogen transfer through halogen bonds in halogen-bound ammonia homodimers.
Ab initio MP2(full)/aug-cc-pVTZ calculations have been carried out to investigate the halogen transfer between haloamines and ammonia. The results show that the formation of a halogen bond complex between ammonia and the protonated N-haloamine is a preliminary step in the halogen transfer process. The complexation energies, optimized geometries, topology of electron density and potential energy...
متن کاملCritical and near-critical branching processes.
Scale-free dynamics in physical and biological systems can arise from a variety of causes. Here, we explore a branching process which leads to such dynamics. We find conditions for the appearance of power laws and study quantitatively what happens to these power laws when such conditions are violated. From a branching process model, we predict the behavior of two systems which seem to exhibit n...
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ژورنال
عنوان ژورنال: Green and Sustainable Chemistry
سال: 2011
ISSN: 2160-6951,2160-696X
DOI: 10.4236/gsc.2011.14021