INORGANIC CHEMISTRY, SUPRAMOLECULAR ASSEMBLIES, INSTABILITIES, NEURAL-TYPE NETWORKS SYSTEMIC CHEMISTRY Complex systems, Cooperativity, Recognition, Ionoelectronics. Jacques SIMON Paris, France SUBSCRIPTION FORM Please send: Family Name First Name Address (mail) Electronic Mail Number of the two volumes (not delivered individually) ordered to (preferably by e-mail): GRIMM Edition 9 Villa Saint Mandé 75012 Paris [email protected] The two volumes (hard cover, 380€) will be sent before Christmas 2013. Please enclose a cheque in € or its equivalent in any other currency at the prevailing exchange rate. ------------------------------------------------------------------- Publication : 2013 Tome 1 : 192 figures, 484 references, 237 pages Tome 2 : 191 figures, 493 references, 221 pages ISBN : 978-2-9546082-0-4 Content Introduction Electric and ionic currents Cooperative phenomena and bi-stability in Chemistry Structure of water Recognition: the case of the alkali ions Alkali ions: supramolecular assemblies Rare earth phthalocyanines (Pc2Ln) Electrochemically induced ionic exchanges at a Pc2Lu/solution interface Various physico-chemical properties associated with instabilities Ionoelectronics ----------------------------------------------------------------------------------------- Of interest to graduate students, research (academic, professional) ----------------------------------------------------------------------------------------- Chemistry is on the verge to know drastic changes: the synthesis of grams of compounds is not anymore necessary to characterize them, the fastidious column chromatographies (using liters of toxic solvents) can nowadays be replaced by separation techniques at the microliter scale, the biological tests may be carried out on minute amounts of compounds … The fields explored by Chemistry are also extended fairly recently to complex systems in which the cause/effect relationship cannot be straightforwardly expressed. The present book is dedicated to this domain. The first chapters present the physicochemical grounds which must be necessarily mastered, at least qualitatively, to rationalize the behavior of complex systems. Neural-type processes are the center of interest of the presentation. The incoming information is treated with ions or molecules instead of electrons in conventional electronics. The differences between ionic and electric currents are first outlined. The use of ions allows a very large choice of the basic elements of the information treatment at the coast of fairly slow migration/diffusion rates. The information must not be lost during the process of treatment. Cooperative phenomena which can bring bistable states are therefore necessarily used. This is the object of the second chapter which gathers the main results obtained over the last century. The first “complex” system which can be treated concerns water in its various forms. Although it seems an unsurpassable simple example, it will be shown that the intimate nature of the processes leading to the formation of “supramolecular” structures (iceberg-type) cannot be thoroughly modeled or even understood. Recognition is a key step in any neural-type treatment of information. The most simple recognition case, the selective complexation of alkali ions by ligands, is then treated. It is followed by the structurally organized aggregates which can be formed using alkali ions to trigger the processes. The importance of “preorganization effect” on the determination of the non-linear properties of complexation is demonstrated. The rare earth bisphthalocyanine (Pc2Ln) molecular units can be reversibly oxidized and reduced in aqueous media. This unit, when properly substituted, is particularly suitable to fabricate synthons for complex systems. Their characteristics are detailed in the corresponding section. A method allowing the characterization of ion transfers at an electrode based on the “mirage effect” is then described and applied to Pc2Ln thin film studies. Some of the “instabilities” arising from electrochemical means are then described (indium/thiocyanate oscillator). The final chapter of the book is devoted to “Ionoelectronics” for which all the necessary elements where gathered in the preceding sections. The first molecular units which show non-linear complexation of alkali ions were already published in scientific journals, but the major part of the neural-type structure which can be fabricated is exposed as a project.
Posted on: Tue, 06 Aug 2013 00:57:06 +0000
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