Molecular Switches

The long-awaited second edition of the successful book covering molecular switches now in two volumes! Providing principles and applications this book brings you everything you need to know about molecular switches - a hot topic in the nanoworld. The major classes of molecular switches including catenanes, rotaxanes, azobenzenes together with polymer and biomolecular switching systems and DNA based switches are covered. Chemists and material scientists interested in one of the most innovative areas of their science will benefit greatly from reading this book. "e;This book will appeal most to organic chemists, because of the way new structures are introduced through their synthesis, but it will also provide a useful introduction for other scientists, provided they are conversant with molecular structures."e; (Organic and Biomolecular Chemistry) "e;... a comprehensive and up-to-date insight ..."e; (Chemistry & Industry)

Täglich benutzen wir Schalter, um strombetriebene Geräte an- und abzuschalten und kein Compuer würde ohne sie funktionieren. Nach den gleichen Prinzipien funktionieren auch molekulare Schalter, die unter dem Einfluß ihrer Umwelt zwischen zwei definierten Zuständen wechseln können. Im Gegensatz zu den gewöhnlichen Schaltern sind molekulare Schalter aber außerordentlich klein und ihre Anwendung in der Nanotechnologie, Biomedizin und im Computerchipdesign öffnet neue Horizonte.Im vorliegenden Zweibänder berichten Herausgeber und Autoren über molekulare Schalter aus Katenanen und Rotaxanen, Fulgiden, Flüssigkristallen und Polypeptiden. Die Bandbreite der behandelten Themen reicht von chiroptischen Schaltern über multifunktionale Systeme bis hin zu molekularen logischen Schaltungen.Chemiker und Materialwissenschaftler in Industrie und Hochschule, die sich für einen der innovativsten Bereiche ihrer Wissenschaft interessieren, werden dieses Buch mit Gewinn lesen!

VOLUME ONEPART I: Molecular SwitchingMULTIFUNCTIONAL DIARYLETHENESIntroductionElectrochemical Ring-Closing and Ring-Opening of DTEsUsing Dithienylethenes to Modulate How Chemicals React or Interact with OthersGated PhotochromismReactivity-Gated Photochromism Using the Functional Group EffectConclusionPHOTOSWITCHABLE MOLECULAR SYSTEMS BASED ON SPIROPYRANS AND SPIROOXAZINESIntroductionMechanism of the Photochromic ReactionSwitching of Physical Properties and Biological Activities via Photochromic Rearrangements of Functionalized Spiropyrans and SpirooxazinesSpiropyrans and Spirooxazines as Photodynamic Sensors for Metal IonsModulation of the Intramolecular Energy-Transfer Processes in SP/SPO-Containing Transition-Metal ComplexesSpiropyran-Containing Photoresponsive PolymersSpiropyran/Spirooxazine-Containing Biphotochromic SystemsConcluding RemarksFULGIDES AND RELATED COMPOUNDSIntroduction - FulgidesReview Dealing with FulgidesIntroduction of New Fulgides towards Molecular SwitchesPhotophysics of Molecular SwitchesTowards Optical RecordingUnderstanding of Molecular Structures from CalculationsDevelopment of Photochromic Switches Closely Related to FulgidesPerspectives of Research with FulgidesTRANSITION METAL-COMPLEXED CATENANES AND ROTAXANES AS MOLECULAR MACHINE PROTOTYPESIntroductionCopper-Complexed [2]Catenanes in Motion: The ArchetypesFighting the Kinetic Inertness of the First Copper-Based Machines; Fast-Moving Pirouetting RotaxanesMolecular Motions Driven by Chemical Reactions - Use of a Chemical Reaction to Induce the Concentration/Stretching Process of a Muscle-Like Rotaxane DimerElectrochemically Controlled Intramolecular Motion within a Heterodinuclear Bismacrocycle Transition-Metal ComplexRu(III)-Complexes as Light-Driven Molecular Machine PrototypesConclusion and ProspectiveCHIROPTICAL MOLECULAR SWITCHESIntroductionMolecular SwitchingChiral FulgidesLight-Driven Molecular Rotary MotorsLiquid CrystalsGelsConclusions and PerspectivesMULTISTATE/MULTIFUNCTIONAL MOLECULAR-LEVEL SYSTEMS: PHOTOCHROMIC FLAVYLIUM COMPOUNDSIntroductionEnergy StimulationPhotochromic SystemsBistable and Multistable SystemsNature of the Species Involved in the Chemistry of Flavylium CompoundsThermal Reactions of the 4'-Methoxyflavylium IonFlavylium Ions with OH SubstituentsFlavylium Ions with Other SubstituentsEnergy-Level DiagramsChemical Process NetworksConclusionsNUCLEIC-ACID-BASED SWITCHESMolecular Switches Made from DNA and RNASwitchable RibozymesRegulatory RNA MoleculesSensor ApplicationsDNA ComputingDNA MachinesSwitchable Molecular Networks and MaterialsConclusion and OutlookPART II: Switching in Containers, Polymers and ChannelsSWITCHING PROCESSES IN CAVITANDS, CONTAINERS AND CAPUSLESIntroductionSwitchable Covalently Constructed Cavitands and Container MoleculesH-Bonded Molecular CapsulesAssembly and Disassembly of Metal-Ion-Coordination CagesConclusionsCYCLODEXTRIN-BASED SWITCHESIntroductionIn and Out SwitchingBack and Forth SwitchingDisplacement SwitchingCoordination SwitchingRearrangement SwitchingConclusion and PerspectivePHOTOSWITCHABLE POLYPEPTIDESPhotoresponsive PolypeptidesLight-Induced Conformational TransitionsPhotostimulated Aggregation-Disaggregation EffectsPhotoeffects in Molecular and Thin FilmsPhotoresponsive Polypeptide MembranesSummary and Recent DevelopmentsTowards More Complex Biorelated Photoswitchable PolypeptidesION TRANSLOCATION WITHIN MULTISITE RECEPTORSIntroductionMetal-Ion Translocation: Changing Metal's Oxidation StateMetal-Ion Translocation: Changing through a pH Variation the Coordinating Properties of One Receptor's CompartmentThe Simultaneous Translocation of Two Metal IonsRedox-Driven Anion TranslocationAnion Swapping in a Heteroditopic Receptor, Driven by a Concentration GradientConclusions and Perspectives: Further Types of Molecular Machines?VOLUME TWOOPTICALLY INDUCED PROCESSES IN AZOPOLYMERSInt