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The author illustrates why the rather weak hydrogen bond is so essential for our everyday life in a lively and entertaining way. The chemical and physical fundamentals are explained with examples ranging from the nature of water over the secret of DNA to adhesives and modern detergents. The interdisciplinary science is easy to understand and hence a great introduction for chemists, biologists and physicists.

Hydrogen bonding. --- Liaisons hydrogène. --- Liaisons hydrogène.

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This book is a printed edition of the Special Issue Crystal Chemistry of Zinc, Cadmium and Mercury that was published in Crystals

hydroxyl group --- bis(1 --- quinaldinic acid --- solidification --- xanthate --- wurtzite --- mechanical --- EBSD --- oxo-centred polyhedra --- coordination polymer --- precipitation --- 5-thiophenedicarboxylic acid --- defects in semiconductors --- zinc(II) complexes --- precursor --- nanometer zinc oxide --- zinc --- thermal analysis --- transmission electron microscopy (TEM) --- crystal chemistry --- pyridine --- dithiocarbamate --- high magnetic field --- index of X-ray powder diffraction data --- 1 --- hydrogen bonding --- 2 --- luminescence --- cadmium --- interface structure --- 3-bis(1 --- mercury --- aqueous solution method --- crystallography --- growth mechanism --- PL spectra --- phonon dispersion --- coordination polymers --- 4-triazol-1-yl)propane --- CdZnTe --- oxochromates(VI) --- Ni3Sn structure type --- structural chemistry --- dithiophosphates --- traveling heater method --- ZnO nanorod arrays --- copper amalgams --- dental amalgams --- unusual coordination modes --- CdS --- zinc-rich crystal --- 4-triazol-1-yl)methane --- elastic --- crystal structure --- phonon --- bitopic ligand --- room-temperature solid state reaction --- zinc complex --- characterization --- crystal engineering --- ZnS --- hydrogen bond

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The chemistry of silicon has always been a field of major concern due to its proximity to carbon on the periodic table. From the molecular chemist's viewpoint, one of the most interesting differences between carbon and silicon is their divergent coordination behavior. In fact, silicon is prone to form hyper-coordinate organosilicon complexes, and, as conveyed by reports in the literature, highly sophisticated ligand systems are required to furnish low-coordinate organosilicon complexes. Tremendous progress in experimental, as well as computational, techniques has granted synthetic access to a broad range of coordination numbers for silicon, and the scientific endeavor, which was ongoing for decades, was rewarded with landmark discoveries in the field of organosilicon chemistry. Molecular congeners of silicon(0), as well as silicon oxides, were unveiled, and the prominent group 14 metalloid proved its applicability in homogenous catalysis as a supportive ligand or even as a center of catalytic activity. This book focuses on the most recent advances in the coordination chemistry of silicon with transition metals as well as main group elements, including the stabilization of low-valent silicon species through the coordination of electron donor ligands. Therefore, this book is associated with the development of novel synthetic methodologies, structural elucidations, bonding analysis, and also possible applications in catalysis or chemical transformations using related organosilicon compounds.

cluster --- molecular orbital analysis --- bond activation --- X-ray diffraction --- silsesquioxanes --- digermacyclobutadiene --- intermetallic bond --- germanium --- computational chemistry --- ?-electron systems --- isocyanide --- X-ray crystallography --- cyclic organopolysilane --- disilene --- ruthenium --- platinum --- DFT --- Photostability --- silicon surfaces --- stereochemistry --- palladium --- distorted coordination --- ²⁹Si NMR spectroscopy --- organosilicon --- disilanylene polymer --- Si–Cl activation --- adsorption --- AIM --- siliconoid --- nanoparticle --- disiloxane tetrols --- germylene --- hydrogen bonding --- TiO₂ --- dehydrogenative alkoxylation --- siloxanes --- 2-silylpyrrolidines --- bonding analysis --- ?-chloro-?-hydrooligosilane --- hydrido complex --- oxidative addition --- photoreaction --- template --- surface modification --- titanium --- bromosilylenes --- host-guest chemistry --- hydrogen bonds --- salt-free --- N-heterocyclic carbines --- silicon cluster --- condensation --- silyliumylidenes --- Baird’s rule --- N-heterocyclic carbenes --- reductant --- main group coordination chemistry --- molecular cage --- subvalent compounds --- isomerization --- silanetriols --- germathioacid chloride --- dehydrobromination --- N-heterocyclic carbene --- mechanistic insights --- ligand-exchange reaction --- bridging silylene ligand --- dye-sensitized solar cell --- silylene --- computation --- functionalization --- silicon --- digermene --- N-Heterocyclic tetrylene --- density functional theory --- primary silane --- small molecule activation --- excited state aromaticity --- germanethione --- supramolecular chemistry

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This book is a printed edition of the Special Issue Crystal Chemistry of Zinc, Cadmium and Mercury that was published in Crystals

hydroxyl group --- bis(1 --- quinaldinic acid --- solidification --- xanthate --- wurtzite --- mechanical --- EBSD --- oxo-centred polyhedra --- coordination polymer --- precipitation --- 5-thiophenedicarboxylic acid --- defects in semiconductors --- zinc(II) complexes --- precursor --- nanometer zinc oxide --- zinc --- thermal analysis --- transmission electron microscopy (TEM) --- crystal chemistry --- pyridine --- dithiocarbamate --- high magnetic field --- index of X-ray powder diffraction data --- 1 --- hydrogen bonding --- 2 --- luminescence --- cadmium --- interface structure --- 3-bis(1 --- mercury --- aqueous solution method --- crystallography --- growth mechanism --- PL spectra --- phonon dispersion --- coordination polymers --- 4-triazol-1-yl)propane --- CdZnTe --- oxochromates(VI) --- Ni3Sn structure type --- structural chemistry --- dithiophosphates --- traveling heater method --- ZnO nanorod arrays --- copper amalgams --- dental amalgams --- unusual coordination modes --- CdS --- zinc-rich crystal --- 4-triazol-1-yl)methane --- elastic --- crystal structure --- phonon --- bitopic ligand --- room-temperature solid state reaction --- zinc complex --- characterization --- crystal engineering --- ZnS --- hydrogen bond --- hydroxyl group --- bis(1 --- quinaldinic acid --- solidification --- xanthate --- wurtzite --- mechanical --- EBSD --- oxo-centred polyhedra --- coordination polymer --- precipitation --- 5-thiophenedicarboxylic acid --- defects in semiconductors --- zinc(II) complexes --- precursor --- nanometer zinc oxide --- zinc --- thermal analysis --- transmission electron microscopy (TEM) --- crystal chemistry --- pyridine --- dithiocarbamate --- high magnetic field --- index of X-ray powder diffraction data --- 1 --- hydrogen bonding --- 2 --- luminescence --- cadmium --- interface structure --- 3-bis(1 --- mercury --- aqueous solution method --- crystallography --- growth mechanism --- PL spectra --- phonon dispersion --- coordination polymers --- 4-triazol-1-yl)propane --- CdZnTe --- oxochromates(VI) --- Ni3Sn structure type --- structural chemistry --- dithiophosphates --- traveling heater method --- ZnO nanorod arrays --- copper amalgams --- dental amalgams --- unusual coordination modes --- CdS --- zinc-rich crystal --- 4-triazol-1-yl)methane --- elastic --- crystal structure --- phonon --- bitopic ligand --- room-temperature solid state reaction --- zinc complex --- characterization --- crystal engineering --- ZnS --- hydrogen bond

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The crystal chemistry of spin crossover (SCO) behavior in coordination compounds can potentially be in association with smart materials—promising materials for applications as components of memory devices, displays, sensors and mechanical devices and, especially, actuators, such as artificial muscles. This Special Issue is devoted to various aspects of SCO and related research, comprising 18 interesting original papers on valuable and important SCO topics. Significant and fundamental scientific attention has been focused on the SCO phenomena in a wide research range of fields of fundamental chemical and physical and related sciences, containing the interdisciplinary regions of chemical and physical sciences related to the SCO phenomena. Coordination materials with bistable systems between the LS and the HS states are usually triggered by external stimuli, such as temperature, light, pressure, guest molecule inclusion, soft X-ray, and nuclear decay. Since the first Hofmann-like spin crossover (SCO) behavior in {Fe(py)2[Ni(CN)4]}n (py = pyridine) was demonstrated, this crystal chemistry motif has been frequently used to design Fe(II) SCO materials to enable determination of the correlations between structural features and magnetic properties.

n/a --- hexadentate ligand --- X-ray diffraction --- structural disorder --- lattice energy --- 2-bis(4-pyridyl)ethane --- thermal hysteresis --- optical conductivity spectrum --- spin-state crossover --- solvate --- single crystal --- spin-crossover transition --- spin-crossover --- cobalt oxide --- amorphous --- metal dithiolene complexes --- qsal ligand --- impurity effect --- 3-triazole --- intermolecular interactions --- spin crossover --- hydrogen bonding --- 1 --- 2 --- optical microscopy --- supramolecular coordination polymer --- paramagnetic ligand --- magnetic susceptibility --- high spin --- [Fe(III)(3-OMesal2-trien)]+ --- aminoxyl --- cobalt(II) ion --- mosaicity --- Fe(III) coordination complexes --- nitroxides --- C–H···? interactions --- Fe(II) --- dithiooxalato ligand --- dinuclear triple helicate --- coordination polymers --- magnetization --- spiral structure --- magnetostructural correlations --- charge-transfer phase transition --- structure phase transition --- magnetic properties --- spin polaron --- substitution of 3d transition metal ion --- iron(II) complexes --- X-ray absorption spectroscopy --- coordination complexes --- crystal engineering --- fatigability --- soft X-ray induced excited spin state trapping --- spin transition --- dipyridyl-N-alkylamine ligands --- coordination polymer --- iron (II) --- iron mixed-valence complex --- chiral propeller structure --- spin cross-over (SCO) --- EPR spectroscopy --- Cu(II) complexes --- solvent effects --- ferromagnetism --- SQUID --- LIESST effect --- low spin (LS) --- 57Fe Mössbauer spectroscopy --- dielectric response --- iron(II) --- hetero metal complex --- atropisomerism --- switch --- Schiff base --- counter-anion --- DFT calculation --- Fe(III) complex --- Fe(II) complex --- high spin (HS) --- reaction diffusion --- thermochromism --- supramolecular isomerism --- phase transition --- magnetic transition --- mononuclear --- [Au(dmit)2]? --- UV-Vis spectroscopy --- phase transitions --- ?-? interactions --- [Au(dddt)2]? --- crystal structure --- linear pentadentate ligand --- ion-pair crystals --- C-H···? interactions --- 57Fe Mössbauer spectroscopy