Topic
Hydrogen bond
About: Hydrogen bond is a research topic. Over the lifetime, 57701 publications have been published within this topic receiving 1306326 citations.
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TL;DR: In this paper, a review of chromophore-quencher complexes is presented, in which interacting chromophores and quencher fragments are instead held together by non-covalent interactions such as hydrogen bonding, aromatic π-stacking, hydrophobic interactions and labile metal-ligand coordinate bonds.
Abstract: Covalently linked chromophore–quencher complexes are widespread in the area of transition-metal photochemistry and as models for photosynthesis. This review surveys recent examples of supramolecular complexes in which interacting chromophore and quencher fragments are instead held together by non-covalent interactions such as hydrogen bonding, aromatic π-stacking, hydrophobic interactions and labile metal–ligand coordinate bonds. The use of these methods to assemble multi-component photo-active complexes has led to the preparation of many highly sophisticated systems for energy transfer or charge separation which would not be accessible by ‘conventional’ synthetic methodology.
392 citations
392 citations
391 citations
TL;DR: The first-order phase transition of water fractions closely associated with the polymer matrix is usually impossible to observe as mentioned in this paper, and these fractions are referred to as non-freezing water, whose melting/crystallization temperature and enthalpy are not significantly different from those of normal (bulk) water.
391 citations
TL;DR: The role of water in protein dynamics has been investigated using molecular dynamics simulations of crystals and a dehydrated powder and the anharmonic and diffusive motions involved in the protein structural relaxation are correlated with the protein-water hydrogen bond dynamics.
Abstract: The role of water in protein dynamics has been investigated using molecular dynamics simulations of crystals and a dehydrated powder. On the 100 ps time scale, the anharmonic and diffusive motions involved in the protein structural relaxation are correlated with the protein-water hydrogen bond dynamics. The complete structural relaxation of the protein requires relaxation of the hydrogen bond network via solvent translational displacement. Inhibiting the solvent translational mobility, and therefore the protein-water hydrogen bond dynamics, has an effect on the protein relaxation similar to dehydration.
390 citations