نتایج جستجو برای: hydrogen network
تعداد نتایج: 810134 فیلتر نتایج به سال:
In the title compound, C(7)H(10)N(+)·NO(3) (-), the 3-methyl-anilinium cations inter-act with the nitrate anions through strong bifurcated N(+)-H⋯(O,O) hydrogen bonds, forming a two-dimensional hydrogen-bonded network.
The crystal structure of the title compound, C(4)H(7)N(5)·CH(4)O, is determined by an extensive network of hydrogen bonding. A sequence of centrosymmetric dimeric associations, formed by two different N-H(amino)⋯N(ring) hydrogen bonds, connects the triazine rings into a planar mol-ecular tape. The methanol solvent mol-ecules act as di-acceptors and mono-donors of hydrogen bonds and inter-link, ...
In the crystal of the title salt, 2C(2)H(8)N(+)·C(6)H(4)O(8)S(2) (2-), the anion lies on a center of inversion. The dimethyl-ammonium cation forms one N-H⋯O hydrogen bond and another bifurcated N-H⋯O hydrogen bond. The hy-droxy group links with the sulfonyl group via an inter-molecular O-H⋯O hydrogen bond. These N-H⋯O and O-H⋯O hydrogen bonds generate a three-dimensional network.
In the title compound, C(6)H(8)NO(2) (+)·Cl(-), inter-molecular O-H⋯Cl and N-H⋯Cl hydrogen bonds are observed in which each chloride anion links three adjacent cations into a hydrogen-bond network.
Hydrogen bond networks are key elements of protein structure and function but have been challenging to study within the complex protein environment. We have carried out in-depth interrogations of the proton transfer equilibrium within a hydrogen bond network formed to bound phenols in the active site of ketosteroid isomerase. We systematically varied the proton affinity of the phenol using diff...
In the crystal structure of the title compound, C(6)H(7)IN(+)·ClO(4) (-), the ions are connected in a three-dimensional hydrogen-bonded network via N-H⋯O hydrogen bonds.
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