Hydrogen Bonding Occurs Between Two Electronegative Centers The hydrogen bond involves the sharing of the positive charge of hydrogen between two electronegative centers such as oxygen and nitrogen. It requires proximity and proper orientation of the two electronegative centers. In the case of water, th...
Hydrogen bonding is the attractive interaction that occurs between a hydrogen atom bound in a molecule to an electronegative atom such as oxygen or nitrogen and another electronegative atom from a different molecule (intermolecular) or even from the same molecule (intramolecular). ...
The double helical structure of DNA, for example, is due largely to hydrogen bonding between the base pairs, which link one complementary strand to the other and enable replication.In proteins, hydrogen bonds form between the backbone oxygens and amide hydrogens. When the spacing of the amino ...
Consistent with previous findings, strong hydrogen bonding occurs between the OH group of MSA and H2O molecules. The (MSA)m⋅(H2O)n,(m=1−2,n=3−5) clusters exhibit multiple stable isomers due to the availability of multiple binding sites on MSA and the hydrogen bonding capability of ...
Additional stabilization is provided by intermolecular hydrogen‐bonding interactions between acidic positions on the catalyst backbone and the substrate. Enantioselectivity occurs because the intermolecular hydrogen bond in the transition state leading to the minor enantiomer is only possible at the expense ...
Hysteresis and microscopic hydrogen bonding The data above establish that hysteresis observed in sorption-induced swelling arises from the coupling between sorption and deformation but they do not provide a microscopic picture of the underlying mechanisms. To examine the microscopic origin of such hysteresi...
Hydrogen bonding (H-bonding) is an important and very general phenomenon. H-bonding is part of the basis of life in DNA, key in controlling the properties
Hydrogen bonding (HB), that occurs between hydrogen atoms and strongly electronegative atoms, is a common natural interaction force. This type of bonding can primarily enhance the stability of molecular structures within the system by strongly attracting the nearby molecules, while facilitating the ...
This finding demonstrates that hydrogen-bonding between 1 molecules occurs with a specific configura- tion. Hence, the formation of screw-shaped hydrogen-bonded rosettes, which is confirmed by the following STM study, and the corresponding intermediate oligomers (c ≪ 400 mM) are strongly ...
For example, a well known textbook states: ‘Because the bonding depends on orbital overlap, the H-bond is virtually a contact-like interaction that is turned on when XH touches Y and is zero as soon as the contact is broken’[1]. IUPAC has recently had a panel of experts considering ...