Definition of the Hydrogen Bond - Strong and Weak Bonds

1 Definition of the Hydrogen Bond - Strong and Weak Bonds 

This general view of hydrogen bonding is supported by experimental observations which determine directly the electron distribution around the hydrogen atom, such as X-ray and neutron charge density studies (see Chap. 3.4), the large changes 

Most common hydrogen bonds in biological molecules  

The question is, therefore, should the C-H 0=C interaction be referred to as a hydrogen bond, even though there is every reason to suspect that the carbon atom is not electronegative and may even carry a net positive charge By Pauling s definition, the answer is no. By Pimental and McClellan s definition, the answer is yes.  

Strong and weak hydrogen bonds have very different properties. A case can be made for the view that strong hydrogen bonds are quantitatively different in most of their properties from moderate or weak bonds [49]. 

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