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Is Hydrogen Bonding Non Covalent
"On the Non-Covalent Property of Hydrogen Bonds"
Taste the theory of chemistry, the nature of hydrogen bonds, and everyone has talked about it. Either hydrogen bonds are covalent, or they are not covalent. Now I want to find out what it is, so as to make a positive sound.
The covalent bond is formed by the shared electron pair between atoms, and its force is derived from the overlap of electron clouds, which is stable and strong. Although hydrogen bonds involve hydrogen, they are essentially different from covalent.
The formation of hydrogen bonds is the combination of hydrogen atoms and electronegative atoms (such as nitrogen, oxygen, and fluorine). This hydrogen atom is slightly positive due to the difference in electronegativity, and then attracts the lone pair of electrons of another electronegative large atom. This attraction is not like the sharing of electron pairs in covalent bonds, but the weak interaction between molecules or within molecules.
Take water as an example. Hydrogen and oxygen in water molecules are covalently connected, and the hydrogen bonds between water molecules give water unique physical properties, such as high boiling point and high specific heat capacity. If hydrogen bonds are covalent, their properties must be very different.
Looking at the experimental data, the bond energy of hydrogen bonds is much smaller than that of covalent bonds. This also proves that hydrogen bonds are not covalent.
In summary, the theory that hydrogen bonds are not covalent is beyond doubt. Scholars should be clear about it, not be confused by what he said, and use the principles of positive chemistry to understand the microscopic wonders.
Taste the theory of chemistry, the nature of hydrogen bonds, and everyone has talked about it. Either hydrogen bonds are covalent, or they are not covalent. Now I want to find out what it is, so as to make a positive sound.
The covalent bond is formed by the shared electron pair between atoms, and its force is derived from the overlap of electron clouds, which is stable and strong. Although hydrogen bonds involve hydrogen, they are essentially different from covalent.
The formation of hydrogen bonds is the combination of hydrogen atoms and electronegative atoms (such as nitrogen, oxygen, and fluorine). This hydrogen atom is slightly positive due to the difference in electronegativity, and then attracts the lone pair of electrons of another electronegative large atom. This attraction is not like the sharing of electron pairs in covalent bonds, but the weak interaction between molecules or within molecules.
Take water as an example. Hydrogen and oxygen in water molecules are covalently connected, and the hydrogen bonds between water molecules give water unique physical properties, such as high boiling point and high specific heat capacity. If hydrogen bonds are covalent, their properties must be very different.
Looking at the experimental data, the bond energy of hydrogen bonds is much smaller than that of covalent bonds. This also proves that hydrogen bonds are not covalent.
In summary, the theory that hydrogen bonds are not covalent is beyond doubt. Scholars should be clear about it, not be confused by what he said, and use the principles of positive chemistry to understand the microscopic wonders.
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