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Is CH4 Hydrogen Bonding
Whether methane ($CH_4 $) has the property of hydrogen bond is related to its structure. To know whether $CH_4 $has hydrogen bond or not, it is necessary to investigate the wonder of its molecular structure.
The structure of $CH_4 $, carbon occupies the center, and tetrahydrogens are attached by covalent bonds, which are in the shape of tetrahedra. The electronegativity difference between carbon and hydrogen is not huge, and the covalent bond polarity formed is quite weak.
The so-called hydrogen bond is a weak interaction between a hydrogen atom and an atom with strong electronegativity (such as fluorine, oxygen, nitrogen) in a covalent bond, and with another atom with strong electronegativity. Its formation requires strict conditions: hydrogen atoms must be connected to atoms with large electronegativity and small radius, and there must be lone pairs of electrons.
In $CH_4 $, hydrogen is attached to carbon, and the electronegativity of carbon is weaker than that of fluorine, oxygen, and nitrogen, which is not enough to make hydrogen show strong positive electricity, and carbon has no solitary pair electrons to interact with hydrogen. Therefore, there is no hydrogen bond between $CH_4 $molecules.
From this point of view, the intermolecular force of $CH_4 $is only van der Waals force, and there is no special effect of hydrogen bond. Therefore, $CH_4 $has unique physical and chemical properties.
The structure of $CH_4 $, carbon occupies the center, and tetrahydrogens are attached by covalent bonds, which are in the shape of tetrahedra. The electronegativity difference between carbon and hydrogen is not huge, and the covalent bond polarity formed is quite weak.
The so-called hydrogen bond is a weak interaction between a hydrogen atom and an atom with strong electronegativity (such as fluorine, oxygen, nitrogen) in a covalent bond, and with another atom with strong electronegativity. Its formation requires strict conditions: hydrogen atoms must be connected to atoms with large electronegativity and small radius, and there must be lone pairs of electrons.
In $CH_4 $, hydrogen is attached to carbon, and the electronegativity of carbon is weaker than that of fluorine, oxygen, and nitrogen, which is not enough to make hydrogen show strong positive electricity, and carbon has no solitary pair electrons to interact with hydrogen. Therefore, there is no hydrogen bond between $CH_4 $molecules.
From this point of view, the intermolecular force of $CH_4 $is only van der Waals force, and there is no special effect of hydrogen bond. Therefore, $CH_4 $has unique physical and chemical properties.
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