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Hydrogen Bonds Hydrophobic or Hydrophilic
On the hydrophilic and hydrophobic nature of hydrogen bonds
On the physical properties of the world, there are many opinions on the hydrophilic and hydrophobic nature of hydrogen bonds. To understand the reason, we should investigate its root.
The hydrogen bond between the husband, the genus of non-strong bonds, is a weak interaction between molecules. Take the hydrogen atom as a bridge, between the atoms with large electronegativity. Common such as nitrogen, oxygen, and fluorine, which are connected to hydrogen, due to the difference in electronegativity, hydrogen is dominant positive, and other electronegative large atoms are negative, so they become hydrogen bonds.
View hydrophilicity. Water, the source of life, takes hydrogen bonds as the main. Hydrogen bonds between water molecules make water have high boiling point and high specific heat capacity. If the solute contains groups that can form hydrogen bonds, such as hydroxyl groups and amino groups, it can form hydrogen bonds with water molecules, and it is easily soluble in water, which is a sign of hydrophilicity. For ethanol, the hydroxyl group forms a hydrogen bond with water, so it is mutually soluble with water, which is very clear.
However, there are also reasons for hydrophobicity. In non-polar systems, hydrogen bonds are different from water. For example, long-chain hydrocarbon groups in organic molecules have high cohesion energy. If they contain hydrogen-bonding groups, in order to avoid the polarity of water, the orientation of hydrogen bonds is different, so that the molecules tend to polymerize and are hydrophobic. Such as fatty acids, hydrocarbyl hydrophobic, carboxyl hydrophilic, self-aggregating in water to form micelles, carboxyl groups contact with water outwardly, and hydrocarbyl groups are built-in, which is the image of hydrophobicity.
It is important to note that the hydrophilicity of hydrogen bonds is not absolute. It varies depending on the system and molecular structure. In polar systems, hydrogen bonds are often hydrophilic; in non-polar systems, they may be hydrophobic. Knowing this, it is very useful in the fields of chemistry and biology. It can explore the wonders of molecular action and solve the properties of substances.
On the physical properties of the world, there are many opinions on the hydrophilic and hydrophobic nature of hydrogen bonds. To understand the reason, we should investigate its root.
The hydrogen bond between the husband, the genus of non-strong bonds, is a weak interaction between molecules. Take the hydrogen atom as a bridge, between the atoms with large electronegativity. Common such as nitrogen, oxygen, and fluorine, which are connected to hydrogen, due to the difference in electronegativity, hydrogen is dominant positive, and other electronegative large atoms are negative, so they become hydrogen bonds.
View hydrophilicity. Water, the source of life, takes hydrogen bonds as the main. Hydrogen bonds between water molecules make water have high boiling point and high specific heat capacity. If the solute contains groups that can form hydrogen bonds, such as hydroxyl groups and amino groups, it can form hydrogen bonds with water molecules, and it is easily soluble in water, which is a sign of hydrophilicity. For ethanol, the hydroxyl group forms a hydrogen bond with water, so it is mutually soluble with water, which is very clear.
However, there are also reasons for hydrophobicity. In non-polar systems, hydrogen bonds are different from water. For example, long-chain hydrocarbon groups in organic molecules have high cohesion energy. If they contain hydrogen-bonding groups, in order to avoid the polarity of water, the orientation of hydrogen bonds is different, so that the molecules tend to polymerize and are hydrophobic. Such as fatty acids, hydrocarbyl hydrophobic, carboxyl hydrophilic, self-aggregating in water to form micelles, carboxyl groups contact with water outwardly, and hydrocarbyl groups are built-in, which is the image of hydrophobicity.
It is important to note that the hydrophilicity of hydrogen bonds is not absolute. It varies depending on the system and molecular structure. In polar systems, hydrogen bonds are often hydrophilic; in non-polar systems, they may be hydrophobic. Knowing this, it is very useful in the fields of chemistry and biology. It can explore the wonders of molecular action and solve the properties of substances.
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