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If you mean a dipole which only lasts for an instant, then you have to picture the electrons of the molecule surrounding the nuclei. In a non-polar molecule the electrons are shared evenly on average, but at any one second they may be distributed so that there is a greater density at one end than another, i.e. there is a temporary dipole.
An instantaneous dipole can occur when the electron distribution in a molecule is momentarily uneven, creating a temporary dipole moment. This can happen due to random fluctuations in electron distribution within the molecule. These instantaneously induced dipoles can lead to London dispersion forces, which are a type of weak intermolecular force.
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What is the difference between instantaneous dipole and induced dipole?
Dipole-dipole is between two polar molecules, that would be polar anyway. Dipole-induced dipole is between a polar molecule and a non-polar molecule that is now polar due to the proximity of a polar molecule.
Why a dipole develops in a molecule?
A dipole develops in a molecule when there is an unequal distribution of electron density, causing one end of the molecule to be more negatively charged and the other end to be more positively charged. This occurs due to differences in electronegativity between atoms within the molecule, leading to a separation of charge and the formation of a dipole moment.
What are the conditions for ammonia molecule to be IR active?
For an ammonia molecule to be IR active, it must have a changing dipole moment, which is caused by the asymmetric stretching and bending vibrations of its bonds. This is because IR spectroscopy detects changes in the dipole moment of a molecule as it absorbs infrared radiation. In the case of ammonia, its stretching and bending vibrations result in a non-zero dipole moment change, making it IR active.
Is SO2 dipole in nature?
Yes, sulfur dioxide (SO2) is a polar molecule and has a dipole moment. This is because of the difference in electronegativity between the sulfur and oxygen atoms, causing an unequal distribution of electron density within the molecule.
What is the direction of the dipole moment expected for hydrogen bromide?
The dipole moment of hydrogen bromide is expected to be in the direction from hydrogen to bromine. This is because bromine is more electronegative than hydrogen, causing an uneven distribution of electron density in the molecule.
What is the difference between instantaneous dipole and induced dipole?
Dipole-dipole is between two polar molecules, that would be polar anyway. Dipole-induced dipole is between a polar molecule and a non-polar molecule that is now polar due to the proximity of a polar molecule.
How can molecule have an instantaneous dipole?
If you mean a dipole which only lasts for an instant, then you have to picture the electrons of the molecule surrounding the nuclei. In a non-polar molecule the electrons are shared evenly on average, but at any one second they may be distributed so that there is a greater density at one end than another, i.e. there is a temporary dipole.
Which comes first in London dispersion Instantaneous dipole or induced dipole?
instantaneus
Is NOCl a polar or nonpolar Molecule?
A ball-and-stick model for NOCl is given below:This is a polar molecular compound. Therefore, the intermolecular forces include dipole-dipole forces and dispersion forces.Dispersion forces are also called London forces, induced dipole-induced dipole forces, or instantaneous dipole-induced dipole forces. By: Muqaddam Ahmed Salim a.k.a H2O
What is instantaneous dipole forces for nonpolar molecules?
That is dispersion force.
Does a dipole moment exist with Neon?
Neon exists as a monoatomic molecule. Hence it doesn't have any permanent dipole moment. However instantaneous dipoles are present, and these give rise to London dispersion forces
What type of molecule has Dipole-Dipole forces created?
Ay molecule with a net dipole moment will have dipole -dipole interactions. These are molecules with polar bonds caused by a diference in electronegativity between the atoms being bonded.
Is PF5 dipole-dipole?
No, PF5 is not a dipole-dipole molecule. It has a trigonal bipyramidal geometry with fluorine atoms arranged symmetrically around the central phosphorus atom, resulting in a nonpolar molecule.
What are examples of dipole induced dipole forces?
Examples of dipole-induced dipole forces include the interaction between a polar molecule (with a permanent dipole moment) and a nonpolar molecule (with an induced dipole moment) or the interaction between a polar molecule and a nonpolar atom. This type of interaction leads to a temporary polarization in the nonpolar molecule or atom due to the presence of the polar molecule, resulting in a weak attractive force between them.
Does HCl have a dipole dipole interaction?
Yes, HCl has a dipole-dipole interaction because it is a polar molecule. The difference in electronegativity between hydrogen and chlorine creates a permanent dipole moment in the molecule, leading to dipole-dipole attractions between neighboring HCl molecules.
Is CH2O a dipole dipole?
Yes, CH2O is a polar molecule due to the difference in electronegativity between carbon and oxygen atoms. It exhibits dipole-dipole interactions as a result of this polarity.
What do you mean by Dipole Moment and Induced Dipole Moment?
A dipole moment is a measure of the separation of positive and negative charges in a molecule, indicating the molecule's overall polarity. An induced dipole moment occurs when an external electric field causes the distribution of electron density in a nonpolar molecule to become momentarily asymmetric, creating a temporary dipole moment.
