Electronvolt Converter
Convert Electronvolt to Hartree Energy and more • 50 conversions
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Unit Explanations
Electronvoltelectronvolt
Source UnitElectronvolt is a unit of energy used in various contexts.
Current Use
To be populated.
Hartree EnergyEh
Target UnitThe hartree energy (Eh) is a fundamental unit of energy used in atomic physics, quantum chemistry, and molecular modeling. It is defined as the energy associated with the ionization of a hydrogen atom in its ground state, which is approximately 4.35974 × 10^(-18) joules or 27.2114 electronvolts. This unit is particularly useful when dealing with the energy levels of electrons in atoms and molecules, providing a natural energy scale for electronic interactions. The hartree energy is a measure that simplifies calculations in quantum mechanics, allowing physicists and chemists to express energy differences in a convenient form, enhancing clarity in theoretical models and computational applications.
Current Use
The hartree energy is extensively used in various scientific disciplines, particularly in quantum chemistry and atomic physics. Researchers in these fields utilize the hartree as a natural unit of measurement for energy levels, allowing for easier interpretation and comparison of results. In computational chemistry, the hartree energy is often employed in methods like Hartree-Fock, Density Functional Theory (DFT), and post-Hartree-Fock methods to describe electron correlation and interactions. The unit is prevalent in countries with robust research programs in physics and chemistry, including the United States, Germany, the United Kingdom, and Japan. Industries such as pharmaceuticals, materials science, and nanotechnology also benefit from calculations using the hartree energy, as they explore molecular interactions and design new compounds.
Fun Fact
The hartree energy is approximately equal to 27.2114 eV.
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📐Conversion Formula
= × 1.00000How to Convert
To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.
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💡 Pro Tip: For the reverse conversion ( → ), divide by the conversion factor instead of multiplying.
Electronvolt
energy • Non-SI
Definition
Electronvolt is a unit of energy used in various contexts.
History & Origin
To be populated.
Etymology: To be populated.
Current Use
To be populated.
Hartree Energy
energy • Non-SI
Definition
The hartree energy (Eh) is a fundamental unit of energy used in atomic physics, quantum chemistry, and molecular modeling. It is defined as the energy associated with the ionization of a hydrogen atom in its ground state, which is approximately 4.35974 × 10^(-18) joules or 27.2114 electronvolts. This unit is particularly useful when dealing with the energy levels of electrons in atoms and molecules, providing a natural energy scale for electronic interactions. The hartree energy is a measure that simplifies calculations in quantum mechanics, allowing physicists and chemists to express energy differences in a convenient form, enhancing clarity in theoretical models and computational applications.
History & Origin
The term 'hartree' is named in honor of the British physicist Douglas Hartree, who made significant contributions to the field of quantum mechanics and computational methods in the early 20th century. Hartree developed the Hartree method, a pioneering approach to solve the many-electron problem in quantum mechanics. This method allowed scientists to calculate the behavior of electrons in atoms and molecules using approximations, making complex quantum mechanical calculations more manageable. The hartree energy unit emerged from these developments as a natural way to express energies in atomic systems, reflecting the energy scale relevant to electron interactions.
Etymology: The term 'hartree' is derived from the last name of Douglas Hartree, reflecting the contributions he made to quantum mechanics and computational physics.
Current Use
The hartree energy is extensively used in various scientific disciplines, particularly in quantum chemistry and atomic physics. Researchers in these fields utilize the hartree as a natural unit of measurement for energy levels, allowing for easier interpretation and comparison of results. In computational chemistry, the hartree energy is often employed in methods like Hartree-Fock, Density Functional Theory (DFT), and post-Hartree-Fock methods to describe electron correlation and interactions. The unit is prevalent in countries with robust research programs in physics and chemistry, including the United States, Germany, the United Kingdom, and Japan. Industries such as pharmaceuticals, materials science, and nanotechnology also benefit from calculations using the hartree energy, as they explore molecular interactions and design new compounds.
💡 Fun Facts
- •The hartree energy is approximately equal to 27.2114 eV.
- •In atomic units, the hartree energy is conveniently set to 1, simplifying many quantum mechanical calculations.
- •The hartree is not an SI unit, but it is widely accepted in scientific literature.
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