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Why are steric effects repulsive? - Chemistry Stack Exchange
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Valence electrons fill the bonding MOs first, resulting in a bond. The explanation of steric effects that I often hear is that they are caused by the overlap of two electron clouds, resulting in repulsion. Since electron clouds are just composed of occupied orbitals, how is this "overlap of electron clouds" different from the picture of bonding ...Explore further
organic chemistry - What is the difference between …
WEBOct 3, 2015 · This repulsion is known as steric strain. Therefore steric strain can be define as the repulsion which occurs when non-bonded groups which are not directly bonded approach each other too closely. …
Why are lp-lp repulsions greater than bp-lp and bp-bp?
WEBMay 30, 2015 · Lone pair-lone pair (lp-lp) repulsions are considered stronger than lone pair-bonding pair (lp-bp) repulsions, which in turn are considered stronger than bonding …
molecules - Why do single, double and triple bonds repel each …
WEB$\begingroup$ @Antimon well, in order to get the regular patterns as a starting base, you need to say that variations in “repulsion” (or “spatial need”) are a second-order quantity. …
molecular structure - Chemistry Stack Exchange
WEBFeb 17, 2021 · Steric effects are nonbonding interactions that influence the shape (conformation) and reactivity of ions and molecules. Steric effects complement electronic effects, which dictate the shape and …
inorganic chemistry - electron - electron repulsion and shielding ...
WEBJul 23, 2023 · Electron–electron repulsion that does not fit those conditions is not called shielding. The boundary is not sharp, as seen for n-1 level electrons shielding ns, np …
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Correlation between Coulomb's law and VSEPR theory
WEBMar 31, 2014 · Lone pairs are attached to same atom, they are free. As expected, they should repulse to greater extent. Bond pairs are attached to two different atoms, the …
Electron pairing and repulsion - Chemistry Stack Exchange
WEBMar 17, 2017 · The energy of the high-spin, "excited" state can be calculated according to: $$ E_\text{triplet}^\text{RHF} = E_{nn} + (1|h|1) + (2|h|2) + (11|22) - (12|12) = -0.56207, …
physical chemistry - How to explain Born repulsion between ions …
WEBThe term $+b/r^n$ is a power law repulsion term between the ions, where $b$ is the bare ion radius (twice the van der Waals radius) and $r$ the separation. The hard sphere …
How do valence shell configurations affect attraction and …
WEBJan 7, 2016 · Is it because the repulsion between the electrons wins out over the electron-proton attractive forces. Furthermore, why do valence shell arrangements with …
thermodynamics - Chemistry Stack Exchange
WEBJul 23, 2015 · The opposite is true of repulsion. The potential energy of two like-charged particles, e.g. two $\ce{Na+}$ atoms, will increase as they are brought closer together. …
homework - Chemistry Stack Exchange
WEBOct 7, 2016 · At high pressure the molecules are close each other that attractive forces are negligible but molecular size is significant.Thus repulsive forces are significant. As …
physical chemistry - Lennard-Jones Potential repulsion by …
WEBDec 23, 2021 · As you mention, there are two effects which result in short-range repulsion: nuclear-nuclear repulsion and so-called Pauli repulsion due to the electron exchange. …
electrons - Inter electronic repulsion in s and d orbitals
WEBTwo electrons in one orbital must have spin directions opposite to one another. There is no spin-orbit coupling in s-orbital, so these electrons repel only because of their charge. …
Electronegativity and anion stability - Chemistry Stack Exchange
WEBMay 21, 2016 · This means the negative charge is distributed over a wider space, reducing repulsion among all electrons. You might say its a competition between attraction to the …
What are the effects of the repulsive forces between electron on …
WEBSep 20, 2015 · This sum of electronic energy $E_{\mathrm{e}}$ and nuclear repulsion energy $V_{\mathrm{nn}}$ plays a role of potential energy for the motion of the nuclei, …
inorganic chemistry - Shielding vs electron-electron repulsion ...
WEBApr 14, 2022 · The last electron in the 6s subshell of Cs C s is shielded from the nucleus by the inner electrons. Example of electron-electron repulsion: The electron affinity of F F is …
What are B and n in this expression for charge repulsion?
WEBMay 30, 2015 · The first term is the attraction energy between the two equal but oppositely charged ions Na+ N a + and Cl− C l −. The second term is the repulsion …
Coulombic energy of repulsion and exchange energy
WEBAug 18, 2019 · Thanks for contributing an answer to Chemistry Stack Exchange! Please be sure to answer the question. Provide details and share your research! But avoid …
inorganic chemistry - Half-Filled Shells and Stability explanation ...
WEBIs it correct to conclude that if a sub-shell is half filled, the repulsion between electrons in the half-filled subshell and other subshells with fully-filled orbitals is reduced (e.g. …
quantum chemistry - Where does the exchange energy released …
WEBAug 13, 2022 · For fermions [including electrons], this interaction is sometimes called Pauli repulsion and is related to the Pauli exclusion principle. For bosons, the exchange …
quantum chemistry - Trying to understand the necessity of orbital ...
WEBOct 20, 2015 · The only sensible meaning that we can give to it is that it is a potential of Coulomb interactions between each and every electron and the average field created by …
organic chemistry - Trying to understand the causes and …
WEBFeb 25, 2016 · Thanks for contributing an answer to Chemistry Stack Exchange! Please be sure to answer the question. Provide details and share your research! But avoid …
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