The only proper way to do it ab initio is to calculate the energy (E) for various internuclear distances (R) and then to approximate the equilibrium bond length by choosing the distance which has the lowest energy, or by fitting the E (R) points to something like a Morse potential (which is decent for short-distances), Lennard-Jones potential (which is decent for large distances), or the one ...
I disagree with the statement by Tyberius that: "Bond order isn't terribly useful to a computationalist directly; however, it can be invaluable for translating Quantum Mechanical results into a framework thats readily understood by experimentalists.". Bond order quantifies the number of electrons that are shared (technically, 'dressed exchanged') between two atoms in a material. Bond order is ...
An experimental colleague asked me how hard it would be to calculate homolytic bond-dissociation energies for different phosphonates which are involved in a Hydrophosphination. The compounds include
I am using a package called PySmiles and it is returning a dialect of SMILES for aromatic groups that uses aromatic bond symbols e.g. NC:1:N:N:C:[N]1N. RDKit does not recognize these symbols and it removes all the aromaticity.
My question, broadly is: why is it harder to simulate a molecule with a stretched bond? Based on what I know so far, it seems the answer is: as the bond is stretched, multiple orbital energy levels converge in energy, and as a result, this yields exponentially many Slater determinants in the ground state with large coefficients.
Although they are much weaker than the preeminent "covalent" chemical bonds that bind atoms in biological molecules, hydrogen bonds are known to occur at key points along the central "backbone" ...
The Oklahoman on MSN: Why OKC needs a unified 'yes' on all 11 bond measures | Opinion
Why OKC needs a unified 'yes' on all 11 bond measures | Opinion