Earlier, I constructed a possible model of hydronium hydroxide, or H 3O+.OH - One way of assessing the quality of the model is to calculate the free energy difference between it and two normal wat...
Read It Review ItThe Modern Periodic Table, the bedrock of all of Chemistry, has some minor anomalies. The position of Hydrogen is not justified as it resembles both alkali metals and halogens. Helium is placed i...
Read It Review ItI love experiments where the insight-to-time-taken ratio is high. This one pertains to exploring the coordination chemistry of the transition metal region of the periodic table; specifically the te...
Read It Review ItAllotropes are differing structural forms of the elements. The best known example is that of carbon, which comes as diamond and graphite, along with the relatively recently discovered fullerenes an...
Read It Review ItI noted previously that some 8-ring cyclic compounds could exist in either a planar-aromatic or a non-planar-non-aromatic mode, the mode being determined by apparently quite small changes in a ring...
Read It Review ItThis is rather cranking the handle, but taking my previous post and altering the search definition of the crystal structure database from 4- to 5-coordinate metals, one gets the following. Fe … ...
Read It Review ItThe reduction of cinnamaldehyde by lithium aluminium hydride (LAH) was reported in a classic series of experiments[1],[2],[3] dating from 1947-8. The reaction was first introduced into the organic ...
Read It Review ItValence shell electron pair repulsion theory is a simple way of rationalising the shapes of many compounds in which a main group element is surrounded by ligands. ClF3 is a good illustration of thi...
Read It Review ItNo doubt answers to the question posed in the previous post are already being obtained by experiment. Just in case that does not emerge in the next day or so, I offer a prediction here. The methodo...
Read It Review ItHCN is a weak acid (pKa +9.2, weaker than e.g. HF), although it does have an isomer, isocyanic acid or HNC (pka < +9.2 ?) which is simultaneously stronger and less stable. I conclude my halide a...
Read It Review ItWhy is this post orphaned from the previous? In order to have the opportunity of noting that treating iodine computationally can be a little different from the procedures used for F, Cl and Br. As ...
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