| May 2 2014 3:08PM |
High |
Acknowledged |
MnCl2 is represented with covalent bonds rather than ionic ones.
Unless I'm missing something, corrections are needed to the image as well as molecular and SMILES formulas.
Thank you for your comment. There are often examples where a compound might have two records in ChemSpider one which shows the compound as ions and another which shows it as a covalent species, this reflects the difficulty of defining a meaningful boundary between ionic and covalent bonding, and in many respects we don't want to specify whether a species should be considered as ions or as having covalent bonds (it may depend on a number of factors), instead we want to provide a record that brings useful data about a species together in one record.
To that end we've tended to favour covalent representations for simple transition metal compounds (cf InCl3, YbCl3, SnCl4 and also AlCl3) and ions for compounds that contain salts containing sodium, potassium (and other group 1 and 2 elements), to try and give some consistency across the database. We understand that this is an imperfect solution in some circumstances and we may change in the future. |