In conclusion, it is thus observed how In -stable anion series should be of the I2n+1 -type, being bent molecules preferred over linear ones for molecules containing more than 3 centers; i.e. beyond I3 -. This does not stem from the formal necessity of polyiodides to derive from I2 and I - building blocks, but rather from the fact that anions of the I2n+1 -series have an even number of bonding electrons to be distributed among an even number of bonds along the chain. This is required by the 3c-4e bonding per se in I3 -or stems from partial donation of some LEPs into EDMB in bent polyiodides, ultimately leading to 2n electrons distributed in n bonds. Chains of odd electron counts, I2n -polyiodides, do not have access to such a stabilization process and are not encountered in Nature.