The structure is isoelectronic with C 2 H 6 2 +, which would arise from the diprotonation of the planar molecule ethene.
12.
These molecules are mostly polycyclic, aromaticity | aromatic, and planar molecules, and include ethidium, proflavin, daunomycin, doxorubicin and thalidomide.
13.
A significant advance was the structure of phthalocyanine, a large planar molecule that is closely related to porphyrin molecules important in biology, such as heme, corrin and chlorophyll.
14.
It is a planar molecule with short C-S and C-N distances ( 1.69, 1.38 ? resp . ) indicative of multiple C-S and C-N bonding.
15.
For example, COF 2 is a trigonal planar molecule and C has an electronegativity of 2.55, F of 3.98, and O of 3.44 ( I don't remember the units ).
16.
As verified by X-ray crystallography, it is a planar molecule with N-N, N-C, and C = O distances of 1.38, 1.33 and 1.24 ? respectively.
17.
SiO condensed with Cl 2 or COS, followed by irradiation with light, the planar molecules OSiF 2, ( Si-O 148 pm ); OSiCl 2, ( Si-O 149 pm ) and linear OSiS ( Si-O 149 pm, Si-S 190 pm ) are produced.
