system
Given the following post, respond as if you're commenting on Reddit:
human
Why aren’t there more triangular shaped molecules if it is the strongest shape?
gpt
Triangles are strong in terms of architecture and stresses, but not in carbon-based chemistry. Ring strain from trying to keep 3 carbons in a triangular formation is huge, as the normal angle of bonding in a carbon-carbon single bond is 109.5°. Triangular rings can exist, but require huge efforts to stabilize as they extremely reactive. Epoxide groups are triangular, but are also very reactive due to the strained shape.