{"type":"rich","version":"1.0","title":"#**Ch2:立體化學Stereochemistry**","provider_name":"Coggle","provider_url":"https://coggle.it","thumbnail_url":"https://static.coggle.it/diagram/X1G4J40U1puNQTgs/thumbnail","width":1920,"height":1200,"html":"<iframe width=\"1920\" height=\"1200\" src=\"https://embed.coggle.it/diagram/5f51b8278d14d69b8d41382c\" frameborder=\"0\" allowfullscreen></iframe>"}