Monday, October 01, 2018

[ercjgetd] Pictures of molecules

Of increasing fidelity:

  1. molecular formula C3H8
  2. condensed formula CH3CH2CH3
  3. structural formula (2D diagram)
  4. structural formula with chirality indicated, e.g., Natta projection
  5. 3D diagram (e.g., ball and stick, or space filling), perhaps VR
  6. 3D animated diagram, showing the molecule rotating around all single bonds, cyclohexane changing confirmations
  7. animation accurately modeling stearic hindrance, wandering among conformations accurately according to expected probability.
  8. carboxylic acid (COOH) and similar (phosphoric acid) in aqueous solution: animation includes proton repeatedly popping off and reattaching to the other oxygen.

1 through 5 are common in print; the latter become possible with electronic presentation.

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