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Ethyl (triphenylphosphoranylidene)acetate

by MolGod.org

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Licence	CC BY-SA
Source	Sketchfab
Designer	MolGod.org
Attribution	MolGod.org on Sketchfab · CC-BY-SA 4.0 (attribution + share-alike) · Attribution required
Tags	stl, molecule, teaching, classroom, engraved, education, science, chemistry, ester, 3d-printing, stem, molecular-model

Ethyl (triphenylphosphoranylidene)acetate (C22H21O2P, CAS 1099-45-2) — a free educational 3D molecular model for teachers and students, by MolGod.org. Whatever the filament colour, each atom reads clearly thanks to its engraved symbol. Start with the ring system: Ethyl (triphenylphosphoranylidene)acetate has three 6-membered rings, all of them aromatic; in total the model carries 48 bonds (28 single, 2 double and 18 aromatic, drawn in Kekulé form). A five-minute warm-up: read the symbol on every sphere and write down the totals (22 C + 21 H + 2 O + 1 P = 46 atoms). Before any theory, let students hunt on the model for the ester group (-COO-). Full record and more free models: https://molgod.org/molecule/1099-45-2/?utm_source=sketchfab&utm_medium=referral&utm_campaign=edu-3d-models Licence & provenance: https://molgod.org/licenses/stl/1099-45-2/ Required attribution (CC BY-SA 4.0): "Ethyl (triphenylphosphoranylidene)acetate 3D model by MolGod.org — https://molgod.org/molecule/1099-45-2/ — CC BY-SA 4.0"

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