1,2-Dichloroethane molecular model (C2H4Cl2, CAS 107-06-2): a free, print-ready ball-and-stick model with the element symbol engraved on every atom, designed for chemistry lessons.
1,2-Dichloroethane is a chain molecule with no ring: 7 bonds (all of them single) connect its 8 atoms. Hand the model round and let students tally the engraved atoms: 2 C + 4 H + 2 Cl, 8 in total. Before any theory, let students hunt on the model for the two C-Cl bonds. Plan it into a unit on organohalogen compounds and carbon-halogen bonds. Worth printing alongside it: Dichloromethane (CAS 75-09-2) and 1-Chloro-4-iodobutane (CAS 10297-05-9), structurally the nearest in the collection.
Printing: the STL is in angstrom units - scale it 10x in the slicer (1 angstrom = 10 mm). Use supports under the bonds; PLA works well.
MolGod ID: MG_105-569-074-10
Atomic coordinates: PubChem computed 3D conformer; mesh generated by MolGod's own software. Licence: CC BY-SA 4.0, MolGod.
Full record, safety data and licence page: search "MolGod" with CAS 107-06-2, or see the MolGod profile.
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1,2-Dichloroethane Molecule 3D Model with Engraved Atoms (CAS 107-06-2)
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