Chloroform 3D Molecular Model — CAS 67-66-3
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Free educational Chloroform model (CHCl3, CAS 67-66-3) with an engraved element symbol on every atom.
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Chloroform (CHCl3, CAS 67-66-3) — a free educational 3D molecular model for teachers and students, by MolGod.org. Each atom is labelled with its own engraved element symbol: no colour chart needed.
Chloroform has no rings at all: its 5 atoms form an open chain held together by 4 bonds (all of them single). Give each pair of students the model and a blank sheet: recording every engraved symbol should lead them to 1 C + 1 H + 3 Cl, which is 5 atoms. On the printed model, students can point to the three C-Cl bonds. Lesson link: organohalogen compounds and carbon-halogen bonds. Ask the class why this molecule cannot hydrogen-bond to itself: the computed count of donors and acceptors is zero.
This model is part of the free MolGod.org collection of engraved molecules for education. Teachers: pair it with the MolGod.org record to connect the 3D shape with identifiers and data.
Full record and more free models: https://molgod.org/molecule/67-66-3/?utm_source=printables&utm_medium=referral&utm_campaign=edu-3d-models
Licence & provenance: https://molgod.org/licenses/stl/67-66-3/
Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Chloroform-3D-molecular-model-engraved-CAS-67-66-3.stl
A ball-and-stick model of Chloroform with each element symbol recessed into its atom sphere, generated by MolGod.org from a PubChem-computed 3D conformer (not an experimental crystal structure); atomic coordinates and connectivity are unchanged. STL mesh: 77,668 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer.
Names in other languages: chloroforme (fr); cloroformio (it); 氯仿 (zh).
Chemical identity
CAS Registry Number: 67-66-3
Molecular formula: CHCl3
Molar mass: 119.37 g/mol (exact mass 117.914383)
IUPAC name: chloroform
MolGod ID: MG_345-434-976-05 (https://molgod.org/id/MG_345-434-976-05)
PubChem CID: 6212 (https://pubchem.ncbi.nlm.nih.gov/compound/6212)
Wikidata: Q172275 (https://www.wikidata.org/wiki/Q172275)
EC number: 200-663-8
ChemSpider ID: 5977
InChIKey: HEDRZPFGACZZDS-UHFFFAOYSA-N
SMILES: C(Cl)(Cl)Cl
Required attribution (CC BY-SA 4.0): "Chloroform 3D model by MolGod.org — https://molgod.org/molecule/67-66-3/ — CC BY-SA 4.0"
Licence text: https://creativecommons.org/licenses/by-sa/4.0/