4-Chlorobenzotrichloride — CAS 5216-25-1

4-Chlorobenzotrichloride (C7H4Cl4, CAS 5216-25-1) — 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.

In 4-Chlorobenzotrichloride the ring system sets the overall shape: one aromatic 6-membered ring. Altogether 15 bonds hold the model together (9 single and 6 aromatic). Use the engraved letters like a register: call out each element and tick it off until the class reaches 7 C + 4 H + 4 Cl (15 atoms altogether). Team task: with the model in hand, each group marks the four C-Cl bonds, then writes down what they found. Lesson link: aromaticity and delocalised electrons, as well as organohalogen compounds and carbon-halogen bonds. Place it beside Benzotrichloride (CAS 98-07-7) and 4-Chlorostyrene (CAS 24991-47-7) and ask students which features are shared and which are not.

MolGod.org builds and releases these models at no cost for chemistry teaching. Teachers: pass the model round at the start of the lesson, before showing any diagram.

Full record and more free models: https://molgod.org/molecule/5216-25-1/?utm_source=myminifactory&utm_medium=referral&utm_campaign=edu-3d-models Licence & provenance: https://molgod.org/licenses/stl/5216-25-1/ Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:4-Chlorobenzotrichloride-3D-molecular-model-engraved-CAS-5216-25-1.stl

A ball-and-stick model of 4-Chlorobenzotrichloride 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: 226,358 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer.

Names in other languages: 4-Chlorbenzotrichlorid (de); 4-chloorbenzotrichloride (nl).

Chemical identity - CAS Registry Number: 5216-25-1 - Molecular formula: C7H4Cl4 - Molar mass: 229.9 g/mol (exact mass 229.903761) - IUPAC name: 1-chloro-4-(trichloromethyl)benzene - MolGod ID: MG_191-835-326-67 (https://molgod.org/id/MG_191-835-326-67) - PubChem CID: 21277 (https://pubchem.ncbi.nlm.nih.gov/compound/21277) - Wikidata: Q22338118 (https://www.wikidata.org/wiki/Q22338118) - EC number: 226-009-1 - ChemSpider ID: 20002 - InChIKey: LVZPKYYPPLUECL-UHFFFAOYSA-N - SMILES: C1=CC(=CC=C1C(Cl)(Cl)Cl)Cl

Required attribution (CC BY-SA 4.0): "4-Chlorobenzotrichloride 3D model by MolGod.org — https://molgod.org/molecule/5216-25-1/ — CC BY-SA 4.0" Licence text: https://creativecommons.org/licenses/by-sa/4.0/