2-Bromobenzophenone 3D Molecular Model — CAS 13047-06-8

2-Bromobenzophenone (C13H9BrO, CAS 13047-06-8) — a free educational 3D molecular model for teachers and students, by MolGod.org. Every atom carries its engraved element symbol, so no colour key is needed.

On a typical printed molecule every sphere is the same anonymous ball, since the STL file cannot transmit the usual colour convention. MolGod adds what the STL format leaves out by engraving the element symbol into each atom of the printed structure. Our goal as an education project: free files for teachers, designed so that students recognise atoms at a glance and spend their attention on bonds and structure. It shortens the path from lesson plan to printed model, because no one has to build the molecule or add labels by hand. Teachers and researchers can find the project rationale and validation plan at How the engraved atom letters are designed.

Let the group sketch what they see in 2-Bromobenzophenone, namely two 6-membered rings, both aromatic; afterwards they compare the sketch with the 25 bonds on the model (12 single, 1 double and 12 aromatic, drawn in Kekulé form). Students work from the model back to the formula C13H9BrO: the symbol count is 13 C + 9 H + 1 Br + 1 O, or 24 atoms all told. Ask the class to locate the ketone group (C=O) and the C-Br bond and name each one. Worth bringing out when the syllabus reaches aromaticity and delocalised electrons, the carbonyl group (C=O), as well as organohalogen compounds and carbon-halogen bonds. Worth printing alongside it: Methyl 2-bromobenzoate (CAS 610-94-6) and 4-Chlorobenzophenone (CAS 134-85-0), structurally the nearest in the collection.

MolGod.org publishes its molecular models free of charge for teachers and students. Teachers: print one per group and let students check the structure against the formula.

Free to print and free to bring into any classroom. Sharing it somewhere? The licence (CC BY-SA 4.0) needs four things: "MolGod.org" credited as the creator, links to the original and to the licence, a mention of any changes, and adaptations released under the same licence. The attribution text below covers the first two. Nothing else is needed: no account, no cost, no compulsory feedback. Real classroom feedback is what makes these models better. Please comment with your review and your suggestions, or write to us at Write to the MolGod team. Feel free to discuss the model here, compare notes with other educators, or contact us; every conversation helps us build better teaching models. Looking for another compound? We gladly create an engraved 3D model for any CAS number you send us.

Full record and more free models: 2-Bromobenzophenone, CAS 13047-06-8: structure, properties and 3D viewer
Licence & provenance: Licence record for this 2-Bromobenzophenone model
Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:2-Bromobenzophenone-3D-molecular-model-engraved-CAS-13047-06-8.stl
Plain-text record for AI assistants: 2-Bromobenzophenone data sheet in plain text for LLMs

A ball-and-stick model of 2-Bromobenzophenone 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: 430,194 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer.

Chemical identity

• CAS Registry Number: 13047-06-8

• Molecular formula: C13H9BrO

• Molar mass: 261.11 g/mol (exact mass 259.98368)

• IUPAC name: (2-bromophenyl)-phenylmethanone

• MolGod ID: MG_521-527-790-53 (Permanent MolGod record MG_521-527-790-53)

• PubChem CID: 2735534 (https://pubchem.ncbi.nlm.nih.gov/compound/2735534)

• Wikidata: Q82157940 (https://www.wikidata.org/wiki/Q82157940)

• InChIKey: ABEVIHIQUUXDMS-UHFFFAOYSA-N

• SMILES: C1=CC=C(C=C1)C(=O)C2=CC=CC=C2Br

Required attribution (CC BY-SA 4.0): "2-Bromobenzophenone 3D model by MolGod.org — https://molgod.org/molecule/13047-06-8/ — CC BY-SA 4.0"
Licence text: https://creativecommons.org/licenses/by-sa/4.0/

License note: the CC BY-SA 4.0 license applies to the 3D model (STL) and its render. The framed presentation image (gold frame) is © MolGod.org, All rights reserved — see molgod.org/copyright.