Bromadiolone 3D Molecular Model — CAS 28772-56-7

Bromadiolone (C30H23BrO4, CAS 28772-56-7) — a free educational 3D molecular model for teachers and students, by MolGod.org. Every sphere shows which element it is through an engraved symbol, not a colour code. Start with the ring system: Bromadiolone has five 6-membered rings, with one pair of rings fused along a shared edge, four of them aromatic; in total the model carries 62 bonds (37 single, 2 double and 23 aromatic). Give each pair of students the model and a blank sheet: recording every engraved symbol should lead them to 30 C + 23 H + 1 Br + 4 O, which is 58 atoms. On the printed model, students can point to the phenolic hydroxyl group (Ar-OH), the hydroxyl group (-OH) and the C-Br bond. Bromadiolone makes an open question in stereochemistry: two stereocentres, configuration not given, and room for students to propose R or S. Plan it into a unit on aromaticity and delocalised electrons, on chirality, enantiomers and CIP (R/S) rules, on fused ring systems, on alcohols and hydrogen bonding, on phenols and hydrogen bonding, as well as on organohalogen compounds and carbon-halogen bonds. This model is part of the free MolGod.org collection of engraved molecules for education. Teachers: use it as a hands-on starter before drawing the structural formula on the board. Full record and more free models: https://molgod.org/molecule/28772-56-7/?utm_source=thingiverse&utm_medium=referral&utm_campaign=edu-3d-models Licence & provenance: https://molgod.org/licenses/stl/28772-56-7/ Same file on Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Bromadiolone-3D-molecular-model-engraved-CAS-28772-56-7.stl A ball-and-stick model of Bromadiolone 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: 799,148 triangles, closed (watertight) single solid. Coordinates in ångström (STL stores no unit) — scale the model deliberately in your slicer. Names in other languages: Bromadiolon (de); 溴敌隆 (zh). Chemical identity - CAS Registry Number: 28772-56-7 - Molecular formula: C30H23BrO4 - Molar mass: 527.4 g/mol (exact mass 526.07797) - IUPAC name: 3-[3-[4-(4-bromophenyl)phenyl]-3-hydroxy-1-phenylpropyl]-4-hydroxychromen-2-one - MolGod ID: MG_740-729-373-14 (https://molgod.org/id/MG_740-729-373-14) - PubChem CID: 54680085 (https://pubchem.ncbi.nlm.nih.gov/compound/54680085) - Wikidata: Q423091 (https://www.wikidata.org/wiki/Q423091) - EC number: 249-205-9 - ChemSpider ID: 10606098 - InChIKey: OWNRRUFOJXFKCU-UHFFFAOYSA-N - SMILES: C1=CC=C(C=C1)C(CC(C2=CC=C(C=C2)C3=CC=C(C=C3)Br)O)C4=C(C5=CC=CC=C5OC4=O)O

Required attribution (CC BY-SA 4.0): "Bromadiolone 3D model by MolGod.org — https://molgod.org/molecule/28772-56-7/ — CC BY-SA 4.0" Licence text: https://creativecommons.org/licenses/by-sa/4.0/