Magnesium hexafluorosilicate

CAS 16949-65-8  ·  F₆MgSi  ·  MW 166.38 g/mol

Loading molecule...
3D model Magnesium hexafluorosilicate, CAS 16949-65-8, molecular formula F₆MgSi, molar mass 166.38 g/mol
About Magnesium hexafluorosilicate

Magnesium hexafluorosilicate is a chemical compound registered under number CAS 16949-65-8, with the molecular formula F₆MgSi, and a molar mass of 166.38 g/mol.

The molecule contains 8 atoms connected by 6 chemical bonds. The full systematic IUPAC name of this compound is magnesium hexafluorosilicon(2-). The interactive 3D model above lets you view the spatial arrangement of the atoms — you can rotate it with the mouse, zoom with the scroll wheel, and switch between skeletal / Ball & Stick / Space Fill visualization modes.

In terms of physicochemical properties, polar surface area PSA = 0 Ų, 0 donors and 7 hydrogen bond acceptors. These parameters are key when assessing bioavailability and interaction with biomolecules.

Chemical data for this compound comes from PubChem (NIH NLM NCBI), one of the world's largest chemical databases. All information is updated automatically and enriched with GHS hazard statement translations compliant with the CLP Regulation (EC 1272/2008). The widget above may be used for educational, research and commercial purposes.

Physicochemical properties
Molecular formulaF₆MgSi
Molar mass166.38 g/mol
IUPACmagnesium hexafluorosilicon(2-)
SMILESF[Si-2](F)(F)(F)(F)F.[Mg+2]
InChIKeyINWUJAAIUAAHJA-UHFFFAOYSA-N
logP (XLogP3)—
PSA0 Ų
HBD / HBA0 / 7
PubChem CIDCID 61861 ↗
GHS safety

Signal word: Danger

GHS06
GHS06

H301 — Toxic if swallowed

Scientific literature

Brak articles naukowych dla CAS 16949-65-8 w PubMed / OpenAlex / Semantic Scholar.

Synonyms
Magnesium hexafluorosilicate · Magnesium fluorosilicate · Caswell No. 532 · Hexafluorosilicate(2-) magnesium (1:1) · Fluosilicate de magnesium [French] · Fluosilicate de magnesium · Silicate(2-), hexafluoro-, magnesium (1:1) · EINECS 241-022-2 · UN2853 · EPA Pesticide Chemical Code 075304 · UNII-H37V80D2JS · MAGNESIUM HEXAFLUOROSILICATE [MI] · EC 241-022-2 · MAGNESIUM SILICOFLUORIDE, (SOLID) · MAGNESIUM SILICOFLUORIDE, [SOLID]
Data sources
Related molecules
📜 License & provenancePREDICTED MODEL · NOT VERIFIEDMolGod_License_1
PREDICTED MODEL — NOT VERIFIED
computed by MolGod Scientific · experimental feature (beta) · may contain errors
ILLUSTRATIVE FRAGMENT ARRANGEMENT — relative positions are not structural data

No source 3-D conformer was available to MolGod for this substance. MolGod Scientific computed this geometry from the structural formula with RDKit 2026.03.6 (ETKDGv3 conformer generation, MMFF94 force-field optimisation; lowest-energy converged conformer of a fixed-seed set). It is not a measured structure, it does not come from PubChem, and it has not been compared with experimental data. It shows one possible conformation.

This substance consists of 2 separate components (for example ions). Each component was computed separately; they are arranged radially around a layout anchor for visualisation only (at least 3.0 Å apart). Their relative positions are not a crystal structure, coordination geometry, ionic contacts or any experimentally determined arrangement.

1 stereo element(s) undefined in the source record (1 stereocentre(s), 0 double-bond E/Z) were assigned arbitrarily; the model shows one stereoisomer only, which may not be the naturally occurring or commercial form.

Methods and references
  1. RDKit: Open-source cheminformatics, version 2026.03.6. Zenodo. doi:10.5281/zenodo.22140358 (all versions: doi:10.5281/zenodo.591637)
  2. Riniker S, Landrum GA. Better Informed Distance Geometry: Using What We Know To Improve Conformation Generation. J. Chem. Inf. Model. 2015, 55, 2562-2574. doi:10.1021/acs.jcim.5b00654
  3. Wang S, Witek J, Landrum GA, Riniker S. Improving Conformer Generation for Small Rings and Macrocycles Based on Distance Geometry and Experimental Torsional-Angle Preferences. J. Chem. Inf. Model. 2020, 60, 2044-2058. doi:10.1021/acs.jcim.0c00025
  4. Halgren TA. Merck molecular force field. I. Basis, form, scope, parameterization, and performance of MMFF94. J. Comput. Chem. 1996, 17, 490-519. doi:10.1002/(SICI)1096-987X(199604)17:5/6<490::AID-JCC1>3.0.CO;2-P
  5. Tosco P, Stiefl N, Landrum G. Bringing the MMFF force field to the RDKit: implementation and validation. J. Cheminform. 2014, 6, 37. doi:10.1186/s13321-014-0037-3
  6. Heller SR, McNaught A, Pletnev I, Stein S, Tchekhovskoi D. InChI, the IUPAC International Chemical Identifier. J. Cheminform. 2015, 7, 23. doi:10.1186/s13321-015-0068-4
  7. Kim S, Chen J, Cheng T, et al. PubChem 2025 update. Nucleic Acids Res. 2025, 53, D1516-D1525. doi:10.1093/nar/gkae1059 Compound record: https://pubchem.ncbi.nlm.nih.gov/compound/61861
  8. Bolton EE, Kim S, Bryant SH. PubChem3D: Conformer generation. J. Cheminform. 2011, 3, 4. doi:10.1186/1758-2946-3-4 (cited for contrast: no source 3-D conformer was available to MolGod for this record)
Magnesium hexafluorosilicate (CAS 16949-65-8), F₆MgSi - 3D ball-and-stick molecular model, engraved element symbols (F Mg Si), MolGod STL previewDownload image

MG-STL-16949-65-8-ENGRAVED · 123,000 △ · 6 MB · SHA-256 6ba44f527c9f3899

Download 3D model · ENGRAVED · F Mg Si

Magnesium hexafluorosilicate (CAS 16949-65-8), F₆MgSi - 3D ball-and-stick molecular model, MolGod STL previewDownload image

MG-STL-16949-65-8-NORMAL · 3,136 △ · 153 KB · SHA-256 d49c3d77cd4b32f8

Download 3D model

Model
Magnesium hexafluorosilicate · 16949-65-8
InChIKey
INWUJAAIUAAHJA-UHFFFAOYSA-N
License
CC BY-SA 4.0 International (source rights undetermined — not yet granted)
Attribution
MolGod Scientific — Magnesium hexafluorosilicate (CAS 16949-65-8)
License & provenance record
Magnesium hexafluorosilicate (CAS 16949-65-8) →
MolGod molecule record
Magnesium hexafluorosilicate →
Source data
PubChem CID 61861 ↗
Model information
STL generated by MolGod · MolGod STL Exporter build 48804cd20b0d · generated 2026-10-14
SHA-256 (STL)
d49c3d77cd4b32f8f93f4b7f2004c7389f9b3087151603226e582f7d1c178b07
MD5 (STL)
670a64733a435b1b43655a80b95680e2
Model identifier
MG-STL-16949-65-8
Transformation
MolGod Scientific ball-and-stick mesh
Changes
PREDICTED geometry computed by MolGod Scientific (RDKit), NOT verified; rendered as a triangulated mesh.
Wikimedia Commons
not published yet

This license applies to the MolGod-created STL mesh, not automatically to third-party source material.

—