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II.A.3. (XII.A.1.)

Listing of experimental geometry data for SiF2 (Silicon difluoride)

Rotational Constants (cm-1)
See section I.F.4 to change rotational constant units
A B C
1.02078 0.29432 0.22783
Rotational Constants from NISTtriatomic
Calculated rotational constants for SiF2 (Silicon difluoride).

Point Group C2v

Internal coordinates (distances (r) in Å) (angles (a) in degrees) (dihedrals (d) in degrees)
Description Value Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rFSi 1.590 1 2 1976Hellwege(II/7) re
aFSiF 100.77 2 1 3 1976Hellwege(II/7)
picture of Silicon difluoride

Bond descriptions
Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
F-Si 2

Atom x (Å) y (Å) z (Å)
Si1 0.0000 0.0000 0.5703
F2 0.0000 1.2249 -0.4436
F3 0.0000 -1.2249 -0.4436

Atom - Atom Distances (Å)
  Si1 F2 F3
Si11.59011.5901
F21.59012.4499
F31.59012.4499

Calculated geometries for SiF2 (Silicon difluoride).


References
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squib reference DOI
1976Hellwege(II/7) Hellwege, KH and AM Hellwege (ed.). Landolt-Bornstein: Group II: Atomic and Molecular Physics Volume 7: Structure Data of Free Polyatomic Molecules. Springer-Verlag. Berlin. 1976.  
NISTtriatomic NIST Triatomic Spectral Database (http://www.physics.nist.gov/PhysRefData/MolSpec/Triatomic/index.html)  

Got a better number? Please email us at cccbdb@nist.gov


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