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Compare Experimental Geometries - experimental data

Species Name
CH3CH(CH3)CH3 Isobutane
The following table lists the experimentally determined internal coordinates. Coordinate descriptions starting with "r" are bond lengths, starting with "a" are bond angles, and starting with "d" are dihedral angles. Atom numbers are the numbers on the picture of the molecule below to indicate which atoms are invloved in the bond or angle.
Units: bond lengths are in Å, angles are in degrees.
description Value Reference Comment Atom number
rCC 1.525 1976Hellwege(II/7)   1 3   
rCH 1.108 1976Hellwege(II/7)   1 2   
rCH 1.100 1976Hellwege(II/7) symmetric 3 6   
rCH 1.092 1976Hellwege(II/7) anti 3 9   
aCCC 111.2 1976Hellwege(II/7)   3 1 4  
aHCC 109.4 1976Hellwege(II/7)   2 1 3  
aHCH 108.5 1976Hellwege(II/7) anti-anti 9 3 10  
aHCH 107.9 1976Hellwege(II/7) anti-sym 6 3 9  

picture of
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.