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Compare Experimental Geometries - experimental data

Species Name
C4H8 cyclobutane
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 1.555 1998Kuc   1 3   
rCH 1.093 1998Kuc axial H 1 5   
rCH 1.091 1998Kuc equatorial H 1 6   
aHCC 119.9 1998Kuc axial 1 3 10  
aHCC 130.7 1998Kuc equatorial 1 3 9  
dCCCC 27.5 1987Ega/Fuk:6018   1 3 2 4

picture of
1987Ega/Fuk:6018 T Egawa, T Fukuyama, S Yamamoto, F Tkabayashi, H Kambara, T Ueda, K Kuchitsu "Molecular structure and puckering potential function of cyclobutane studied by gas electron diffraction and infrared spectroscopy" J. Chem. Phys. 86(11), 6018, 1987
1998Kuc K Kuchitsu(ed) "Structure of Free Polyatomic Molecules - Basic Data" Springer, Berlin, 1998