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Compare Experimental Geometries - experimental data

Species Name
CH2I2 Diiodomethane
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
rCI 2.135 1998Kis/Psz:283-290   1 2   
aICI 113.9 1998Kis/Psz:283-290   2 1 3  
rCH 1.066 1998Kis/Psz:283-290 r0 1 4   
aHCH 111.6 1998Kis/Psz:283-290   4 1 5  

picture of
1998Kis/Psz:283-290 Z Kisiel, L Pszczołkowski, LB Favero, W Caminati "Rotational Spectrum of CD2I2: An Isotopomer of the First Molecule Containing Two Iodine Nuclei Investigatedby Microwave Spectroscopy" J. MOL. SPECT. 189,283 – 290 ( 1998 )