Determine point group





Number of atoms 4
Sum formula C2 H2
Molecular weight 26.02









Rotational Analysis
Rotational Constant A (GHz) Not defined
Rotational Constant B (GHz) 35.7728
Rotational Constant C (GHz) 35.7728
Classification : Symmetric top (prolate)




Symmetry adapted cartesian coordinates
Atom Number Atomic Symbol Atomic Number x-Coordinate (Angstrom) y-Coordinate (Angstrom) z-Coordinate (Angstrom)
1 H 1 0.000000 0.000000 -1.650000
2 C 6 0.000000 0.000000 -0.600000
3 C 6 0.000000 0.000000 0.600000
4 H 1 0.000000 0.000000 1.650000









Determined point group : Dh



3N representation
E 2C v i 2S C'2
12 4+ 8cos() 4 0 0 0








Determine point group from cartesian coordinates Character tables for chemically important point groups Determine point group from internal coordinates