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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: CID/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at CID/daug-cc-pVDZ
 hartrees
Energy at 0K-116.228478
Energy at 298.15K-116.231733
HF Energy-115.836384
Nuclear repulsion energy63.543889
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CID/daug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3395 3395 0.39      
2 A1 3139 3139 65.13      
3 A1 1770 1770 19.58      
4 A1 1558 1558 1.82      
5 A1 1200 1200 0.00      
6 A1 951 951 3.32      
7 A2 1041 1041 0.00      
8 A2 856 856 0.00      
9 B1 3214 3214 40.51      
10 B1 1126 1126 1.97      
11 B1 602 602 87.85      
12 B2 3347 3347 0.91      
13 B2 1107 1107 27.33      
14 B2 1069 1069 24.73      
15 B2 825 825 17.85      

Unscaled Zero Point Vibrational Energy (zpe) 12599.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12599.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CID/daug-cc-pVDZ
ABC
0.99663 0.72543 0.45851

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.866
C2 0.000 0.651 -0.502
C3 0.000 -0.651 -0.502
H4 0.000 1.585 -1.045
H5 0.000 -1.585 -1.045
H6 0.917 0.000 1.462
H7 -0.917 0.000 1.462

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.51511.51512.48212.48211.09331.0933
C21.51511.30131.07992.30012.26322.2632
C31.51511.30132.30011.07992.26322.2632
H42.48211.07992.30013.16923.10383.1038
H52.48212.30011.07993.16923.10383.1038
H61.09332.26322.26323.10383.10381.8332
H71.09332.26322.26323.10383.10381.8332

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.568 C1 C2 H4 145.568
C1 C3 C2 64.568 C1 C3 H5 145.568
C2 C1 C3 50.863 C2 C1 H6 119.493
C2 C1 H7 119.493 C2 C3 H5 149.864
C3 C1 H6 119.493 C3 C1 H7 119.493
C3 C2 H4 149.864 H6 C1 H7 113.932
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability