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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: CID/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-116.317050
Energy at 298.15K-116.320362
HF Energy-115.869531
Nuclear repulsion energy64.320793
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/Def2TZVPP
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 3416 3416 0.81      
2 A1 3160 3160 60.13      
3 A1 1793 1793 18.40      
4 A1 1586 1586 1.42      
5 A1 1211 1211 0.00      
6 A1 969 969 3.98      
7 A2 1063 1063 0.00      
8 A2 924 924 0.00      
9 B1 3230 3230 37.50      
10 B1 1158 1158 2.45      
11 B1 648 648 89.29      
12 B2 3368 3368 1.68      
13 B2 1134 1134 25.55      
14 B2 1094 1094 30.09      
15 B2 844 844 18.71      

Unscaled Zero Point Vibrational Energy (zpe) 12798.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12798.8 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/Def2TZVPP
ABC
1.02427 0.74109 0.46959

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.857
C2 0.000 0.641 -0.497
C3 0.000 -0.641 -0.497
H4 0.000 1.565 -1.032
H5 0.000 -1.565 -1.032
H6 0.906 0.000 1.446
H7 -0.906 0.000 1.446

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.49841.49842.45312.45311.08051.0805
C21.49841.28241.06752.27022.23802.2380
C31.49841.28242.27021.06752.23802.2380
H42.45311.06752.27023.13033.06773.0677
H52.45312.27021.06753.13033.06773.0677
H61.08052.23802.23803.06773.06771.8114
H71.08052.23802.23803.06773.06771.8114

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.664 C1 C2 H4 145.389
C1 C3 C2 64.664 C1 C3 H5 145.389
C2 C1 C3 50.671 C2 C1 H6 119.530
C2 C1 H7 119.530 C2 C3 H5 149.947
C3 C1 H6 119.530 C3 C1 H7 119.530
C3 C2 H4 149.947 H6 C1 H7 113.906
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability