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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: CID/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-116.314500
Energy at 298.15K-116.317814
HF Energy-115.865997
Nuclear repulsion energy64.314524
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/cc-pVTZ
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 3414 3163 0.75      
2 A1 3155 2923 61.47      
3 A1 1792 1660 17.51      
4 A1 1583 1467 1.59      
5 A1 1214 1125 0.02      
6 A1 970 899 3.96      
7 A2 1061 983 0.00      
8 A2 916 849 0.00      
9 B1 3224 2987 39.95      
10 B1 1156 1071 2.35      
11 B1 641 594 83.90      
12 B2 3363 3116 1.42      
13 B2 1133 1050 23.88      
14 B2 1100 1019 33.06      
15 B2 846 784 17.84      

Unscaled Zero Point Vibrational Energy (zpe) 12784.2 cm-1
Scaled (by 0.9265) Zero Point Vibrational Energy (zpe) 11844.5 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/cc-pVTZ
ABC
1.02387 0.74108 0.46951

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

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 -0.498
C3 0.000 -0.641 -0.498
H4 0.000 1.566 -1.031
H5 0.000 -1.566 -1.031
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
C11.49841.49842.45282.45281.08081.0808
C21.49841.28261.06742.27062.23852.2385
C31.49841.28262.27061.06742.23852.2385
H42.45281.06742.27063.13143.06783.0678
H52.45282.27061.06743.13143.06783.0678
H61.08082.23852.23853.06783.06781.8115
H71.08082.23852.23853.06783.06781.8115

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.661 C1 C2 H4 145.342
C1 C3 C2 64.661 C1 C3 H5 145.342
C2 C1 C3 50.677 C2 C1 H6 119.549
C2 C1 H7 119.549 C2 C3 H5 149.997
C3 C1 H6 119.549 C3 C1 H7 119.549
C3 C2 H4 149.997 H6 C1 H7 113.860
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability