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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: CCSD=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at CCSD=FULL/6-31G*
 hartrees
Energy at 0K-116.246378
Energy at 298.15K-116.249594
HF Energy-115.821754
Nuclear repulsion energy63.714976
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 CCSD=FULL/6-31G*
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 3346 3178 0.00      
2 A1 3099 2943 55.60      
3 A1 1751 1664 12.94      
4 A1 1573 1494 3.09      
5 A1 1208 1148 0.50      
6 A1 956 908 3.53      
7 A2 1042 989 0.00      
8 A2 831 790 0.00      
9 B1 3163 3005 52.05      
10 B1 1141 1084 1.92      
11 B1 586 557 74.01      
12 B2 3301 3136 0.16      
13 B2 1114 1058 31.36      
14 B2 1074 1020 26.43      
15 B2 822 780 12.33      

Unscaled Zero Point Vibrational Energy (zpe) 12503.6 cm-1
Scaled (by 0.9498) Zero Point Vibrational Energy (zpe) 11875.9 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 CCSD=FULL/6-31G*
ABC
0.99941 0.73172 0.46135

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.860
C2 0.000 0.649 -0.500
C3 0.000 -0.649 -0.500
H4 0.000 1.585 -1.040
H5 0.000 -1.585 -1.040
H6 0.914 0.000 1.461
H7 -0.914 0.000 1.461

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50761.50762.47462.47461.09361.0936
C21.50761.29891.07992.29852.25922.2592
C31.50761.29892.29851.07992.25922.2592
H42.47461.07992.29853.16943.09903.0990
H52.47462.29851.07993.16943.09903.0990
H61.09362.25922.25923.09903.09901.8275
H71.09362.25922.25923.09903.09901.8275

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.483 C1 C2 H4 145.522
C1 C3 C2 64.483 C1 C3 H5 145.522
C2 C1 C3 51.034 C2 C1 H6 119.726
C2 C1 H7 119.726 C2 C3 H5 149.996
C3 C1 H6 119.726 C3 C1 H7 119.726
C3 C2 H4 149.996 H6 C1 H7 113.341
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability