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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: CCD/aug-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 CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-116.377275
Energy at 298.15K-116.380519
HF Energy-115.866164
Nuclear repulsion energy63.912106
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 CCD/aug-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 3335 3191 0.44      
2 A1 3095 2962 54.64      
3 A1 1733 1658 17.77      
4 A1 1544 1478 0.95      
5 A1 1179 1128 0.00      
6 A1 942 902 3.88      
7 A2 1034 989 0.00      
8 A2 866 829 0.00      
9 B1 3166 3030 33.01      
10 B1 1119 1071 1.78      
11 B1 605 579 81.87      
12 B2 3286 3145 0.93      
13 B2 1094 1047 18.54      
14 B2 1058 1012 32.60      
15 B2 814 779 16.30      

Unscaled Zero Point Vibrational Energy (zpe) 12434.0 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 11899.3 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 CCD/aug-cc-pVTZ
ABC
1.00972 0.73256 0.46370

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.862
C2 0.000 0.646 -0.500
C3 0.000 -0.646 -0.500
H4 0.000 1.575 -1.038
H5 0.000 -1.575 -1.038
H6 0.912 0.000 1.452
H7 -0.912 0.000 1.452

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50811.50812.46822.46821.08601.0860
C21.50811.29211.07342.28542.24962.2496
C31.50811.29212.28541.07342.24962.2496
H42.46821.07342.28543.15043.08423.0842
H52.46822.28541.07343.15043.08423.0842
H61.08602.24962.24963.08423.08421.8240
H71.08602.24962.24963.08423.08421.8240

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.634 C1 C2 H4 145.416
C1 C3 C2 64.634 C1 C3 H5 145.416
C2 C1 C3 50.733 C2 C1 H6 119.381
C2 C1 H7 119.381 C2 C3 H5 149.950
C3 C1 H6 119.381 C3 C1 H7 119.381
C3 C2 H4 149.950 H6 C1 H7 114.229
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability