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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: CCSD=FULL/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 CCSD=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-116.436424
Energy at 298.15K-116.439684
HF Energy-115.866526
Nuclear repulsion energy64.111149
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/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 3171 0.61      
2 A1 3108 2955 55.78      
3 A1 1738 1653 18.36      
4 A1 1552 1476 0.85      
5 A1 1186 1128 0.00      
6 A1 950 904 3.99      
7 A2 1043 992 0.00      
8 A2 878 835 0.00      
9 B1 3154 3000 33.23      
10 B1 1125 1070 1.86      
11 B1 618 588 81.49      
12 B2 3273 3113 0.94      
13 B2 1097 1044 16.29      
14 B2 1060 1008 37.45      
15 B2 815 775 15.61      

Unscaled Zero Point Vibrational Energy (zpe) 12466.2 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 11855.3 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 CCSD=FULL/aug-cc-pVTZ
ABC
1.01505 0.73775 0.46665

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.859
C2 0.000 0.645 -0.499
C3 0.000 -0.645 -0.499
H4 0.000 1.570 -1.034
H5 0.000 -1.570 -1.034
H6 0.909 0.000 1.447
H7 -0.909 0.000 1.447

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50301.50302.45972.45971.08261.0826
C21.50301.28911.06942.27862.24222.2422
C31.50301.28912.27861.06942.24222.2422
H42.45971.06942.27863.14063.07373.0737
H52.45972.27861.06943.14063.07373.0737
H61.08262.24222.24223.07373.07371.8185
H71.08262.24222.24223.07373.07371.8185

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.606 C1 C2 H4 145.436
C1 C3 C2 64.606 C1 C3 H5 145.436
C2 C1 C3 50.788 C2 C1 H6 119.368
C2 C1 H7 119.368 C2 C3 H5 149.958
C3 C1 H6 119.368 C3 C1 H7 119.368
C3 C2 H4 149.958 H6 C1 H7 114.243
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability