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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: CCSD=FULL/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 CCSD=FULL/Def2TZVPP
 hartrees
Energy at 0K-116.434693
Energy at 298.15K-116.437950
HF Energy-115.868970
Nuclear repulsion energy64.005008
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/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 3345 3345 0.47      
2 A1 3098 3098 55.08      
3 A1 1729 1729 17.87      
4 A1 1551 1551 1.04      
5 A1 1179 1179 0.02      
6 A1 946 946 4.00      
7 A2 1040 1040 0.00      
8 A2 888 888 0.00      
9 B1 3168 3168 34.61      
10 B1 1134 1134 2.15      
11 B1 624 624 84.06      
12 B2 3299 3299 0.84      
13 B2 1101 1101 25.48      
14 B2 1061 1061 28.55      
15 B2 816 816 16.70      

Unscaled Zero Point Vibrational Energy (zpe) 12489.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12489.8 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 CCSD=FULL/Def2TZVPP
ABC
1.01182 0.73514 0.46497

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.861
C2 0.000 0.646 -0.499
C3 0.000 -0.646 -0.499
H4 0.000 1.572 -1.036
H5 0.000 -1.572 -1.036
H6 0.910 0.000 1.449
H7 -0.910 0.000 1.449

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50601.50602.46392.46391.08321.0832
C21.50601.29161.07062.28212.24532.2453
C31.50601.29162.28211.07062.24532.2453
H42.46391.07062.28213.14463.07823.0782
H52.46392.28211.07063.14463.07823.0782
H61.08322.24532.24533.07823.07821.8195
H71.08322.24532.24533.07823.07821.8195

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.607 C1 C2 H4 145.467
C1 C3 C2 64.607 C1 C3 H5 145.467
C2 C1 C3 50.785 C2 C1 H6 119.366
C2 C1 H7 119.366 C2 C3 H5 149.926
C3 C1 H6 119.366 C3 C1 H7 119.366
C3 C2 H4 149.926 H6 C1 H7 114.248
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability