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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: CCSD(T)=FULL/daug-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(T)=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-116.464329
Energy at 298.15K-116.467486
HF Energy-115.866071
Nuclear repulsion energy63.868796
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(T)=FULL/daug-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 3292 3292        
2 A1 3180 3180        
3 A1 1685 1685        
4 A1 1496 1496        
5 A1 1004 1004        
6 A1 783 783        
7 A2 1026 1026        
8 A2 850 850        
9 B1 3129 3129        
10 B1 1105 1105        
11 B1 595 595        
12 B2 3244 3244        
13 B2 1107 1107        
14 B2 1061 1061        
15 B2 840 840        

Unscaled Zero Point Vibrational Energy (zpe) 12198.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12198.4 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(T)=FULL/daug-cc-pVTZ
ABC
1.00507 0.73358 0.46313

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/daug-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 0.648 -0.500
C3 0.000 -0.648 -0.500
H4 0.000 1.577 -1.036
H5 0.000 -1.577 -1.036
H6 0.912 0.000 1.449
H7 -0.912 0.000 1.449

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50871.50872.46802.46801.08451.0845
C21.50871.29641.07242.28882.24752.2475
C31.50871.29642.28881.07242.24752.2475
H42.46801.07242.28883.15383.08143.0814
H52.46802.28881.07243.15383.08143.0814
H61.08452.24752.24753.08143.08141.8240
H71.08452.24752.24753.08143.08141.8240

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.555 C1 C2 H4 145.444
C1 C3 C2 64.555 C1 C3 H5 145.444
C2 C1 C3 50.891 C2 C1 H6 119.252
C2 C1 H7 119.252 C2 C3 H5 150.001
C3 C1 H6 119.252 C3 C1 H7 119.252
C3 C2 H4 150.001 H6 C1 H7 114.477
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability