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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: MP4=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 MP4=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-116.463087
Energy at 298.15K-116.466295
HF Energy-115.865826
Nuclear repulsion energy63.842271
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 MP4=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 3307 3206        
2 A1 3088 2993        
3 A1 1681 1630        
4 A1 1530 1483        
5 A1 1161 1125        
6 A1 933 905        
7 A2 1029 997        
8 A2 847 821        
9 B1 3139 3043        
10 B1 1107 1073        
11 B1 593 575        
12 B2 3248 3148        
13 B2 1072 1039        
14 B2 1030 999        
15 B2 789 765        

Unscaled Zero Point Vibrational Energy (zpe) 12277.1 cm-1
Scaled (by 0.9693) Zero Point Vibrational Energy (zpe) 11900.2 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 MP4=FULL/aug-cc-pVTZ
ABC
1.00382 0.73319 0.46268

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.863
C2 0.000 0.649 -0.500
C3 0.000 -0.649 -0.500
H4 0.000 1.577 -1.037
H5 0.000 -1.577 -1.037
H6 0.912 0.000 1.450
H7 -0.912 0.000 1.450

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50931.50932.46822.46821.08451.0845
C21.50931.29791.07152.28932.24822.2482
C31.50931.29792.28931.07152.24822.2482
H42.46821.07152.28933.15313.08203.0820
H52.46822.28931.07153.15313.08203.0820
H61.08452.24822.24823.08203.08201.8234
H71.08452.24822.24823.08203.08201.8234

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.534 C1 C2 H4 145.508
C1 C3 C2 64.534 C1 C3 H5 145.508
C2 C1 C3 50.932 C2 C1 H6 119.267
C2 C1 H7 119.267 C2 C3 H5 149.958
C3 C1 H6 119.267 C3 C1 H7 119.267
C3 C2 H4 149.958 H6 C1 H7 114.429
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability