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All results from a given calculation for C3H3 (cyclopropenyl radical)

using model chemistry: MP4=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes CS 2A'

Conformer 1 (D3H)

Jump to S1C2
Vibrational Frequencies calculated at MP4=FULL/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP4=FULL/cc-pVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/cc-pVTZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP4=FULL/cc-pVTZ
 hartrees
Energy at 0K-115.775612
Energy at 298.15K-115.777366
HF Energy-115.234279
Nuclear repulsion energy58.015829
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/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 A' 3333 3209        
2 A' 3119 3003        
3 A' 1784 1718        
4 A' 1264 1217        
5 A' 1001 964        
6 A' 934 899        
7 A' 608 585        
8 A" 3496 3367        
9 A" 2381 2293        
10 A" 1080 1040        
11 A" 991 954        
12 A" 855 823        

Unscaled Zero Point Vibrational Energy (zpe) 10422.9 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 10036.2 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/cc-pVTZ
ABC
1.06110 0.89320 0.49904

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.037 0.887 0.000
H2 0.732 1.649 0.000
C3 -0.037 -0.418 0.659
C4 -0.037 -0.418 -0.659
H5 -0.036 -0.977 1.572
H6 -0.036 -0.977 -1.572

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.08281.46171.46172.43842.4384
H21.08282.30172.30173.15573.1557
C31.46172.30171.31741.07112.3000
C41.46172.30171.31742.30001.0711
H52.43843.15571.07112.30003.1448
H62.43843.15572.30001.07113.1448

picture of cyclopropenyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C4 63.215 C1 C3 H5 148.237
C1 C4 C3 63.215 C1 C4 H6 148.237
H2 C1 C3 128.927 H2 C1 C4 128.927
C3 C1 C4 53.571 C3 C4 H6 148.548
C4 C3 H5 148.548
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability