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

using model chemistry: MP3=FULL/6-31+G**

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 MP3=FULL/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP3=FULL/6-31+G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31+G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP3=FULL/6-31+G**
 hartrees
Energy at 0K-115.616864
Energy at 298.15K-115.618615
HF Energy-115.202759
Nuclear repulsion energy57.995808
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 MP3=FULL/6-31+G**
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' 3407 3174 0.61      
2 A' 3195 2977 43.65      
3 A' 1706 1589 0.84      
4 A' 1278 1190 10.24      
5 A' 1040 969 11.89      
6 A' 963 897 6.08      
7 A' 590 550 89.06      
8 A" 3797 3537 13499.63      
9 A" 2797 2606 7940.51      
10 A" 1046 974 14.09      
11 A" 1025 955 0.58      
12 A" 862 803 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 10852.9 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 10110.6 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 MP3=FULL/6-31+G**
ABC
1.06231 0.89130 0.49852

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.035 0.887 0.000
H2 0.731 1.655 0.000
C3 -0.035 -0.419 0.658
C4 -0.035 -0.419 -0.658
H5 -0.047 -0.977 1.573
H6 -0.047 -0.977 -1.573

Atom - Atom Distances (Å)
  C1 H2 C3 C4 H5 H6
C11.08461.46241.46242.43962.4396
H21.08462.30662.30663.16353.1635
C31.46242.30661.31631.07222.3003
C41.46242.30661.31632.30031.0722
H52.43963.16351.07222.30033.1466
H62.43963.16352.30031.07223.1466

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 63.253 C1 C3 H5 148.139
C1 C4 C3 63.253 C1 C4 H6 148.139
H2 C1 C3 129.211 H2 C1 C4 129.211
C3 C1 C4 53.495 C3 C4 H6 148.598
C4 C3 H5 148.598
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability