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All results from a given calculation for C4H4N (pyrrolide radical)

using model chemistry: MP2/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-208.522725
Energy at 298.15K-208.527369
HF Energy-208.098368
Nuclear repulsion energy149.178417
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 MP2/6-31G
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 3299 3157 0.17      
2 A1 3278 3136 3.94      
3 A1 1545 1478 1.96      
4 A1 1407 1346 17.93      
5 A1 1237 1184 10.20      
6 A1 1111 1063 34.37      
7 A1 1073 1027 13.18      
8 A1 913 874 13.00      
9 A2 836 800 0.00      
10 A2 775 741 0.00      
11 A2 500 478 0.00      
12 B1 839 803 1.38      
13 B1 683 654 82.91      
14 B1 574 550 26.19      
15 B2 5464 5228 115889.40      
16 B2 3273 3131 193.96      
17 B2 3263 3122 7.12      
18 B2 1336 1278 29.12      
19 B2 1298 1242 96.84      
20 B2 1001 957 11.19      
21 B2 888 850 8.87      

Unscaled Zero Point Vibrational Energy (zpe) 17295.8 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 16548.7 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 MP2/6-31G
ABC
0.32234 0.28961 0.15255

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.255
C2 0.000 1.083 0.428
C3 0.000 -1.083 0.428
C4 0.000 0.695 -0.991
C5 0.000 -0.695 -0.991
H6 0.000 2.090 0.829
H7 0.000 -2.090 0.829
H8 0.000 1.366 -1.843
H9 0.000 -1.366 -1.843

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.36261.36262.35132.35132.13342.13343.38583.3858
C21.36262.16591.47152.27481.08453.19872.28873.3398
C31.36262.16592.27481.47153.19871.08453.33982.2887
C42.35131.47152.27481.38952.29413.32751.08442.2297
C52.35132.27481.47151.38953.32752.29412.22971.0844
H62.13341.08453.19872.29413.32754.18092.76904.3690
H72.13343.19871.08453.32752.29414.18094.36902.7690
H83.38582.28873.33981.08442.22972.76904.36902.7316
H93.38583.33982.28872.22971.08444.36902.76902.7316

picture of pyrrolide radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C4 112.070 N1 C2 H6 120.912
N1 C3 C5 112.070 N1 C3 H7 120.912
C2 N1 C3 105.267 C2 C4 C5 105.297
C2 C4 H8 126.470 C3 C5 C4 105.297
C3 C5 H9 126.470 C4 C2 H6 127.018
C4 C5 H9 128.233 C5 C3 H7 127.018
C5 C4 H8 128.233
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability