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

using model chemistry: ROMP2/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at ROMP2/STO-3G
 hartrees
Energy at 0K-205.881863
Energy at 298.15K 
HF Energy-205.577060
Nuclear repulsion energy146.720876
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 ROMP2/STO-3G
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 3666 3666        
2 A1 3572 3572        
3 A1 2573 2573        
4 A1 1659 1659        
5 A1 1513 1513        
6 A1 1155 1155        
7 A1 1122 1122        
8 A1 974 974        
9 A2 981 981        
10 A2 785 785        
11 A2 530 530        
12 B1 808 808        
13 B1 701 701        
14 B1 546 546        
15 B2 4177 4177        
16 B2 3544 3544        
17 B2 3349 3349        
18 B2 2089 2089        
19 B2 1407 1407        
20 B2 1055 1055        
21 B2 1136i 1136i        

Unscaled Zero Point Vibrational Energy (zpe) 17534.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17534.3 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 ROMP2/STO-3G
ABC
0.31898 0.27416 0.14744

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.308
C2 0.000 1.093 0.430
C3 0.000 -1.093 0.430
C4 0.000 0.684 -1.016
C5 0.000 -0.684 -1.016
H6 0.000 2.128 0.811
H7 0.000 -2.128 0.811
H8 0.000 1.371 -1.871
H9 0.000 -1.371 -1.871

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.40271.40272.42282.42282.18572.18573.46283.4628
C21.40272.18691.50242.29121.10313.24442.31773.3719
C31.40272.18692.29121.50243.24441.10313.37192.3177
C42.42281.50242.29121.36822.32913.35391.09732.2263
C52.42282.29121.50241.36823.35392.32912.22631.0973
H62.18571.10313.24442.32913.35394.25682.78744.4096
H72.18573.24441.10313.35392.32914.25684.40962.7874
H83.46282.31773.37191.09732.22632.78744.40962.7427
H93.46283.37192.31772.22631.09734.40962.78742.7427

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 112.974 N1 C2 H6 120.977
N1 C3 C5 112.974 N1 C3 H7 120.977
C2 N1 C3 102.431 C2 C4 C5 105.811
C2 C4 H8 125.410 C3 C5 C4 105.811
C3 C5 H9 125.410 C4 C2 H6 126.050
C4 C5 H9 128.779 C5 C3 H7 126.050
C5 C4 H8 128.779
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability