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

using model chemistry: ROMP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at ROMP2/6-31G**
 hartrees
Energy at 0K-208.869341
Energy at 298.15K-208.873900
HF Energy-208.189272
Nuclear repulsion energy150.693324
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 ROMP2/6-31G**
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 3344 3344        
2 A1 3303 3303        
3 A1 1600 1600        
4 A1 1495 1495        
5 A1 1219 1219        
6 A1 1122 1122        
7 A1 1079 1079        
8 A1 879 879        
9 A2 862 862        
10 A2 789 789        
11 A2 480 480        
12 B1 792 792        
13 B1 710 710        
14 B1 542 542        
15 B2 3324 3324        
16 B2 3301 3301        
17 B2 1424 1424        
18 B2 1347 1347        
19 B2 1292 1292        
20 B2 972 972        
21 B2 771 771        

Unscaled Zero Point Vibrational Energy (zpe) 15322.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15322.8 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 ROMP2/6-31G**
ABC
0.33265 0.29262 0.15568

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.254
C2 0.000 1.065 0.423
C3 0.000 -1.065 0.423
C4 0.000 0.681 -0.985
C5 0.000 -0.681 -0.985
H6 0.000 2.072 0.814
H7 0.000 -2.072 0.814
H8 0.000 1.351 -1.830
H9 0.000 -1.351 -1.830

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.35051.35052.34022.34022.11832.11833.36643.3664
C21.35052.12921.45902.24281.08073.16102.27053.3029
C31.35052.12922.24281.45903.16101.08073.30292.2705
C42.34021.45902.24281.36272.27383.28901.07792.2010
C52.34022.24281.45901.36273.28902.27382.20101.0779
H62.11831.08073.16102.27383.28904.14412.74004.3251
H72.11833.16101.08073.28902.27384.14414.32512.7400
H83.36642.27053.30291.07792.20102.74004.32512.7023
H93.36643.30292.27052.20101.07794.32512.74002.7023

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 112.746 N1 C2 H6 120.810
N1 C3 C5 112.746 N1 C3 H7 120.810
C2 N1 C3 104.050 C2 C4 C5 105.229
C2 C4 H8 126.356 C3 C5 C4 105.229
C3 C5 H9 126.356 C4 C2 H6 126.444
C4 C5 H9 128.415 C5 C3 H7 126.444
C5 C4 H8 128.415
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability