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

using model chemistry: ROMP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at ROMP2/6-311G*
 hartrees
Energy at 0K-208.908331
Energy at 298.15K-208.912847
HF Energy-208.220607
Nuclear repulsion energy150.457090
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 ROMP2/6-311G*
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 3288 3288        
2 A1 3249 3249        
3 A1 1567 1567        
4 A1 1469 1469        
5 A1 1209 1209        
6 A1 1103 1103        
7 A1 1062 1062        
8 A1 875 875        
9 A2 836 836        
10 A2 773 773        
11 A2 476 476        
12 B1 784 784        
13 B1 695 695        
14 B1 534 534        
15 B2 3268 3268        
16 B2 3247 3247        
17 B2 1404 1404        
18 B2 1322 1322        
19 B2 1273 1273        
20 B2 954 954        
21 B2 765 765        

Unscaled Zero Point Vibrational Energy (zpe) 15075.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15075.9 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 ROMP2/6-311G*
ABC
0.33203 0.29136 0.15518

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-311G*

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 0.425
C3 0.000 -1.065 0.425
C4 0.000 0.683 -0.988
C5 0.000 -0.683 -0.988
H6 0.000 2.075 0.823
H7 0.000 -2.075 0.823
H8 0.000 1.354 -1.836
H9 0.000 -1.354 -1.836

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.34911.34912.34302.34302.11892.11893.37393.3739
C21.34912.12971.46372.24731.08523.16452.28013.3117
C31.34912.12972.24731.46373.16451.08523.31172.2801
C42.34301.46372.24731.36542.28353.29851.08242.2068
C52.34302.24731.46371.36543.29852.28352.20681.0824
H62.11891.08523.16452.28353.29854.14922.75494.3392
H72.11893.16451.08523.29852.28354.14924.33922.7549
H83.37392.28013.31171.08242.20682.75494.33922.7086
H93.37393.31172.28012.20681.08244.33922.75492.7086

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 112.747 N1 C2 H6 120.636
N1 C3 C5 112.747 N1 C3 H7 120.636
C2 N1 C3 104.237 C2 C4 C5 105.134
C2 C4 H8 126.513 C3 C5 C4 105.134
C3 C5 H9 126.513 C4 C2 H6 126.616
C4 C5 H9 128.353 C5 C3 H7 126.616
C5 C4 H8 128.353
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability