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

using model chemistry: QCISD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at QCISD/cc-pVTZ
 hartrees
Energy at 0K-209.091500
Energy at 298.15K-209.096121
HF Energy-208.267752
Nuclear repulsion energy151.089782
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 QCISD/cc-pVTZ
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 3286 3139 1.20      
2 A1 3243 3099 1.34      
3 A1 1589 1518 0.46      
4 A1 1476 1410 20.49      
5 A1 1215 1161 1.92      
6 A1 1106 1057 32.07      
7 A1 1055 1008 0.45      
8 A1 887 848 11.33      
9 A2 928 887 0.00      
10 A2 840 802 0.00      
11 A2 505 483 0.00      
12 B1 847 809 0.67      
13 B1 728 696 67.56      
14 B1 554 529 18.72      
15 B2 3265 3119 2.39      
16 B2 3238 3094 11.13      
17 B2 1412 1349 20.05      
18 B2 1313 1254 0.07      
19 B2 1063 1016 7.42      
20 B2 991 947 4.08      
21 B2 710 679 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 15124.9 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 14451.9 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 QCISD/cc-pVTZ
ABC
0.33438 0.29406 0.15646

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.247
C2 0.000 1.062 0.425
C3 0.000 -1.062 0.425
C4 0.000 0.678 -0.984
C5 0.000 -0.678 -0.984
H6 0.000 2.068 0.817
H7 0.000 -2.068 0.817
H8 0.000 1.350 -1.826
H9 0.000 -1.350 -1.826

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.34291.34292.33132.33132.11222.11223.35583.3558
C21.34292.12431.46002.23921.07973.15472.26913.2988
C31.34292.12432.23921.46003.15471.07973.29882.2691
C42.33131.46002.23921.35692.27463.28431.07682.1959
C52.33132.23921.46001.35693.28432.27462.19591.0768
H62.11221.07973.15472.27463.28434.13612.73894.3203
H72.11223.15471.07973.28432.27464.13614.32032.7389
H83.35582.26913.29881.07682.19592.73894.32032.6990
H93.35583.29882.26912.19591.07684.32032.73892.6990

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 112.491 N1 C2 H6 120.976
N1 C3 C5 112.491 N1 C3 H7 120.976
C2 N1 C3 104.547 C2 C4 C5 105.236
C2 C4 H8 126.217 C3 C5 C4 105.236
C3 C5 H9 126.217 C4 C2 H6 126.533
C4 C5 H9 128.547 C5 C3 H7 126.533
C5 C4 H8 128.547
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability