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

using model chemistry: QCISD/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-208.906290
Energy at 298.15K-208.910926
HF Energy-208.213489
Nuclear repulsion energy149.662366
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-pVDZ
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 3285 3151 1.50      
2 A1 3242 3110 2.64      
3 A1 1591 1526 0.15      
4 A1 1479 1419 20.90      
5 A1 1206 1157 1.23      
6 A1 1097 1053 29.37      
7 A1 1044 1002 0.03      
8 A1 877 841 11.00      
9 A2 898 862 0.00      
10 A2 821 788 0.00      
11 A2 493 473 0.00      
12 B1 823 790 0.86      
13 B1 716 687 57.86      
14 B1 550 528 17.78      
15 B2 3266 3133 0.07      
16 B2 3238 3106 7.59      
17 B2 1675 1607 223.39      
18 B2 1297 1244 4.64      
19 B2 1190 1142 135.66      
20 B2 1026 984 0.42      
21 B2 812 779 3.06      

Unscaled Zero Point Vibrational Energy (zpe) 15312.2 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 14690.5 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-pVDZ
ABC
0.32895 0.28800 0.15356

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.260
C2 0.000 1.069 0.429
C3 0.000 -1.069 0.429
C4 0.000 0.685 -0.994
C5 0.000 -0.685 -0.994
H6 0.000 2.089 0.827
H7 0.000 -2.089 0.827
H8 0.000 1.366 -1.847
H9 0.000 -1.366 -1.847

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.35371.35372.35532.35532.13332.13333.39413.3941
C21.35372.13791.47372.25861.09473.18282.29583.3334
C31.35372.13792.25861.47373.18281.09473.33342.2958
C42.35531.47372.25861.37042.29883.31811.09192.2217
C52.35532.25861.47371.37043.31812.29882.22171.0919
H62.13331.09473.18282.29883.31814.17792.77014.3689
H72.13333.18281.09473.31812.29884.17794.36892.7701
H83.39412.29583.33341.09192.22172.77014.36892.7320
H93.39413.33342.29582.22171.09194.36892.77012.7320

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 112.753 N1 C2 H6 120.859
N1 C3 C5 112.753 N1 C3 H7 120.859
C2 N1 C3 104.307 C2 C4 C5 105.094
C2 C4 H8 126.332 C3 C5 C4 105.094
C3 C5 H9 126.332 C4 C2 H6 126.388
C4 C5 H9 128.574 C5 C3 H7 126.388
C5 C4 H8 128.574
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability