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

using model chemistry: QCISD/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 QCISD/6-31G
 hartrees
Energy at 0K-208.570831
Energy at 298.15K-208.575330
HF Energy-208.097459
Nuclear repulsion energy148.137195
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/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 3248 3129 0.96      
2 A1 3225 3107 7.32      
3 A1 1557 1501 0.67      
4 A1 1408 1357 6.16      
5 A1 1181 1138 0.00      
6 A1 1082 1042 22.05      
7 A1 1032 994 8.44      
8 A1 886 854 9.29      
9 A2 827 797 0.00      
10 A2 725 698 0.00      
11 A2 473 456 0.00      
12 B1 748 720 2.37      
13 B1 684 659 80.03      
14 B1 536 517 19.47      
15 B2 3227 3109 12.78      
16 B2 3213 3096 0.17      
17 B2 1569 1512 123.21      
18 B2 1318 1270 27.94      
19 B2 1238 1193 108.97      
20 B2 977 941 4.77      
21 B2 869 837 3.28      

Unscaled Zero Point Vibrational Energy (zpe) 15009.0 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 14462.6 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/6-31G
ABC
0.31872 0.28459 0.15035

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.267
C2 0.000 1.096 0.432
C3 0.000 -1.096 0.432
C4 0.000 0.688 -1.001
C5 0.000 -0.688 -1.001
H6 0.000 2.108 0.832
H7 0.000 -2.108 0.832
H8 0.000 1.363 -1.854
H9 0.000 -1.363 -1.854

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.37781.37782.36952.36952.15222.15223.40543.4054
C21.37782.19211.48932.28791.08813.22872.30143.3571
C31.37782.19212.28791.48933.22871.08813.35712.3014
C42.36951.48932.28791.37612.31823.34291.08792.2212
C52.36952.28791.48931.37613.34292.31822.22121.0879
H62.15221.08813.22872.31823.34294.21562.78754.3885
H72.15223.22871.08813.34292.31824.21564.38852.7875
H83.40542.30143.35711.08792.22122.78754.38852.7253
H93.40543.35712.30142.22121.08794.38852.78752.7253

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 111.404 N1 C2 H6 121.118
N1 C3 C5 111.404 N1 C3 H7 121.118
C2 N1 C3 105.398 C2 C4 C5 105.897
C2 C4 H8 125.781 C3 C5 C4 105.897
C3 C5 H9 125.781 C4 C2 H6 127.479
C4 C5 H9 128.322 C5 C3 H7 127.479
C5 C4 H8 128.322
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability