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

using model chemistry: CISD/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 CISD/6-31G
 hartrees
Energy at 0K-208.498190
Energy at 298.15K-208.502922
HF Energy-208.100566
Nuclear repulsion energy149.624503
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 CISD/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 3347 3138 0.56      
2 A1 3320 3114 5.30      
3 A1 1634 1532 0.15      
4 A1 1467 1376 12.20      
5 A1 1238 1161 0.42      
6 A1 1135 1064 32.31      
7 A1 1074 1007 7.01      
8 A1 924 867 10.86      
9 A2 902 846 0.00      
10 A2 812 761 0.00      
11 A2 521 489 0.00      
12 B1 822 771 1.71      
13 B1 734 688 88.68      
14 B1 572 536 22.85      
15 B2 9220 8646 909569.60      
16 B2 3316 3110 105.30      
17 B2 3309 3103 0.00      
18 B2 1374 1288 91.22      
19 B2 1321 1238 85.38      
20 B2 1039 975 2.78      
21 B2 909 853 21.79      

Unscaled Zero Point Vibrational Energy (zpe) 19494.0 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 18281.5 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 CISD/6-31G
ABC
0.32483 0.29063 0.15339

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.250
C2 0.000 1.084 0.430
C3 0.000 -1.084 0.430
C4 0.000 0.683 -0.991
C5 0.000 -0.683 -0.991
H6 0.000 2.089 0.827
H7 0.000 -2.089 0.827
H8 0.000 1.353 -1.837
H9 0.000 -1.353 -1.837

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.36001.36002.34282.34282.13152.13153.37123.3712
C21.36002.16891.47612.26731.08003.19812.28303.3287
C31.36002.16892.26731.47613.19811.08003.32872.2830
C42.34281.47612.26731.36562.29783.31431.07982.2047
C52.34282.26731.47611.36563.31432.29782.20471.0798
H62.13151.08003.19812.29783.31434.17792.76384.3523
H72.13153.19811.08003.31432.29784.17794.35232.7638
H83.37122.28303.32871.07982.20472.76384.35232.7056
H93.37123.32872.28302.20471.07984.35232.76382.7056

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 111.329 N1 C2 H6 121.326
N1 C3 C5 111.329 N1 C3 H7 121.326
C2 N1 C3 105.763 C2 C4 C5 105.789
C2 C4 H8 125.854 C3 C5 C4 105.789
C3 C5 H9 125.854 C4 C2 H6 127.345
C4 C5 H9 128.356 C5 C3 H7 127.345
C5 C4 H8 128.356
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability