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

using model chemistry: CCD/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 CCD/cc-pVTZ
 hartrees
Energy at 0K-209.078781
Energy at 298.15K-209.083588
HF Energy-208.267949
Nuclear repulsion energy151.705568
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 CCD/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 3295 3077 0.76      
2 A1 3253 3037 0.58      
3 A1 1611 1504 6.96      
4 A1 1492 1393 26.36      
5 A1 1256 1172 5.31      
6 A1 1118 1044 38.13      
7 A1 1072 1001 0.02      
8 A1 902 842 12.14      
9 A2 941 879 0.00      
10 A2 894 835 0.00      
11 A2 526 491 0.00      
12 B1 902 843 0.01      
13 B1 739 690 66.86      
14 B1 575 537 22.15      
15 B2 5048 4713 89390.71      
16 B2 3268 3051 74.95      
17 B2 3243 3028 163.63      
18 B2 1341 1252 101.37      
19 B2 1310 1223 61.66      
20 B2 1037 969 0.59      
21 B2 897 838 2.20      

Unscaled Zero Point Vibrational Energy (zpe) 17359.7 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 16208.8 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 CCD/cc-pVTZ
ABC
0.33676 0.29688 0.15778

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.239
C2 0.000 1.055 0.424
C3 0.000 -1.055 0.424
C4 0.000 0.680 -0.979
C5 0.000 -0.680 -0.979
H6 0.000 2.061 0.816
H7 0.000 -2.061 0.816
H8 0.000 1.352 -1.820
H9 0.000 -1.352 -1.820

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.33321.33322.32012.32012.10362.10363.34423.3442
C21.33322.11031.45262.23151.07953.14052.26323.2908
C31.33322.11032.23151.45263.14051.07953.29082.2632
C42.32011.45262.23151.35982.26533.27661.07622.1990
C52.32012.23151.45261.35983.27662.26532.19901.0762
H62.10361.07953.14052.26533.27664.12152.72974.3125
H72.10363.14051.07953.27662.26534.12154.31252.7297
H83.34422.26323.29081.07622.19902.72974.31252.7044
H93.34423.29082.26322.19901.07624.31252.72972.7044

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 112.711 N1 C2 H6 120.998
N1 C3 C5 112.711 N1 C3 H7 120.998
C2 N1 C3 104.636 C2 C4 C5 104.971
C2 C4 H8 126.370 C3 C5 C4 104.971
C3 C5 H9 126.370 C4 C2 H6 126.292
C4 C5 H9 128.659 C5 C3 H7 126.292
C5 C4 H8 128.659
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability