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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G
 hartrees
Energy at 0K-208.529186
Energy at 298.15K-208.533833
HF Energy-208.098410
Nuclear repulsion energy149.198879
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 MP2=FULL/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3300 3135 0.16      
2 A1 3278 3114 3.90      
3 A1 1545 1468 1.96      
4 A1 1407 1337 17.89      
5 A1 1238 1176 10.25      
6 A1 1111 1055 34.36      
7 A1 1073 1020 13.23      
8 A1 913 868 13.00      
9 A2 837 795 0.00      
10 A2 777 738 0.00      
11 A2 500 475 0.00      
12 B1 841 799 1.36      
13 B1 685 650 82.90      
14 B1 575 546 26.19      
15 B2 5501 5226 119107.70      
16 B2 3273 3110 191.95      
17 B2 3264 3101 6.97      
18 B2 1336 1269 28.99      
19 B2 1299 1234 97.22      
20 B2 1001 951 11.24      
21 B2 888 844 8.90      

Unscaled Zero Point Vibrational Energy (zpe) 17319.6 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 16455.4 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 MP2=FULL/6-31G
ABC
0.32242 0.28969 0.15259

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.255
C2 0.000 1.083 0.428
C3 0.000 -1.083 0.428
C4 0.000 0.695 -0.991
C5 0.000 -0.695 -0.991
H6 0.000 2.090 0.829
H7 0.000 -2.090 0.829
H8 0.000 1.366 -1.843
H9 0.000 -1.366 -1.843

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.36241.36242.35092.35092.13312.13313.38533.3853
C21.36242.16561.47122.27451.08443.19832.28843.3394
C31.36242.16562.27451.47123.19831.08443.33942.2884
C42.35091.47122.27451.38932.29393.32711.08432.2293
C52.35092.27451.47121.38933.32712.29392.22931.0843
H62.13311.08443.19832.29393.32714.18052.76874.3685
H72.13313.19831.08443.32712.29394.18054.36852.7687
H83.38532.28843.33941.08432.22932.76874.36852.7312
H93.38533.33942.28842.22931.08434.36852.76872.7312

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 112.067 N1 C2 H6 120.910
N1 C3 C5 112.067 N1 C3 H7 120.910
C2 N1 C3 105.269 C2 C4 C5 105.298
C2 C4 H8 126.472 C3 C5 C4 105.298
C3 C5 H9 126.472 C4 C2 H6 127.022
C4 C5 H9 128.230 C5 C3 H7 127.022
C5 C4 H8 128.230
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability