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

using model chemistry: MP2/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-209.063654
Energy at 298.15K-209.068429
HF Energy-208.273781
Nuclear repulsion energy151.814248
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/Def2TZVPP
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 3300 3140 0.16      
2 A1 3262 3104 0.00      
3 A1 1588 1511 20.43      
4 A1 1447 1377 27.35      
5 A1 1267 1205 12.47      
6 A1 1113 1059 43.06      
7 A1 1077 1025 5.15      
8 A1 892 849 11.91      
9 A2 938 893 0.00      
10 A2 878 835 0.00      
11 A2 516 491 0.00      
12 B1 928 883 0.10      
13 B1 732 696 64.67      
14 B1 568 541 27.85      
15 B2 11322 10773 2633699.00      
16 B2 3277 3119 54.08      
17 B2 3254 3096 69.53      
18 B2 1324 1260 107.89      
19 B2 1305 1242 35.08      
20 B2 1035 984 0.67      
21 B2 889 846 7.10      

Unscaled Zero Point Vibrational Energy (zpe) 20456.8 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 19464.6 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 MP2/Def2TZVPP
ABC
0.33624 0.29839 0.15809

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.255
C2 0.000 1.043 0.413
C3 0.000 -1.043 0.413
C4 0.000 0.689 -0.977
C5 0.000 -0.689 -0.977
H6 0.000 2.044 0.815
H7 0.000 -2.044 0.815
H8 0.000 1.347 -1.829
H9 0.000 -1.347 -1.829

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.34001.34002.33592.33592.09112.09113.36583.3658
C21.34002.08511.43442.22051.07943.11292.26323.2772
C31.34002.08512.22051.43443.11291.07943.27722.2632
C42.33591.43442.22051.37792.24703.26851.07702.2074
C52.33592.22051.43441.37793.26852.24702.20741.0770
H62.09111.07943.11292.24703.26854.08862.73494.3008
H72.09113.11291.07943.26852.24704.08864.30082.7349
H83.36582.26323.27721.07702.20742.73494.30082.6945
H93.36583.27722.26322.20741.07704.30082.73492.6945

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 114.652 N1 C2 H6 119.211
N1 C3 C5 114.652 N1 C3 H7 119.211
C2 N1 C3 102.158 C2 C4 C5 104.269
C2 C4 H8 128.054 C3 C5 C4 104.269
C3 C5 H9 128.054 C4 C2 H6 126.137
C4 C5 H9 127.676 C5 C3 H7 126.137
C5 C4 H8 127.676
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability