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

using model chemistry: ROMP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at ROMP2/6-31G*
 hartrees
Energy at 0K-208.837761
Energy at 298.15K-208.842289
HF Energy-208.181593
Nuclear repulsion energy150.575833
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 ROMP2/6-31G*
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 3312 3312        
2 A1 3273 3273        
3 A1 1595 1595        
4 A1 1490 1490        
5 A1 1218 1218        
6 A1 1121 1121        
7 A1 1079 1079        
8 A1 879 879        
9 A2 844 844        
10 A2 779 779        
11 A2 480 480        
12 B1 782 782        
13 B1 703 703        
14 B1 541 541        
15 B2 3292 3292        
16 B2 3271 3271        
17 B2 1421 1421        
18 B2 1342 1342        
19 B2 1289 1289        
20 B2 974 974        
21 B2 772 772        

Unscaled Zero Point Vibrational Energy (zpe) 15227.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15227.3 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 ROMP2/6-31G*
ABC
0.33201 0.29246 0.15549

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.254
C2 0.000 1.065 0.423
C3 0.000 -1.065 0.423
C4 0.000 0.682 -0.985
C5 0.000 -0.682 -0.985
H6 0.000 2.076 0.817
H7 0.000 -2.076 0.817
H8 0.000 1.354 -1.833
H9 0.000 -1.354 -1.833

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.35101.35102.34012.34012.12182.12183.37093.3709
C21.35102.13061.45912.24351.08543.16652.27443.3083
C31.35102.13062.24351.45913.16651.08543.30832.2744
C42.34011.45912.24351.36312.27913.29471.08272.2056
C52.34012.24351.45911.36313.29472.27912.20561.0827
H62.12181.08543.16652.27913.29474.15292.74714.3355
H72.12183.16651.08543.29472.27914.15294.33552.7471
H83.37092.27443.30831.08272.20562.74714.33552.7089
H93.37093.30832.27442.20561.08274.33552.74712.7089

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 112.702 N1 C2 H6 120.729
N1 C3 C5 112.702 N1 C3 H7 120.729
C2 N1 C3 104.098 C2 C4 C5 105.249
C2 C4 H8 126.323 C3 C5 C4 105.249
C3 C5 H9 126.323 C4 C2 H6 126.569
C4 C5 H9 128.429 C5 C3 H7 126.569
C5 C4 H8 128.429
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability