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

using model chemistry: ROMP2/TZVP

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/TZVP
 hartrees
Energy at 0K-208.951659
Energy at 298.15K 
HF Energy-208.244564
Nuclear repulsion energy150.919865
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/TZVP
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 3307 3307        
2 A1 3268 3268        
3 A1 1570 1570        
4 A1 1464 1464        
5 A1 1212 1212        
6 A1 1106 1106        
7 A1 1062 1062        
8 A1 882 882        
9 A2 754 754        
10 A2 526 526        
11 A2 327i 327i        
12 B1 689 689        
13 B1 635 635        
14 B1 514 514        
15 B2 3287 3287        
16 B2 3266 3266        
17 B2 1401 1401        
18 B2 1325 1325        
19 B2 1271 1271        
20 B2 955 955        
21 B2 762 762        

Unscaled Zero Point Vibrational Energy (zpe) 14464.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14464.0 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/TZVP
ABC
0.33337 0.29375 0.15616

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.249
C2 0.000 1.064 0.423
C3 0.000 -1.064 0.423
C4 0.000 0.680 -0.984
C5 0.000 -0.680 -0.984
H6 0.000 2.070 0.817
H7 0.000 -2.070 0.817
H8 0.000 1.350 -1.828
H9 0.000 -1.350 -1.828

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.34661.34662.33382.33382.11482.11483.36053.3605
C21.34662.12751.45842.24051.08093.15872.26983.3012
C31.34662.12752.24051.45843.15871.08093.30122.2698
C42.33381.45842.24051.35992.27513.28741.07842.1990
C52.33382.24051.45841.35993.28742.27512.19901.0784
H62.11481.08093.15872.27513.28744.14052.74174.3243
H72.11483.15871.08093.28742.27514.14054.32432.7417
H83.36052.26983.30121.07842.19902.74174.32432.7008
H93.36053.30122.26982.19901.07844.32432.74172.7008

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 112.558 N1 C2 H6 120.809
N1 C3 C5 112.558 N1 C3 H7 120.809
C2 N1 C3 104.366 C2 C4 C5 105.259
C2 C4 H8 126.299 C3 C5 C4 105.259
C3 C5 H9 126.299 C4 C2 H6 126.633
C4 C5 H9 128.442 C5 C3 H7 126.633
C5 C4 H8 128.442
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability