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

using model chemistry: ROMP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-208.872950
Energy at 298.15K-208.877530
HF Energy-208.198425
Nuclear repulsion energy149.705673
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/cc-pVDZ
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 3301 3301        
2 A1 3257 3257        
3 A1 1570 1570        
4 A1 1474 1474        
5 A1 1201 1201        
6 A1 1097 1097        
7 A1 1048 1048        
8 A1 866 866        
9 A2 884 884        
10 A2 814 814        
11 A2 490 490        
12 B1 812 812        
13 B1 710 710        
14 B1 542 542        
15 B2 3279 3279        
16 B2 3256 3256        
17 B2 1402 1402        
18 B2 1319 1319        
19 B2 1265 1265        
20 B2 946 946        
21 B2 764 764        

Unscaled Zero Point Vibrational Energy (zpe) 15147.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15147.5 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/cc-pVDZ
ABC
0.32897 0.28841 0.15368

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.261
C2 0.000 1.068 0.427
C3 0.000 -1.068 0.427
C4 0.000 0.687 -0.992
C5 0.000 -0.687 -0.992
H6 0.000 2.088 0.824
H7 0.000 -2.088 0.824
H8 0.000 1.364 -1.847
H9 0.000 -1.364 -1.847

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.35541.35542.35562.35562.13282.13283.39453.3945
C21.35542.13651.46942.25691.09393.18072.29323.3300
C31.35542.13652.25691.46943.18071.09393.33002.2932
C42.35561.46942.25691.37352.29353.31581.09102.2222
C52.35562.25691.46941.37353.31582.29352.22221.0910
H62.13281.09393.18072.29353.31584.17512.76714.3647
H72.13283.18071.09393.31582.29354.17514.36472.7671
H83.39452.29323.33001.09102.22222.76714.36472.7289
H93.39453.33002.29322.22221.09104.36472.76712.7289

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 112.937 N1 C2 H6 120.733
N1 C3 C5 112.937 N1 C3 H7 120.733
C2 N1 C3 104.027 C2 C4 C5 105.049
C2 C4 H8 126.547 C3 C5 C4 105.049
C3 C5 H9 126.547 C4 C2 H6 126.330
C4 C5 H9 128.403 C5 C3 H7 126.330
C5 C4 H8 128.403
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability