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

using model chemistry: CCD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at CCD/3-21G*
 hartrees
Energy at 0K-207.469840
Energy at 298.15K-207.474514
HF Energy-207.013927
Nuclear repulsion energy148.934919
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 CCD/3-21G*
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 3266 3124 0.46      
2 A1 3237 3096 3.52      
3 A1 1563 1495 0.04      
4 A1 1390 1330 6.75      
5 A1 1219 1166 0.38      
6 A1 1106 1058 25.17      
7 A1 1005 961 19.18      
8 A1 910 870 9.43      
9 A2 873 835 0.00      
10 A2 833 797 0.00      
11 A2 521 499 0.00      
12 B1 837 800 0.02      
13 B1 713 682 89.71      
14 B1 577 552 20.21      
15 B2 10323 9873 0.00      
16 B2 3235 3094 0.62      
17 B2 3228 3088 96.21      
18 B2 1327 1270 227.57      
19 B2 1286 1230 345.51      
20 B2 975 932 28.36      
21 B2 857 820 0.77      

Unscaled Zero Point Vibrational Energy (zpe) 19639.8 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 18785.5 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 CCD/3-21G*
ABC
0.32312 0.28652 0.15186

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.257
C2 0.000 1.086 0.436
C3 0.000 -1.086 0.436
C4 0.000 0.686 -0.999
C5 0.000 -0.686 -0.999
H6 0.000 2.096 0.826
H7 0.000 -2.096 0.826
H8 0.000 1.359 -1.847
H9 0.000 -1.359 -1.847

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.36171.36172.35832.35832.14032.14033.38853.3885
C21.36172.17201.48962.27981.08343.20642.29873.3448
C31.36172.17202.27981.48963.20641.08343.34482.2987
C42.35831.48962.27981.37142.30713.32761.08262.2135
C52.35832.27981.48961.37143.32762.30712.21351.0826
H62.14031.08343.20642.30713.32764.19292.77304.3688
H72.14033.20641.08343.32762.30714.19294.36882.7730
H83.38852.29873.34481.08262.21352.77304.36882.7182
H93.38853.34482.29872.21351.08264.36882.77302.7182

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 111.519 N1 C2 H6 121.751
N1 C3 C5 111.519 N1 C3 H7 121.751
C2 N1 C3 105.784 C2 C4 C5 105.589
C2 C4 H8 125.945 C3 C5 C4 105.589
C3 C5 H9 125.945 C4 C2 H6 126.730
C4 C5 H9 128.466 C5 C3 H7 126.730
C5 C4 H8 128.466
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability