return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B2PLYP=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at B2PLYP=FULL/6-311G*
 hartrees
Energy at 0K-209.358703
Energy at 298.15K-209.363254
HF Energy-209.107520
Nuclear repulsion energy150.937092
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 B2PLYP=FULL/6-311G*
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 3274 3274 3.08      
2 A1 3235 3235 2.43      
3 A1 1570 1570 1.07      
4 A1 1452 1452 23.42      
5 A1 1216 1216 3.89      
6 A1 1102 1102 41.75      
7 A1 1060 1060 0.18      
8 A1 886 886 11.35      
9 A2 877 877 0.00      
10 A2 824 824 0.00      
11 A2 494 494 0.00      
12 B1 830 830 0.11      
13 B1 708 708 72.50      
14 B1 546 546 23.56      
15 B2 3255 3255 10.30      
16 B2 3230 3230 19.34      
17 B2 1378 1378 39.57      
18 B2 1307 1307 0.07      
19 B2 1084 1084 14.18      
20 B2 959 959 0.63      
21 B2 718 718 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 15002.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15002.1 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 B2PLYP=FULL/6-311G*
ABC
0.33366 0.29368 0.15620

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.248
C2 0.000 1.062 0.424
C3 0.000 -1.062 0.424
C4 0.000 0.682 -0.984
C5 0.000 -0.682 -0.984
H6 0.000 2.069 0.821
H7 0.000 -2.069 0.821
H8 0.000 1.353 -1.830
H9 0.000 -1.353 -1.830

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.34401.34402.33362.33362.11312.11313.36203.3620
C21.34402.12351.45832.24081.08293.15622.27253.3029
C31.34402.12352.24081.45833.15621.08293.30292.2725
C42.33361.45832.24081.36302.27663.29001.07992.2031
C52.33362.24081.45831.36303.29002.27662.20311.0799
H62.11311.08293.15622.27663.29004.13892.74584.3285
H72.11313.15621.08293.29002.27664.13894.32852.7458
H83.36202.27253.30291.07992.20312.74584.32852.7053
H93.36203.30292.27252.20311.07994.32852.74582.7053

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 112.699 N1 C2 H6 120.696
N1 C3 C5 112.699 N1 C3 H7 120.696
C2 N1 C3 104.371 C2 C4 C5 105.115
C2 C4 H8 126.460 C3 C5 C4 105.115
C3 C5 H9 126.460 C4 C2 H6 126.605
C4 C5 H9 128.425 C5 C3 H7 126.605
C5 C4 H8 128.425
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability