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

using model chemistry: MP2=FULL/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 MP2=FULL/3-21G*
 hartrees
Energy at 0K-207.445862
Energy at 298.15K-207.450572
HF Energy-207.013620
Nuclear repulsion energy149.249722
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 MP2=FULL/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 3307 3135 0.01      
2 A1 3280 3109 3.53      
3 A1 1527 1448 0.22      
4 A1 1371 1300 9.32      
5 A1 1234 1170 4.72      
6 A1 1110 1053 26.78      
7 A1 1024 971 22.38      
8 A1 919 871 12.14      
9 A2 867 822 0.00      
10 A2 852 808 0.00      
11 A2 528 501 0.00      
12 B1 874 828 0.68      
13 B1 714 677 90.02      
14 B1 587 557 24.81      
15 B2 8036 7618 476750.00      
16 B2 3278 3108 78.22      
17 B2 3269 3099 38.16      
18 B2 1338 1269 20.23      
19 B2 1299 1232 94.09      
20 B2 976 925 10.74      
21 B2 864 819 16.83      

Unscaled Zero Point Vibrational Energy (zpe) 18626.9 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 17658.3 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 MP2=FULL/3-21G*
ABC
0.32385 0.28847 0.15257

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.256
C2 0.000 1.082 0.431
C3 0.000 -1.082 0.431
C4 0.000 0.691 -0.994
C5 0.000 -0.691 -0.994
H6 0.000 2.089 0.821
H7 0.000 -2.089 0.821
H8 0.000 1.359 -1.842
H9 0.000 -1.359 -1.842

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.36051.36052.35432.35432.13422.13423.38353.3835
C21.36052.16351.47842.27471.08043.19502.29043.3356
C31.36052.16352.27471.47843.19501.08043.33562.2904
C42.35431.47842.27471.38132.29193.32041.07962.2180
C52.35432.27471.47841.38133.32042.29192.21801.0796
H62.13421.08043.19502.29193.32044.17882.76184.3572
H72.13423.19501.08043.32042.29194.17884.35722.7618
H83.38352.29043.33561.07962.21802.76184.35722.7179
H93.38353.33562.29042.21801.07964.35722.76182.7179

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 111.991 N1 C2 H6 121.513
N1 C3 C5 111.991 N1 C3 H7 121.513
C2 N1 C3 105.335 C2 C4 C5 105.342
C2 C4 H8 126.410 C3 C5 C4 105.342
C3 C5 H9 126.410 C4 C2 H6 126.496
C4 C5 H9 128.248 C5 C3 H7 126.496
C5 C4 H8 128.248
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability