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: B3LYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at B3LYP/cc-pVTZ
 hartrees
Energy at 0K-209.585736
Energy at 298.15K-209.590291
HF Energy-209.585736
Nuclear repulsion energy151.261007
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 B3LYP/cc-pVTZ
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 3248 3139 2.01      
2 A1 3199 3092 1.60      
3 A1 1562 1510 1.26      
4 A1 1435 1387 22.38      
5 A1 1205 1165 2.41      
6 A1 1093 1056 40.31      
7 A1 1045 1010 1.21      
8 A1 884 854 12.51      
9 A2 921 890 0.00      
10 A2 830 802 0.00      
11 A2 496 479 0.00      
12 B1 847 819 0.56      
13 B1 715 691 62.35      
14 B1 544 526 20.55      
15 B2 3228 3121 5.84      
16 B2 3194 3088 18.35      
17 B2 1362 1317 46.29      
18 B2 1300 1256 0.26      
19 B2 1078 1042 6.68      
20 B2 936 905 0.01      
21 B2 661 639 4.22      

Unscaled Zero Point Vibrational Energy (zpe) 14891.3 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 14393.9 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 B3LYP/cc-pVTZ
ABC
0.33444 0.29548 0.15688

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.243
C2 0.000 1.062 0.424
C3 0.000 -1.062 0.424
C4 0.000 0.678 -0.981
C5 0.000 -0.678 -0.981
H6 0.000 2.069 0.816
H7 0.000 -2.069 0.816
H8 0.000 1.348 -1.825
H9 0.000 -1.348 -1.825

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.34141.34142.32562.32562.11302.11303.35153.3515
C21.34142.12371.45622.23661.08133.15572.26683.2964
C31.34142.12372.23661.45623.15571.08133.29642.2668
C42.32561.45622.23661.35702.27263.28341.07752.1956
C52.32562.23661.45621.35703.28342.27262.19561.0775
H62.11301.08133.15572.27263.28344.13882.73774.3194
H72.11303.15571.08133.28342.27264.13884.31942.7377
H83.35152.26683.29641.07752.19562.73774.31942.6969
H93.35153.29642.26682.19561.07754.31942.73772.6969

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 112.401 N1 C2 H6 121.055
N1 C3 C5 112.401 N1 C3 H7 121.055
C2 N1 C3 104.672 C2 C4 C5 105.264
C2 C4 H8 126.289 C3 C5 C4 105.264
C3 C5 H9 126.289 C4 C2 H6 126.545
C4 C5 H9 128.448 C5 C3 H7 126.545
C5 C4 H8 128.448
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.195      
2 C -0.011      
3 C -0.011      
4 C -0.144      
5 C -0.144      
6 H 0.128      
7 H 0.128      
8 H 0.124      
9 H 0.124      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.006 2.006
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.204 0.000 0.000
y 0.000 -23.437 0.000
z 0.000 0.000 -31.911
Traceless
 xyz
x -3.530 0.000 0.000
y 0.000 8.121 0.000
z 0.000 0.000 -4.591
Polar
3z2-r2-9.181
x2-y2-7.767
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.062 0.000 0.000
y 0.000 8.781 0.000
z 0.000 0.000 7.559


<r2> (average value of r2) Å2
<r2> 81.794
(<r2>)1/2 9.044