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: B97D3/aug-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 B97D3/aug-cc-pVTZ
 hartrees
Energy at 0K-209.445871
Energy at 298.15K-209.450318
HF Energy-209.445871
Nuclear repulsion energy150.489001
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 B97D3/aug-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 3196 3147 4.28      
2 A1 3146 3098 1.89      
3 A1 1516 1493 2.25      
4 A1 1389 1368 22.05      
5 A1 1186 1168 1.54      
6 A1 1062 1046 40.75      
7 A1 1024 1009 0.98      
8 A1 868 854 10.52      
9 A2 885 872 0.00      
10 A2 786 774 0.00      
11 A2 467 460 0.00      
12 B1 815 802 0.48      
13 B1 688 678 63.72      
14 B1 526 518 19.53      
15 B2 3177 3128 8.75      
16 B2 3141 3093 21.57      
17 B2 1324 1304 42.22      
18 B2 1260 1241 0.03      
19 B2 1058 1042 6.89      
20 B2 913 899 0.01      
21 B2 663 653 2.68      

Unscaled Zero Point Vibrational Energy (zpe) 14545.4 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 14322.8 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 B97D3/aug-cc-pVTZ
ABC
0.33050 0.29296 0.15530

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.249
C2 0.000 1.069 0.425
C3 0.000 -1.069 0.425
C4 0.000 0.683 -0.985
C5 0.000 -0.683 -0.985
H6 0.000 2.079 0.821
H7 0.000 -2.079 0.821
H8 0.000 1.353 -1.834
H9 0.000 -1.353 -1.834

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.34991.34992.33622.33622.12292.12293.36753.3675
C21.34992.13741.46132.24831.08553.17282.27693.3116
C31.34992.13742.24831.46133.17281.08553.31162.2769
C42.33621.46132.24831.36582.28273.30001.08192.2059
C52.33622.24831.46131.36583.30002.28272.20591.0819
H62.12291.08553.17282.28273.30004.15852.75304.3394
H72.12293.17281.08553.30002.28274.15854.33942.7530
H83.36752.27693.31161.08192.20592.75304.33942.7056
H93.36753.31162.27692.20591.08194.33942.75302.7056

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 112.349 N1 C2 H6 120.927
N1 C3 C5 112.349 N1 C3 H7 120.927
C2 N1 C3 104.685 C2 C4 C5 105.308
C2 C4 H8 126.437 C3 C5 C4 105.308
C3 C5 H9 126.437 C4 C2 H6 126.723
C4 C5 H9 128.255 C5 C3 H7 126.723
C5 C4 H8 128.255
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.238      
2 C -0.433      
3 C -0.433      
4 C -0.200      
5 C -0.200      
6 H 0.477      
7 H 0.477      
8 H 0.275      
9 H 0.275      


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 -2.052 2.052
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.314 0.000 0.000
y 0.000 -23.533 0.000
z 0.000 0.000 -32.222
Traceless
 xyz
x -3.436 0.000 0.000
y 0.000 8.234 0.000
z 0.000 0.000 -4.798
Polar
3z2-r2-9.596
x2-y2-7.781
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.265 0.000 0.000
y 0.000 9.441 0.000
z 0.000 0.000 8.700


<r2> (average value of r2) Å2
<r2> 82.542
(<r2>)1/2 9.085