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: HSEh1PBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at HSEh1PBE/cc-pVDZ
 hartrees
Energy at 0K-209.296940
Energy at 298.15K-209.301505
HF Energy-209.296940
Nuclear repulsion energy150.875892
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 HSEh1PBE/cc-pVDZ
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 3283 3158 1.01      
2 A1 3228 3105 1.67      
3 A1 1589 1528 0.47      
4 A1 1471 1415 26.42      
5 A1 1215 1169 1.61      
6 A1 1097 1056 37.18      
7 A1 1047 1007 1.97      
8 A1 877 843 12.04      
9 A2 919 884 0.00      
10 A2 831 800 0.00      
11 A2 495 476 0.00      
12 B1 844 812 0.84      
13 B1 717 689 52.91      
14 B1 543 522 20.19      
15 B2 3261 3137 4.00      
16 B2 3224 3101 17.22      
17 B2 1357 1306 52.70      
18 B2 1280 1232 0.00      
19 B2 1098 1056 4.48      
20 B2 943 907 0.05      
21 B2 693 667 5.94      

Unscaled Zero Point Vibrational Energy (zpe) 15005.8 cm-1
Scaled (by 0.9619) Zero Point Vibrational Energy (zpe) 14434.1 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 HSEh1PBE/cc-pVDZ
ABC
0.33395 0.29334 0.15616

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.249
C2 0.000 1.059 0.424
C3 0.000 -1.059 0.424
C4 0.000 0.681 -0.984
C5 0.000 -0.681 -0.984
H6 0.000 2.077 0.821
H7 0.000 -2.077 0.821
H8 0.000 1.358 -1.835
H9 0.000 -1.358 -1.835

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9
N11.34261.34262.33412.33412.12082.12083.37013.3701
C21.34262.11881.45782.23851.09243.16152.27913.3091
C31.34262.11882.23851.45783.16151.09243.30912.2791
C42.33411.45782.23851.36202.28163.29601.08812.2099
C52.33412.23851.45781.36203.29602.28162.20991.0881
H62.12081.09243.16152.28163.29604.15442.75184.3426
H72.12083.16151.09243.29602.28164.15444.34262.7518
H83.37012.27913.30911.08812.20992.75184.34262.7166
H93.37013.30912.27912.20991.08814.34262.75182.7166

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 112.858 N1 C2 H6 120.801
N1 C3 C5 112.858 N1 C3 H7 120.801
C2 N1 C3 104.194 C2 C4 C5 105.045
C2 C4 H8 126.461 C3 C5 C4 105.045
C3 C5 H9 126.461 C4 C2 H6 126.341
C4 C5 H9 128.494 C5 C3 H7 126.341
C5 C4 H8 128.494
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.234      
2 C 0.117      
3 C 0.117      
4 C -0.042      
5 C -0.042      
6 H 0.030      
7 H 0.030      
8 H 0.012      
9 H 0.012      


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 -1.895 1.895
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.871 0.000 0.000
y 0.000 -23.189 0.000
z 0.000 0.000 -31.184
Traceless
 xyz
x -3.685 0.000 0.000
y 0.000 7.839 0.000
z 0.000 0.000 -4.154
Polar
3z2-r2-8.307
x2-y2-7.683
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.019 0.000 0.000
y 0.000 8.463 0.000
z 0.000 0.000 6.985


<r2> (average value of r2) Å2
<r2> 81.872
(<r2>)1/2 9.048