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 C4H5N (Pyrrole)

using model chemistry: HSEh1PBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HSEh1PBE/6-311G**
 hartrees
Energy at 0K-209.990543
Energy at 298.15K 
HF Energy-209.990543
Nuclear repulsion energy161.455088
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/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 3713 3566 69.11      
2 A1 3287 3157 0.08      
3 A1 3265 3136 3.49      
4 A1 1519 1459 8.50      
5 A1 1442 1385 3.33      
6 A1 1193 1146 3.29      
7 A1 1103 1059 9.09      
8 A1 1044 1002 29.88      
9 A1 903 867 0.19      
10 A2 887 852 0.00      
11 A2 696 669 0.00      
12 A2 634 609 0.00      
13 B1 841 807 1.50      
14 B1 735 706 157.41      
15 B1 648 623 0.00      
16 B1 495 476 77.63      
17 B2 3281 3151 3.49      
18 B2 3253 3124 2.86      
19 B2 1593 1530 4.05      
20 B2 1485 1426 5.58      
21 B2 1310 1258 1.93      
22 B2 1170 1124 3.69      
23 B2 1074 1031 28.06      
24 B2 880 845 1.39      

Unscaled Zero Point Vibrational Energy (zpe) 18224.9 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 17503.2 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/6-311G**
ABC
0.30763 0.30298 0.15264

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.116
H2 0.000 0.000 2.120
C3 0.000 1.119 0.331
C4 0.000 -1.119 0.331
C5 0.000 0.709 -0.979
C6 0.000 -0.709 -0.979
H7 0.000 2.107 0.764
H8 0.000 -2.107 0.764
H9 0.000 1.358 -1.842
H10 0.000 -1.358 -1.842

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00411.36661.36662.21202.21202.13612.13613.25493.2549
H21.00412.10972.10973.17943.17942.50532.50534.18854.1885
C31.36662.10972.23821.37332.24981.07863.25502.18683.2955
C41.36662.10972.23822.24981.37333.25501.07863.29552.1868
C52.21203.17941.37332.24981.41882.23473.31251.07942.2401
C62.21203.17942.24981.37331.41883.31252.23472.24011.0794
H72.13612.50531.07863.25502.23473.31254.21392.71234.3359
H82.13612.50533.25501.07863.31252.23474.21394.33592.7123
H93.25494.18852.18683.29551.07942.24012.71234.33592.7157
H103.25494.18853.29552.18682.24011.07944.33592.71232.7157

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.670 N1 C3 H7 121.307
N1 C4 C6 107.670 N1 C4 H8 121.307
H2 N1 C3 125.026 H2 N1 C4 125.026
C3 N1 C4 109.948 C3 C5 C6 107.356
C3 C5 H9 125.723 C4 C6 C5 107.356
C4 C6 H10 125.723 C5 C3 H7 131.023
C5 C6 H10 126.921 C6 C4 H8 131.023
C6 C5 H9 126.921
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.348      
2 H 0.229      
3 C 0.051      
4 C 0.051      
5 C -0.200      
6 C -0.200      
7 H 0.112      
8 H 0.112      
9 H 0.097      
10 H 0.097      


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 1.980 1.980
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.695 0.000 0.000
y 0.000 -26.480 0.000
z 0.000 0.000 -23.283
Traceless
 xyz
x -8.813 0.000 0.000
y 0.000 2.008 0.000
z 0.000 0.000 6.805
Polar
3z2-r213.609
x2-y2-7.214
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.635 0.000 0.000
y 0.000 8.167 0.000
z 0.000 0.000 7.975


<r2> (average value of r2) Å2
<r2> 85.003
(<r2>)1/2 9.220