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: TPSSh/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at TPSSh/cc-pVDZ
 hartrees
Energy at 0K-210.203341
Energy at 298.15K 
HF Energy-210.203341
Nuclear repulsion energy160.400064
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 TPSSh/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 3643 3543 55.07      
2 A1 3273 3182 0.31      
3 A1 3250 3160 6.51      
4 A1 1506 1464 8.88      
5 A1 1432 1392 2.30      
6 A1 1177 1145 2.94      
7 A1 1093 1063 6.84      
8 A1 1033 1005 27.56      
9 A1 882 857 0.05      
10 A2 873 849 0.00      
11 A2 677 658 0.00      
12 A2 623 606 0.00      
13 B1 823 800 2.78      
14 B1 731 711 124.97      
15 B1 638 620 1.61      
16 B1 469 456 58.97      
17 B2 3266 3176 7.06      
18 B2 3238 3149 2.93      
19 B2 1576 1533 1.98      
20 B2 1469 1428 4.50      
21 B2 1295 1260 1.81      
22 B2 1155 1123 2.09      
23 B2 1062 1033 25.20      
24 B2 862 838 1.03      

Unscaled Zero Point Vibrational Energy (zpe) 18022.9 cm-1
Scaled (by 0.9724) Zero Point Vibrational Energy (zpe) 17525.5 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 TPSSh/cc-pVDZ
ABC
0.30382 0.29891 0.15067

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.123
H2 0.000 0.000 2.134
C3 0.000 1.127 0.334
C4 0.000 -1.127 0.334
C5 0.000 0.713 -0.986
C6 0.000 -0.713 -0.986
H7 0.000 2.119 0.775
H8 0.000 -2.119 0.775
H9 0.000 1.366 -1.855
H10 0.000 -1.366 -1.855

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.01161.37541.37542.22602.22602.14782.14783.27643.2764
H21.01162.12392.12393.20073.20072.51792.51794.21704.2170
C31.37542.12392.25351.38322.26421.08633.27602.20223.3178
C41.37542.12392.25352.26421.38323.27601.08633.31782.2022
C52.22603.20071.38322.26421.42592.25363.33521.08742.2537
C62.22603.20072.26421.38321.42593.33522.25362.25371.0874
H72.14782.51791.08633.27602.25363.33524.23892.73584.3667
H82.14782.51793.27601.08633.33522.25364.23894.36672.7358
H93.27644.21702.20223.31781.08742.25372.73584.36672.7327
H103.27644.21703.31782.20222.25371.08744.36672.73582.7327

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.590 N1 C3 H7 121.053
N1 C4 C6 107.590 N1 C4 H8 121.053
H2 N1 C3 124.996 H2 N1 C4 124.996
C3 N1 C4 110.009 C3 C5 C6 107.406
C3 C5 H9 125.664 C4 C6 C5 107.406
C4 C6 H10 125.664 C5 C3 H7 131.358
C5 C6 H10 126.931 C6 C4 H8 131.358
C6 C5 H9 126.931
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.085      
2 H 0.095      
3 C 0.049      
4 C 0.049      
5 C -0.047      
6 C -0.047      
7 H 0.010      
8 H 0.010      
9 H -0.017      
10 H -0.017      


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 1.992 1.992
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.121 0.000 0.000
y 0.000 8.305 0.000
z 0.000 0.000 8.065


<r2> (average value of r2) Å2
<r2> 85.856
(<r2>)1/2 9.266