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: LSDA/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 LSDA/cc-pVDZ
 hartrees
Energy at 0K-209.003102
Energy at 298.15K-209.009099
HF Energy-209.003102
Nuclear repulsion energy160.901860
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 LSDA/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 3580 3541 71.13      
2 A1 3215 3179 0.00      
3 A1 3194 3159 0.44      
4 A1 1487 1470 7.17      
5 A1 1428 1413 1.04      
6 A1 1191 1178 3.05      
7 A1 1062 1050 7.36      
8 A1 1004 993 24.40      
9 A1 868 858 0.00      
10 A2 847 838 0.00      
11 A2 657 650 0.00      
12 A2 620 613 0.00      
13 B1 791 782 2.79      
14 B1 696 689 123.71      
15 B1 639 632 0.22      
16 B1 506 501 63.41      
17 B2 3208 3173 0.10      
18 B2 3183 3148 1.59      
19 B2 1549 1532 2.03      
20 B2 1469 1453 3.04      
21 B2 1242 1228 4.19      
22 B2 1122 1109 5.13      
23 B2 1025 1014 28.50      
24 B2 844 835 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 17713.0 cm-1
Scaled (by 0.989) Zero Point Vibrational Energy (zpe) 17518.1 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 LSDA/cc-pVDZ
ABC
0.30670 0.30055 0.15180

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.115
H2 0.000 0.000 2.134
C3 0.000 1.120 0.335
C4 0.000 -1.120 0.335
C5 0.000 0.708 -0.983
C6 0.000 -0.708 -0.983
H7 0.000 2.122 0.777
H8 0.000 -2.122 0.777
H9 0.000 1.367 -1.859
H10 0.000 -1.367 -1.859

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.01921.36471.36472.21472.21472.14862.14863.27343.2734
H21.01922.11932.11933.19713.19712.51902.51904.22104.2210
C31.36472.11932.23951.38112.25371.09523.27152.20823.3162
C41.36472.11932.23952.25371.38113.27151.09523.31622.2082
C52.21473.19711.38112.25371.41622.25763.33261.09592.2521
C62.21473.19712.25371.38111.41623.33262.25762.25211.0959
H72.14862.51901.09523.27152.25763.33264.24372.74224.3724
H82.14862.51903.27151.09523.33262.25764.24374.37242.7422
H93.27344.22102.20823.31621.09592.25212.74224.37242.7332
H103.27344.22103.31622.20822.25211.09594.37242.74222.7332

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.527 N1 C3 H7 121.343
N1 C4 C6 107.527 N1 C4 H8 121.343
H2 N1 C3 124.867 H2 N1 C4 124.867
C3 N1 C4 110.267 C3 C5 C6 107.340
C3 C5 H9 125.729 C4 C6 C5 107.340
C4 C6 H10 125.729 C5 C3 H7 131.130
C5 C6 H10 126.931 C6 C4 H8 131.130
C6 C5 H9 126.931
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.027      
2 H 0.118      
3 C -0.024      
4 C -0.024      
5 C -0.059      
6 C -0.059      
7 H 0.032      
8 H 0.032      
9 H 0.006      
10 H 0.006      


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 2.070 2.070
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.297 0.000 0.000
y 0.000 -26.845 0.000
z 0.000 0.000 -23.288
Traceless
 xyz
x -8.230 0.000 0.000
y 0.000 1.448 0.000
z 0.000 0.000 6.782
Polar
3z2-r213.565
x2-y2-6.452
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.123 0.000 0.000
y 0.000 8.428 0.000
z 0.000 0.000 8.101


<r2> (average value of r2) Å2
<r2> 85.503
(<r2>)1/2 9.247