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: wB97X-D/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/TZVP
 hartrees
Energy at 0K-210.167024
Energy at 298.15K-210.173168
HF Energy-210.167024
Nuclear repulsion energy161.574499
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 wB97X-D/TZVP
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 3722 3555 73.93      
2 A1 3300 3152 0.03      
3 A1 3274 3127 2.39      
4 A1 1526 1457 11.01      
5 A1 1438 1373 3.97      
6 A1 1191 1138 2.94      
7 A1 1105 1055 14.32      
8 A1 1040 993 29.98      
9 A1 909 868 0.27      
10 A2 909 868 0.00      
11 A2 704 672 0.00      
12 A2 635 607 0.00      
13 B1 857 819 4.26      
14 B1 739 705 159.01      
15 B1 646 617 0.01      
16 B1 503 480 82.33      
17 B2 3295 3147 1.69      
18 B2 3262 3115 3.05      
19 B2 1599 1527 3.16      
20 B2 1480 1413 7.31      
21 B2 1322 1263 2.01      
22 B2 1179 1126 3.45      
23 B2 1077 1028 29.75      
24 B2 888 848 1.75      

Unscaled Zero Point Vibrational Energy (zpe) 18300.0 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 17476.5 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 wB97X-D/TZVP
ABC
0.30780 0.30370 0.15287

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/TZVP

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 2.117
C3 0.000 1.119 0.330
C4 0.000 -1.119 0.330
C5 0.000 0.709 -0.977
C6 0.000 -0.709 -0.977
H7 0.000 2.104 0.764
H8 0.000 -2.104 0.764
H9 0.000 1.355 -1.839
H10 0.000 -1.355 -1.839

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00251.36651.36652.20852.20852.13282.13283.24983.2498
H21.00252.10862.10863.17433.17432.50142.50144.18194.1819
C31.36652.10862.23721.36972.24641.07663.25152.18163.2900
C41.36652.10862.23722.24641.36973.25151.07663.29002.1816
C52.20853.17431.36972.24641.41712.23113.30761.07762.2367
C62.20853.17432.24641.36971.41713.30762.23112.23671.0776
H72.13282.50141.07663.25152.23113.30764.20762.70834.3291
H82.13282.50143.25151.07663.30762.23114.20764.32912.7083
H93.24984.18192.18163.29001.07762.23672.70834.32912.7108
H103.24984.18193.29002.18162.23671.07764.32912.70832.7108

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.635 N1 C3 H7 121.163
N1 C4 C6 107.635 N1 C4 H8 121.163
H2 N1 C3 125.056 H2 N1 C4 125.056
C3 N1 C4 109.889 C3 C5 C6 107.421
C3 C5 H9 125.689 C4 C6 C5 107.421
C4 C6 H10 125.689 C5 C3 H7 131.202
C5 C6 H10 126.890 C6 C4 H8 131.202
C6 C5 H9 126.890
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.141      
2 H 0.248      
3 C -0.172      
4 C -0.172      
5 C -0.146      
6 C -0.146      
7 H 0.130      
8 H 0.130      
9 H 0.134      
10 H 0.134      


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 1.987 1.987
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.022 0.000 0.000
y 0.000 -26.667 0.000
z 0.000 0.000 -23.419
Traceless
 xyz
x -8.979 0.000 0.000
y 0.000 2.053 0.000
z 0.000 0.000 6.926
Polar
3z2-r213.853
x2-y2-7.355
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.691 0.000 0.000
y 0.000 8.424 0.000
z 0.000 0.000 8.266


<r2> (average value of r2) Å2
<r2> 85.032
(<r2>)1/2 9.221