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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: B3PW91/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-210.169361
Energy at 298.15K 
HF Energy-210.169361
Nuclear repulsion energy161.539255
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 B3PW91/aug-cc-pVTZ
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 3691 3562 66.74      
2 A1 3272 3157 0.02      
3 A1 3251 3137 2.43      
4 A1 1506 1454 10.00      
5 A1 1427 1377 3.09      
6 A1 1183 1142 2.78      
7 A1 1095 1057 7.85      
8 A1 1037 1001 29.32      
9 A1 899 868 0.21      
10 A2 892 860 0.00      
11 A2 702 678 0.00      
12 A2 631 609 0.00      
13 B1 850 820 0.64      
14 B1 737 712 158.96      
15 B1 646 623 0.04      
16 B1 511 493 71.08      
17 B2 3265 3151 2.02      
18 B2 3240 3126 2.31      
19 B2 1579 1524 1.62      
20 B2 1460 1409 5.74      
21 B2 1309 1264 1.51      
22 B2 1161 1120 3.00      
23 B2 1069 1032 25.89      
24 B2 876 846 1.46      

Unscaled Zero Point Vibrational Energy (zpe) 18143.4 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 17510.2 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 B3PW91/aug-cc-pVTZ
ABC
0.30786 0.30334 0.15279

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVTZ

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 2.119
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 2.105 0.763
H8 0.000 -2.105 0.763
H9 0.000 1.357 -1.840
H10 0.000 -1.357 -1.840

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00291.36661.36662.21122.21122.13452.13453.25253.2525
H21.00292.10892.10893.17753.17752.50372.50374.18494.1849
C31.36662.10892.23781.37242.24881.07703.25312.18433.2929
C41.36662.10892.23782.24881.37243.25311.07703.29292.1843
C52.21123.17751.37242.24881.41822.23273.31001.07792.2383
C62.21123.17752.24881.37241.41823.31002.23272.23831.0779
H72.13452.50371.07703.25312.23273.31004.21062.70934.3319
H82.13452.50373.25311.07703.31002.23274.21064.33192.7093
H93.25254.18492.18433.29291.07792.23832.70934.33192.7135
H103.25254.18493.29292.18432.23831.07794.33192.70932.7135

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.667 N1 C3 H7 121.284
N1 C4 C6 107.667 N1 C4 H8 121.284
H2 N1 C3 125.041 H2 N1 C4 125.041
C3 N1 C4 109.919 C3 C5 C6 107.374
C3 C5 H9 125.693 C4 C6 C5 107.374
C4 C6 H10 125.693 C5 C3 H7 131.049
C5 C6 H10 126.933 C6 C4 H8 131.049
C6 C5 H9 126.933
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.156      
2 H 0.008      
3 C -0.577      
4 C -0.577      
5 C -0.371      
6 C -0.371      
7 H 0.526      
8 H 0.526      
9 H 0.340      
10 H 0.340      


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 1.862 1.862
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.836 0.000 0.000
y 0.000 -27.027 0.000
z 0.000 0.000 -23.790
Traceless
 xyz
x -8.428 0.000 0.000
y 0.000 1.786 0.000
z 0.000 0.000 6.641
Polar
3z2-r213.282
x2-y2-6.809
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.675 0.000 0.000
y 0.000 9.374 0.000
z 0.000 0.000 8.971


<r2> (average value of r2) Å2
<r2> 85.177
(<r2>)1/2 9.229