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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-208.936292
Energy at 298.15K-208.942533
HF Energy-208.936292
Nuclear repulsion energy160.169178
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 B3PW91/3-21G
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 3634 3493 67.72      
2 A1 3312 3183 0.04      
3 A1 3285 3158 2.65      
4 A1 1490 1432 3.40      
5 A1 1414 1359 7.30      
6 A1 1171 1125 1.18      
7 A1 1112 1069 6.64      
8 A1 1040 1000 30.70      
9 A1 930 894 0.48      
10 A2 918 883 0.00      
11 A2 728 700 0.00      
12 A2 644 619 0.00      
13 B1 877 843 2.59      
14 B1 754 724 144.21      
15 B1 652 626 1.01      
16 B1 610 586 143.13      
17 B2 3301 3173 2.75      
18 B2 3274 3147 2.08      
19 B2 1578 1517 11.49      
20 B2 1445 1389 8.68      
21 B2 1331 1279 0.08      
22 B2 1182 1136 1.88      
23 B2 1075 1033 29.56      
24 B2 913 877 0.75      

Unscaled Zero Point Vibrational Energy (zpe) 18333.3 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 17621.9 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 B3PW91/3-21G
ABC
0.30198 0.29854 0.15012

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.129
H2 0.000 0.000 2.140
C3 0.000 1.132 0.331
C4 0.000 -1.132 0.331
C5 0.000 0.715 -0.985
C6 0.000 -0.715 -0.985
H7 0.000 2.123 0.753
H8 0.000 -2.123 0.753
H9 0.000 1.357 -1.852
H10 0.000 -1.357 -1.852

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.01051.38501.38502.23232.23232.15662.15663.27583.2758
H21.01052.13362.13363.20593.20592.53632.53634.21644.2164
C31.38502.13362.26381.38102.26831.07743.28262.19523.3107
C41.38502.13362.26382.26831.38103.28261.07743.31072.1952
C52.23233.20591.38102.26831.43042.23703.32851.07852.2459
C62.23233.20592.26831.38101.43043.32852.23702.24591.0785
H72.15662.53631.07743.28262.23703.32854.24692.71584.3471
H82.15662.53633.28261.07743.32852.23704.24694.34712.7158
H93.27584.21642.19523.31071.07852.24592.71584.34712.7130
H103.27584.21643.31072.19522.24591.07854.34712.71582.7130

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.622 N1 C3 H7 121.783
N1 C4 C6 107.622 N1 C4 H8 121.783
H2 N1 C3 125.185 H2 N1 C4 125.185
C3 N1 C4 109.630 C3 C5 C6 107.563
C3 C5 H9 125.951 C4 C6 C5 107.563
C4 C6 H10 125.951 C5 C3 H7 130.595
C5 C6 H10 126.487 C6 C4 H8 130.595
C6 C5 H9 126.487
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.719      
2 H 0.340      
3 C 0.044      
4 C 0.044      
5 C -0.281      
6 C -0.281      
7 H 0.226      
8 H 0.226      
9 H 0.200      
10 H 0.200      


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 2.015 2.015
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.924 0.000 0.000
y 0.000 -25.827 0.000
z 0.000 0.000 -22.736
Traceless
 xyz
x -9.642 0.000 0.000
y 0.000 2.503 0.000
z 0.000 0.000 7.139
Polar
3z2-r214.278
x2-y2-8.096
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.881 0.000 0.000
y 0.000 7.298 0.000
z 0.000 0.000 7.189


<r2> (average value of r2) Å2
<r2> 85.855
(<r2>)1/2 9.266