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: MP3=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3=FULL/6-311G*
 hartrees
Energy at 0K-209.670259
Energy at 298.15K 
HF Energy-208.847297
Nuclear repulsion energy160.877617
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 MP3=FULL/6-311G*
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 3770 3770 63.09      
2 A1 3310 3310 0.30      
3 A1 3288 3288 4.46      
4 A1 1547 1547 8.94      
5 A1 1454 1454 5.82      
6 A1 1199 1199 3.48      
7 A1 1118 1118 13.97      
8 A1 1055 1055 27.96      
9 A1 913 913 0.31      
10 A2 794 794 0.00      
11 A2 672 672 0.00      
12 A2 600 600 0.00      
13 B1 797 797 4.55      
14 B1 725 725 179.59      
15 B1 640 640 0.21      
16 B1 433 433 85.10      
17 B2 3304 3304 6.53      
18 B2 3277 3277 2.61      
19 B2 1618 1618 5.31      
20 B2 1524 1524 12.31      
21 B2 1335 1335 1.15      
22 B2 1194 1194 2.09      
23 B2 1090 1090 23.95      
24 B2 890 890 1.47      

Unscaled Zero Point Vibrational Energy (zpe) 18273.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18273.3 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 MP3=FULL/6-311G*
ABC
0.30531 0.30063 0.15148

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.121
H2 0.000 0.000 2.123
C3 0.000 1.123 0.333
C4 0.000 -1.123 0.333
C5 0.000 0.714 -0.984
C6 0.000 -0.714 -0.984
H7 0.000 2.112 0.766
H8 0.000 -2.112 0.766
H9 0.000 1.363 -1.847
H10 0.000 -1.363 -1.847

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00171.37181.37182.22242.22242.14122.14123.26623.2662
H21.00172.11292.11293.18743.18742.51002.51004.19744.1974
C31.37182.11292.24531.37832.25961.07953.26302.19303.3062
C41.37182.11292.24532.25961.37833.26301.07953.30622.1930
C52.22243.18741.37832.25961.42792.23903.32311.08032.2495
C62.22243.18742.25961.37831.42793.32312.23902.24951.0803
H72.14122.51001.07953.26302.23903.32314.22302.71784.3475
H82.14122.51003.26301.07953.32312.23904.22304.34752.7178
H93.26624.19742.19303.30621.08032.24952.71784.34752.7265
H103.26624.19743.30622.19302.24951.08034.34752.71782.7265

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.828 N1 C3 H7 121.279
N1 C4 C6 107.828 N1 C4 H8 121.279
H2 N1 C3 125.076 H2 N1 C4 125.076
C3 N1 C4 109.848 C3 C5 C6 107.248
C3 C5 H9 125.809 C4 C6 C5 107.248
C4 C6 H10 125.809 C5 C3 H7 130.893
C5 C6 H10 126.943 C6 C4 H8 130.893
C6 C5 H9 126.943
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability