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: B2PLYP=FULLultrafine/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULLultrafine/Def2TZVPP
 hartrees
Energy at 0K-210.096428
Energy at 298.15K 
HF Energy-209.792032
Nuclear repulsion energy161.334231
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 B2PLYP=FULLultrafine/Def2TZVPP
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 3697 3697 71.00      
2 A1 3292 3292 0.04      
3 A1 3272 3272 2.53      
4 A1 1509 1509 7.82      
5 A1 1426 1426 3.81      
6 A1 1176 1176 1.93      
7 A1 1100 1100 7.14      
8 A1 1040 1040 30.05      
9 A1 902 902 0.24      
10 A2 882 882 0.00      
11 A2 697 697 0.00      
12 A2 630 630 0.00      
13 B1 841 841 1.52      
14 B1 739 739 156.34      
15 B1 646 646 0.01      
16 B1 482 482 69.11      
17 B2 3286 3286 2.19      
18 B2 3262 3262 2.36      
19 B2 1576 1576 2.64      
20 B2 1460 1460 6.89      
21 B2 1323 1323 0.90      
22 B2 1166 1166 1.97      
23 B2 1073 1073 25.17      
24 B2 881 881 1.46      

Unscaled Zero Point Vibrational Energy (zpe) 18178.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18178.9 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 B2PLYP=FULLultrafine/Def2TZVPP
ABC
0.30696 0.30244 0.15234

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.118
H2 0.000 0.000 2.120
C3 0.000 1.121 0.331
C4 0.000 -1.121 0.331
C5 0.000 0.710 -0.981
C6 0.000 -0.710 -0.981
H7 0.000 2.105 0.763
H8 0.000 -2.105 0.763
H9 0.000 1.356 -1.840
H10 0.000 -1.356 -1.840

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00201.36981.36982.21542.21542.13462.13463.25373.2537
H21.00202.11122.11123.18093.18092.50442.50444.18554.1855
C31.36982.11122.24291.37492.25291.07393.25502.18373.2939
C41.36982.11122.24292.25291.37493.25501.07393.29392.1837
C52.21543.18091.37492.25291.42012.23273.31111.07472.2373
C62.21543.18092.25291.37491.42013.31112.23272.23731.0747
H72.13462.50441.07393.25502.23273.31114.20972.70834.3300
H82.13462.50443.25501.07393.31112.23274.20974.33002.7083
H93.25374.18552.18373.29391.07472.23732.70834.33002.7114
H103.25374.18553.29392.18372.23731.07474.33002.70832.7114

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.638 N1 C3 H7 121.260
N1 C4 C6 107.638 N1 C4 H8 121.260
H2 N1 C3 125.048 H2 N1 C4 125.048
C3 N1 C4 109.905 C3 C5 C6 107.409
C3 C5 H9 125.670 C4 C6 C5 107.409
C4 C6 H10 125.670 C5 C3 H7 131.102
C5 C6 H10 126.921 C6 C4 H8 131.102
C6 C5 H9 126.921
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability