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: CCD/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 CCD/6-311G**
 hartrees
Energy at 0K-209.613686
Energy at 298.15K 
HF Energy-208.858750
Nuclear repulsion energy160.748159
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 CCD/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 3741 3573 73.91      
2 A1 3299 3151 0.34      
3 A1 3276 3129 3.85      
4 A1 1538 1469 11.65      
5 A1 1447 1382 5.18      
6 A1 1192 1138 4.20      
7 A1 1109 1060 13.22      
8 A1 1049 1002 24.30      
9 A1 905 864 0.25      
10 A2 830 793 0.00      
11 A2 691 660 0.00      
12 A2 599 572 0.00      
13 B1 826 789 1.18      
14 B1 733 700 152.63      
15 B1 637 608 0.00      
16 B1 424 405 77.23      
17 B2 3292 3144 6.08      
18 B2 3265 3119 2.53      
19 B2 1609 1537 2.99      
20 B2 1514 1446 12.44      
21 B2 1328 1269 1.19      
22 B2 1182 1129 1.75      
23 B2 1083 1035 19.07      
24 B2 882 843 1.43      

Unscaled Zero Point Vibrational Energy (zpe) 18225.7 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 17407.3 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 CCD/6-311G**
ABC
0.30465 0.30035 0.15124

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/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 2.126
C3 0.000 1.124 0.333
C4 0.000 -1.124 0.333
C5 0.000 0.715 -0.984
C6 0.000 -0.715 -0.984
H7 0.000 2.113 0.768
H8 0.000 -2.113 0.768
H9 0.000 1.365 -1.848
H10 0.000 -1.365 -1.848

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00431.37311.37312.22342.22342.14222.14223.26793.2679
H21.00432.11622.11623.19083.19082.51162.51164.20154.2015
C31.37312.11622.24801.37872.26151.08043.26602.19393.3088
C41.37312.11622.24802.26151.37873.26601.08043.30882.1939
C52.22343.19081.37872.26151.42962.24133.32641.08112.2518
C62.22343.19082.26151.37871.42963.32642.24132.25181.0811
H72.14222.51161.08043.26602.24133.32644.22572.72084.3515
H82.14222.51163.26601.08043.32642.24134.22574.35152.7208
H93.26794.20152.19393.30881.08112.25182.72084.35152.7292
H103.26794.20153.30882.19392.25181.08114.35152.72082.7292

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.795 N1 C3 H7 121.185
N1 C4 C6 107.795 N1 C4 H8 121.185
H2 N1 C3 125.059 H2 N1 C4 125.059
C3 N1 C4 109.882 C3 C5 C6 107.264
C3 C5 H9 125.791 C4 C6 C5 107.264
C4 C6 H10 125.791 C5 C3 H7 131.020
C5 C6 H10 126.945 C6 C4 H8 131.020
C6 C5 H9 126.945
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability