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: CCSD(T)=FULL/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 CCSD(T)=FULL/Def2TZVPP
 hartrees
Energy at 0K-209.896507
Energy at 298.15K 
HF Energy-208.891033
Nuclear repulsion energy161.007750
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 CCSD(T)=FULL/Def2TZVPP
Rotational Constants (cm-1) from geometry optimized at CCSD(T)=FULL/Def2TZVPP
ABC
0.30570 0.30106 0.15168

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/Def2TZVPP

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 0.332
C4 0.000 -1.123 0.332
C5 0.000 0.713 -0.983
C6 0.000 -0.713 -0.983
H7 0.000 2.106 0.765
H8 0.000 -2.106 0.765
H9 0.000 1.360 -1.842
H10 0.000 -1.360 -1.842

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00191.37241.37242.22162.22162.13642.13643.26003.2600
H21.00192.11392.11393.18683.18682.50642.50644.19144.1914
C31.37242.11392.24601.37752.25851.07443.25832.18653.3002
C41.37242.11392.24602.25851.37753.25831.07443.30022.1865
C52.22163.18681.37752.25851.42622.23523.31731.07522.2441
C62.22163.18682.25851.37751.42623.31732.23522.24411.0752
H72.13642.50641.07443.25832.23523.31734.21292.71104.3372
H82.13642.50643.25831.07443.31732.23524.21294.33722.7110
H93.26004.19142.18653.30021.07522.24412.71104.33722.7207
H103.26004.19143.30022.18652.24411.07524.33722.71102.7207

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.778 N1 C3 H7 121.163
N1 C4 C6 107.778 N1 C4 H8 121.163
H2 N1 C3 125.090 H2 N1 C4 125.090
C3 N1 C4 109.819 C3 C5 C6 107.312
C3 C5 H9 125.675 C4 C6 C5 107.312
C4 C6 H10 125.675 C5 C3 H7 131.059
C5 C6 H10 127.013 C6 C4 H8 131.059
C6 C5 H9 127.013
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability