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/TZVP

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/TZVP
 hartrees
Energy at 0K-209.716652
Energy at 298.15K 
HF Energy-208.876744
Nuclear repulsion energy161.351649
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/TZVP
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 3765 3515 78.75      
2 A1 3340 3119 0.15      
3 A1 3318 3098 2.83      
4 A1 1546 1443 14.03      
5 A1 1452 1356 5.80      
6 A1 1195 1116 3.15      
7 A1 1117 1043 14.76      
8 A1 1057 987 28.50      
9 A1 913 853 0.40      
10 A2 699 652 0.00      
11 A2 593 553 0.00      
12 A2 262i 245i 0.00      
13 B1 733 685 21.26      
14 B1 679 634 172.73      
15 B1 590 551 1.80      
16 B1 172 161 52.38      
17 B2 3333 3112 3.69      
18 B2 3307 3088 2.38      
19 B2 1618 1511 2.09      
20 B2 1507 1407 13.20      
21 B2 1347 1258 0.93      
22 B2 1190 1111 1.44      
23 B2 1094 1021 22.53      
24 B2 892 833 1.83      

Unscaled Zero Point Vibrational Energy (zpe) 17597.2 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 16430.5 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/TZVP
ABC
0.30682 0.30267 0.15237

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.119
H2 0.000 0.000 2.120
C3 0.000 1.121 0.330
C4 0.000 -1.121 0.330
C5 0.000 0.712 -0.980
C6 0.000 -0.712 -0.980
H7 0.000 2.104 0.761
H8 0.000 -2.104 0.761
H9 0.000 1.357 -1.839
H10 0.000 -1.357 -1.839

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00101.37051.37052.21612.21612.13442.13443.25473.2547
H21.00102.11192.11193.18043.18042.50472.50474.18544.1854
C31.37052.11192.24121.37192.25241.07413.25362.18203.2932
C41.37052.11192.24122.25241.37193.25361.07413.29322.1820
C52.21613.18041.37192.25241.42402.22933.31101.07482.2407
C62.21613.18042.25241.37191.42403.31102.22932.24071.0748
H72.13442.50471.07413.25362.22933.31104.20852.70584.3296
H82.13442.50473.25361.07413.31102.22934.20854.32962.7058
H93.25474.18542.18203.29321.07482.24072.70584.32962.7146
H103.25474.18543.29322.18202.24071.07484.32962.70582.7146

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.822 N1 C3 H7 121.163
N1 C4 C6 107.822 N1 C4 H8 121.163
H2 N1 C3 125.150 H2 N1 C4 125.150
C3 N1 C4 109.699 C3 C5 C6 107.328
C3 C5 H9 125.777 C4 C6 C5 107.328
C4 C6 H10 125.777 C5 C3 H7 131.015
C5 C6 H10 126.895 C6 C4 H8 131.015
C6 C5 H9 126.895
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability