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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: CISD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CISD/cc-pVDZ
 hartrees
Energy at 0K-209.436476
Energy at 298.15K 
HF Energy-208.828555
Nuclear repulsion energy161.032547
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 CISD/cc-pVDZ
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 3823 3524 88.00      
2 A1 3388 3123 0.17      
3 A1 3364 3101 3.09      
4 A1 1584 1460 12.46      
5 A1 1497 1380 4.03      
6 A1 1227 1131 4.46      
7 A1 1129 1041 13.76      
8 A1 1069 986 25.85      
9 A1 923 851 0.26      
10 A2 920 848 0.00      
11 A2 751 692 0.00      
12 A2 643 593 0.00      
13 B1 893 823 0.29      
14 B1 779 718 133.49      
15 B1 663 612 0.12      
16 B1 484 446 80.47      
17 B2 3380 3116 4.10      
18 B2 3352 3090 2.84      
19 B2 1661 1531 3.80      
20 B2 1550 1428 7.27      
21 B2 1357 1251 1.76      
22 B2 1201 1107 2.23      
23 B2 1108 1022 20.87      
24 B2 901 831 1.64      

Unscaled Zero Point Vibrational Energy (zpe) 18824.3 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 17352.2 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 CISD/cc-pVDZ
ABC
0.30586 0.30144 0.15182

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/cc-pVDZ

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 2.122
C3 0.000 1.120 0.332
C4 0.000 -1.120 0.332
C5 0.000 0.715 -0.982
C6 0.000 -0.715 -0.982
H7 0.000 2.111 0.767
H8 0.000 -2.111 0.767
H9 0.000 1.367 -1.846
H10 0.000 -1.367 -1.846

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00301.36881.36882.21922.21922.14022.14023.26543.2654
H21.00302.11132.11133.18523.18522.50832.50834.19724.1972
C31.36882.11132.24021.37542.25681.08243.26032.19253.3066
C41.36882.11132.24022.25681.37543.26031.08243.30662.1925
C52.21923.18521.37542.25681.42912.23853.32341.08312.2542
C62.21923.18522.25681.37541.42913.32342.23852.25421.0831
H72.14022.50831.08243.26032.23853.32344.22222.71744.3510
H82.14022.50833.26031.08243.32342.23854.22224.35102.7174
H93.26544.19722.19253.30661.08312.25422.71744.35102.7347
H103.26544.19723.30662.19252.25421.08314.35102.71742.7347

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.938 N1 C3 H7 121.207
N1 C4 C6 107.938 N1 C4 H8 121.207
H2 N1 C3 125.086 H2 N1 C4 125.086
C3 N1 C4 109.828 C3 C5 C6 107.147
C3 C5 H9 125.788 C4 C6 C5 107.147
C4 C6 H10 125.788 C5 C3 H7 130.855
C5 C6 H10 127.064 C6 C4 H8 130.855
C6 C5 H9 127.064
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability