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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: MP2/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-209.192163
Energy at 298.15K-209.198116
HF Energy-208.746530
Nuclear repulsion energy157.498739
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 MP2/LANL2DZ
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 3677 3541 65.26      
2 A1 3289 3168 0.15      
3 A1 3258 3138 9.22      
4 A1 1471 1417 9.23      
5 A1 1400 1349 5.89      
6 A1 1135 1094 0.00      
7 A1 1102 1061 4.77      
8 A1 1027 989 44.03      
9 A1 897 864 0.54      
10 A2 773 744 0.00      
11 A2 614 591 0.00      
12 A2 598 576 0.00      
13 B1 754 727 18.97      
14 B1 681 656 271.20      
15 B1 622 599 0.26      
16 B1 567 546 66.30      
17 B2 3279 3158 10.34      
18 B2 3241 3121 3.71      
19 B2 1545 1488 7.10      
20 B2 1444 1390 21.14      
21 B2 1322 1273 0.00      
22 B2 1194 1150 0.33      
23 B2 1061 1022 29.12      
24 B2 880 847 0.99      

Unscaled Zero Point Vibrational Energy (zpe) 17915.4 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 17254.3 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 MP2/LANL2DZ
ABC
0.29181 0.28812 0.14497

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.147
H2 0.000 0.000 2.161
C3 0.000 1.154 0.341
C4 0.000 -1.154 0.341
C5 0.000 0.727 -1.006
C6 0.000 -0.727 -1.006
H7 0.000 2.149 0.776
H8 0.000 -2.149 0.776
H9 0.000 1.380 -1.876
H10 0.000 -1.380 -1.876

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.01431.40761.40762.27212.27212.18042.18043.32303.3230
H21.01432.15532.15533.24933.24932.55612.55614.26664.2666
C31.40762.15532.30791.41292.31301.08623.33132.22853.3666
C41.40762.15532.30792.31301.41293.33131.08623.36662.2285
C52.27213.24931.41292.31301.45312.28053.38311.08812.2789
C62.27213.24932.31301.41291.45313.38312.28052.27891.0881
H72.18042.55611.08623.33132.28053.38314.29752.76224.4145
H82.18042.55613.33131.08623.38312.28054.29754.41452.7622
H93.32304.26662.22853.36661.08812.27892.76224.41452.7593
H103.32304.26663.36662.22852.27891.08814.41452.76222.7593

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.330 N1 C3 H7 121.401
N1 C4 C6 107.330 N1 C4 H8 121.401
H2 N1 C3 124.936 H2 N1 C4 124.936
C3 N1 C4 110.129 C3 C5 C6 107.606
C3 C5 H9 125.512 C4 C6 C5 107.606
C4 C6 H10 125.512 C5 C3 H7 131.269
C5 C6 H10 126.883 C6 C4 H8 131.269
C6 C5 H9 126.883
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability