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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: MP2/aug-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 MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-209.563020
Energy at 298.15K 
HF Energy-208.835484
Nuclear repulsion energy159.607438
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/aug-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 3673 3522 75.84      
2 A1 3305 3170 0.03      
3 A1 3283 3149 1.62      
4 A1 1496 1434 11.56      
5 A1 1431 1373 1.57      
6 A1 1168 1120 2.33      
7 A1 1096 1051 4.06      
8 A1 1037 994 28.28      
9 A1 882 846 0.22      
10 A2 817 784 0.00      
11 A2 664 637 0.00      
12 A2 609 584 0.00      
13 B1 792 760 2.89      
14 B1 719 689 176.93      
15 B1 637 611 1.60      
16 B1 515 494 59.05      
17 B2 3299 3164 1.37      
18 B2 3272 3138 1.84      
19 B2 1545 1482 0.34      
20 B2 1481 1420 10.38      
21 B2 1292 1239 1.56      
22 B2 1158 1110 2.80      
23 B2 1056 1013 23.75      
24 B2 859 824 1.16      

Unscaled Zero Point Vibrational Energy (zpe) 18042.7 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 17302.9 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/aug-cc-pVDZ
ABC
0.30112 0.29536 0.14911

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.126
H2 0.000 0.000 2.138
C3 0.000 1.133 0.339
C4 0.000 -1.133 0.339
C5 0.000 0.715 -0.994
C6 0.000 -0.715 -0.994
H7 0.000 2.127 0.780
H8 0.000 -2.127 0.780
H9 0.000 1.371 -1.863
H10 0.000 -1.371 -1.863

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.01221.37951.37952.23762.23762.15552.15553.28873.2887
H21.01222.12622.12623.21303.21302.52412.52414.22984.2298
C31.37952.12622.26601.39752.27861.08783.29022.21513.3349
C41.37952.12622.26602.27861.39753.29021.08783.33492.2151
C52.23763.21301.39752.27861.42942.26803.35051.08902.2597
C62.23763.21302.27861.39751.42943.35052.26802.25971.0890
H72.15552.52411.08783.29022.26803.35054.25502.74924.3849
H82.15552.52413.29021.08783.35052.26804.25504.38492.7492
H93.28874.22982.21513.33491.08902.25972.74924.38492.7424
H103.28874.22983.33492.21512.25971.08904.38492.74922.7424

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.366 N1 C3 H7 121.310
N1 C4 C6 107.366 N1 C4 H8 121.310
H2 N1 C3 124.783 H2 N1 C4 124.783
C3 N1 C4 110.434 C3 C5 C6 107.417
C3 C5 H9 125.508 C4 C6 C5 107.417
C4 C6 H10 125.508 C5 C3 H7 131.325
C5 C6 H10 127.074 C6 C4 H8 131.325
C6 C5 H9 127.074
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability