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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: MP2=FULL/6-31G*

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=FULL/6-31G*
 hartrees
Energy at 0K-209.504176
Energy at 298.15K-209.510140
HF Energy-208.805891
Nuclear repulsion energy160.905015
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=FULL/6-31G*
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 3686 3473 73.31      
2 A1 3324 3132 0.06      
3 A1 3304 3113 3.17      
4 A1 1542 1453 6.84      
5 A1 1473 1388 5.78      
6 A1 1196 1127 2.16      
7 A1 1136 1070 5.00      
8 A1 1072 1010 25.80      
9 A1 904 852 0.19      
10 A2 796 750 0.00      
11 A2 639 602 0.00      
12 A2 592 558 0.00      
13 B1 777 733 28.49      
14 B1 711 670 125.55      
15 B1 641 604 6.55      
16 B1 470 443 72.75      
17 B2 3319 3127 3.67      
18 B2 3293 3103 1.93      
19 B2 1601 1509 3.54      
20 B2 1522 1434 15.17      
21 B2 1339 1261 1.77      
22 B2 1201 1131 2.86      
23 B2 1096 1032 23.48      
24 B2 881 830 1.08      

Unscaled Zero Point Vibrational Energy (zpe) 18256.4 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 17201.1 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=FULL/6-31G*
ABC
0.30599 0.30053 0.15162

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

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 2.130
C3 0.000 1.124 0.333
C4 0.000 -1.124 0.333
C5 0.000 0.708 -0.984
C6 0.000 -0.708 -0.984
H7 0.000 2.113 0.770
H8 0.000 -2.113 0.770
H9 0.000 1.357 -1.849
H10 0.000 -1.357 -1.849

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.01071.37161.37162.21892.21892.14152.14153.26383.2638
H21.01072.11912.11913.19313.19312.51252.51254.20414.2041
C31.37162.11912.24881.38152.25701.08073.26662.19523.3049
C41.37162.11912.24882.25701.38153.26661.08073.30492.1952
C52.21893.19311.38152.25701.41662.24713.32201.08172.2393
C62.21893.19312.25701.38151.41663.32202.24712.23931.0817
H72.14152.51251.08073.26662.24713.32204.22582.72654.3477
H82.14152.51253.26661.08073.32202.24714.22584.34772.7265
H93.26384.20412.19523.30491.08172.23932.72654.34772.7139
H103.26384.20413.30492.19522.23931.08174.34772.72652.7139

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.408 N1 C3 H7 121.226
N1 C4 C6 107.408 N1 C4 H8 121.226
H2 N1 C3 124.938 H2 N1 C4 124.938
C3 N1 C4 110.125 C3 C5 C6 107.529
C3 C5 H9 125.624 C4 C6 C5 107.529
C4 C6 H10 125.624 C5 C3 H7 131.365
C5 C6 H10 126.847 C6 C4 H8 131.365
C6 C5 H9 126.847
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability