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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: QCISD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/6-311+G(3df,2p)
 hartrees
Energy at 0K-209.746080
Energy at 298.15K 
HF Energy-208.881897
Nuclear repulsion energy161.219531
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 QCISD/6-311+G(3df,2p)
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 3738 3565 77.71      
2 A1 3294 3141 0.09      
3 A1 3272 3121 1.98      
4 A1 1529 1458 12.98      
5 A1 1440 1374 4.12      
6 A1 1183 1128 2.87      
7 A1 1102 1051 12.28      
8 A1 1044 996 27.44      
9 A1 903 862 0.30      
10 A2 893 851 0.00      
11 A2 719 686 0.00      
12 A2 626 597 0.00      
13 B1 864 824 0.16      
14 B1 748 713 159.05      
15 B1 642 612 0.00      
16 B1 456 435 76.05      
17 B2 3287 3135 2.28      
18 B2 3261 3110 2.36      
19 B2 1600 1526 1.72      
20 B2 1480 1411 9.59      
21 B2 1332 1270 0.99      
22 B2 1173 1119 1.69      
23 B2 1083 1032 19.50      
24 B2 873 833 1.69      

Unscaled Zero Point Vibrational Energy (zpe) 18269.7 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 17423.8 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 QCISD/6-311+G(3df,2p)
ABC
0.30611 0.30244 0.15213

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311+G(3df,2p)

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 2.121
C3 0.000 1.121 0.330
C4 0.000 -1.121 0.330
C5 0.000 0.714 -0.980
C6 0.000 -0.714 -0.980
H7 0.000 2.107 0.764
H8 0.000 -2.107 0.764
H9 0.000 1.361 -1.841
H10 0.000 -1.361 -1.841

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00211.37061.37062.21682.21682.13632.13633.25753.2575
H21.00212.11252.11253.18203.18202.50572.50574.18894.1889
C31.37062.11252.24241.37242.25471.07663.25682.18433.2980
C41.37062.11252.24242.25471.37243.25681.07663.29802.1843
C52.21683.18201.37242.25471.42712.23213.31591.07722.2463
C62.21683.18202.25471.37241.42713.31592.23212.24631.0772
H72.13632.50571.07663.25682.23213.31594.21322.70914.3372
H82.13632.50573.25681.07663.31592.23214.21324.33722.7091
H93.25754.18892.18433.29801.07722.24632.70914.33722.7228
H103.25754.18893.29802.18432.24631.07724.33722.70912.7228

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.833 N1 C3 H7 121.136
N1 C4 C6 107.833 N1 C4 H8 121.136
H2 N1 C3 125.113 H2 N1 C4 125.113
C3 N1 C4 109.774 C3 C5 C6 107.280
C3 C5 H9 125.745 C4 C6 C5 107.280
C4 C6 H10 125.745 C5 C3 H7 131.031
C5 C6 H10 126.974 C6 C4 H8 131.031
C6 C5 H9 126.974
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability