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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: QCISD/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 QCISD/aug-cc-pVDZ
 hartrees
Energy at 0K-209.590708
Energy at 298.15K 
HF Energy-208.836176
Nuclear repulsion energy159.606164
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/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 3703 3587 70.03      
2 A1 3292 3189 0.12      
3 A1 3269 3166 2.89      
4 A1 1513 1465 15.23      
5 A1 1434 1390 2.51      
6 A1 1172 1135 3.10      
7 A1 1089 1055 9.65      
8 A1 1033 1000 29.27      
9 A1 892 864 0.33      
10 A2 835 809 0.00      
11 A2 699 677 0.00      
12 A2 611 592 0.00      
13 B1 824 799 0.00      
14 B1 734 711 165.61      
15 B1 628 609 0.02      
16 B1 463 448 70.03      
17 B2 3285 3183 3.23      
18 B2 3257 3155 2.77      
19 B2 1585 1535 1.00      
20 B2 1475 1429 9.05      
21 B2 1305 1264 1.15      
22 B2 1157 1120 1.65      
23 B2 1068 1035 18.56      
24 B2 869 841 1.72      

Unscaled Zero Point Vibrational Energy (zpe) 18095.5 cm-1
Scaled (by 0.9687) Zero Point Vibrational Energy (zpe) 17529.1 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 QCISD/aug-cc-pVDZ
ABC
0.30011 0.29630 0.14910

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.129
H2 0.000 0.000 2.138
C3 0.000 1.132 0.335
C4 0.000 -1.132 0.335
C5 0.000 0.720 -0.991
C6 0.000 -0.720 -0.991
H7 0.000 2.128 0.774
H8 0.000 -2.128 0.774
H9 0.000 1.376 -1.861
H10 0.000 -1.376 -1.861

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00931.38301.38302.23882.23882.15792.15793.29143.2914
H21.00932.12942.12943.21093.21092.52832.52834.22954.2295
C31.38302.12942.26471.38822.27811.08853.29022.20953.3336
C41.38302.12942.26472.27811.38823.29021.08853.33362.2095
C52.23883.21091.38822.27811.44062.25743.35091.08962.2695
C62.23883.21092.27811.38821.44063.35092.25742.26951.0896
H72.15792.52831.08853.29022.25743.35094.25692.74034.3842
H82.15792.52833.29021.08853.35092.25744.25694.38422.7403
H93.29144.22952.20953.33361.08962.26952.74034.38422.7513
H103.29144.22953.33362.20952.26951.08964.38422.74032.7513

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.774 N1 C3 H7 121.189
N1 C4 C6 107.774 N1 C4 H8 121.189
H2 N1 C3 125.040 H2 N1 C4 125.040
C3 N1 C4 109.920 C3 C5 C6 107.266
C3 C5 H9 125.758 C4 C6 C5 107.266
C4 C6 H10 125.758 C5 C3 H7 131.037
C5 C6 H10 126.976 C6 C4 H8 131.037
C6 C5 H9 126.976
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability