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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: CCD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/3-21G*
 hartrees
Energy at 0K-208.131151
Energy at 298.15K 
HF Energy-207.643938
Nuclear repulsion energy159.091627
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 CCD/3-21G*
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 3622 3465 64.28      
2 A1 3270 3128 0.17      
3 A1 3243 3102 4.51      
4 A1 1493 1428 4.94      
5 A1 1401 1340 10.12      
6 A1 1167 1116 0.10      
7 A1 1086 1039 17.35      
8 A1 1027 982 23.48      
9 A1 932 892 0.75      
10 A2 827 791 0.00      
11 A2 705 675 0.00      
12 A2 626 598 0.00      
13 B1 830 794 2.02      
14 B1 732 700 136.50      
15 B1 640 613 0.14      
16 B1 566 541 136.21      
17 B2 3259 3118 6.83      
18 B2 3232 3092 1.63      
19 B2 1581 1512 9.66      
20 B2 1460 1397 18.80      
21 B2 1343 1285 0.33      
22 B2 1185 1134 0.00      
23 B2 1073 1026 15.94      
24 B2 918 878 0.85      

Unscaled Zero Point Vibrational Energy (zpe) 18108.6 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 17320.9 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 CCD/3-21G*
ABC
0.29718 0.29498 0.14804

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.139
H2 0.000 0.000 2.150
C3 0.000 1.141 0.331
C4 0.000 -1.141 0.331
C5 0.000 0.723 -0.991
C6 0.000 -0.723 -0.991
H7 0.000 2.135 0.756
H8 0.000 -2.135 0.756
H9 0.000 1.366 -1.861
H10 0.000 -1.366 -1.861

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.01101.39791.39792.24912.24912.16942.16943.29703.2970
H21.01102.14712.14713.22293.22292.55012.55014.23784.2378
C31.39792.14712.28131.38612.28481.08173.30342.20413.3303
C41.39792.14712.28132.28481.38613.30341.08173.33032.2041
C52.24913.22291.38612.28481.44622.24633.34991.08262.2635
C62.24913.22292.28481.38611.44623.34992.24632.26351.0826
H72.16942.55011.08173.30342.24633.34994.27072.72834.3718
H82.16942.55013.30341.08173.34992.24634.27074.37182.7283
H93.29704.23782.20413.33031.08262.26352.72834.37182.7323
H103.29704.23783.33032.20412.26351.08264.37182.72832.7323

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.783 N1 C3 H7 121.545
N1 C4 C6 107.783 N1 C4 H8 121.545
H2 N1 C3 125.316 H2 N1 C4 125.316
C3 N1 C4 109.368 C3 C5 C6 107.533
C3 C5 H9 126.024 C4 C6 C5 107.533
C4 C6 H10 126.024 C5 C3 H7 130.672
C5 C6 H10 126.443 C6 C4 H8 130.672
C6 C5 H9 126.443
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability