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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: CCSD(T)/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD(T)/TZVP
 hartrees
Energy at 0K-209.667838
Energy at 298.15K 
HF Energy-208.875402
Nuclear repulsion energy160.565844
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 CCSD(T)/TZVP
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 3690 3551        
2 A1 3289 3166        
3 A1 3267 3145        
4 A1 1510 1454        
5 A1 1423 1370        
6 A1 1166 1122        
7 A1 1099 1058        
8 A1 1038 999        
9 A1 893 859        
10 A2 670 645        
11 A2 543 523        
12 A2 370i 356i        
13 B1 695 669        
14 B1 644 620        
15 B1 554 533        
16 B1 110i 106i        
17 B2 3283 3160        
18 B2 3256 3134        
19 B2 1578 1519        
20 B2 1466 1411        
21 B2 1318 1269        
22 B2 1167 1124        
23 B2 1072 1032        
24 B2 873 840        

Unscaled Zero Point Vibrational Energy (zpe) 17007.4 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 16369.6 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 CCSD(T)/TZVP
ABC
0.30394 0.29963 0.15088

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.125
H2 0.000 0.000 2.131
C3 0.000 1.127 0.332
C4 0.000 -1.127 0.332
C5 0.000 0.715 -0.985
C6 0.000 -0.715 -0.985
H7 0.000 2.114 0.766
H8 0.000 -2.114 0.766
H9 0.000 1.362 -1.849
H10 0.000 -1.362 -1.849

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00631.37771.37772.22692.22692.14412.14413.27003.2700
H21.00632.12292.12293.19643.19642.51632.51634.20594.2059
C31.37772.12292.25341.37932.26331.07853.26962.19283.3083
C41.37772.12292.25342.26331.37933.26961.07853.30832.1928
C52.22693.19641.37932.26331.42912.24113.32631.07942.2487
C62.22693.19642.26331.37931.42913.32632.24112.24871.0794
H72.14412.51631.07853.26962.24113.32634.22782.72054.3491
H82.14412.51633.26961.07853.32632.24114.22784.34912.7205
H93.27004.20592.19283.30831.07942.24872.72054.34912.7233
H103.27004.20593.30832.19282.24871.07944.34912.72052.7233

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.749 N1 C3 H7 121.119
N1 C4 C6 107.749 N1 C4 H8 121.119
H2 N1 C3 125.136 H2 N1 C4 125.136
C3 N1 C4 109.728 C3 C5 C6 107.387
C3 C5 H9 125.777 C4 C6 C5 107.387
C4 C6 H10 125.777 C5 C3 H7 131.132
C5 C6 H10 126.836 C6 C4 H8 131.132
C6 C5 H9 126.836
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability