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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-208.961488
Energy at 298.15K-208.967764
HF Energy-208.961488
Nuclear repulsion energy160.435117
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 mPW1PW91/3-21G
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 3657 3491 72.59      
2 A1 3331 3180 0.02      
3 A1 3305 3155 2.18      
4 A1 1501 1433 3.77      
5 A1 1425 1361 7.36      
6 A1 1180 1126 1.36      
7 A1 1119 1068 7.14      
8 A1 1048 1000 30.95      
9 A1 936 893 0.54      
10 A2 930 888 0.00      
11 A2 740 707 0.00      
12 A2 648 619 0.00      
13 B1 890 850 2.34      
14 B1 763 728 144.13      
15 B1 657 627 1.25      
16 B1 620 592 148.38      
17 B2 3321 3170 2.16      
18 B2 3294 3144 2.05      
19 B2 1590 1518 11.76      
20 B2 1457 1391 8.74      
21 B2 1340 1279 0.11      
22 B2 1190 1136 2.08      
23 B2 1082 1033 29.56      
24 B2 919 877 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 18470.3 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 17631.8 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 mPW1PW91/3-21G
ABC
0.30296 0.29955 0.15062

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.127
H2 0.000 0.000 2.136
C3 0.000 1.130 0.331
C4 0.000 -1.130 0.331
C5 0.000 0.714 -0.984
C6 0.000 -0.714 -0.984
H7 0.000 2.120 0.752
H8 0.000 -2.120 0.752
H9 0.000 1.355 -1.849
H10 0.000 -1.355 -1.849

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00891.38231.38232.22862.22862.15282.15283.27053.2705
H21.00892.12972.12973.20063.20062.53182.53184.20964.2096
C31.38232.12972.25971.37862.26481.07583.27692.19193.3056
C41.38232.12972.25972.26481.37863.27691.07583.30562.1919
C52.22863.20061.37862.26481.42872.23333.32341.07692.2429
C62.22863.20062.26481.37861.42873.32342.23332.24291.0769
H72.15282.53181.07583.27692.23333.32344.23972.71154.3405
H82.15282.53183.27691.07583.32342.23334.23974.34052.7115
H93.27054.20962.19193.30561.07692.24292.71154.34052.7095
H103.27054.20963.30562.19192.24291.07694.34052.71152.7095

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.640 N1 C3 H7 121.782
N1 C4 C6 107.640 N1 C4 H8 121.782
H2 N1 C3 125.180 H2 N1 C4 125.180
C3 N1 C4 109.641 C3 C5 C6 107.540
C3 C5 H9 125.970 C4 C6 C5 107.540
C4 C6 H10 125.970 C5 C3 H7 130.578
C5 C6 H10 126.490 C6 C4 H8 130.578
C6 C5 H9 126.490
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.733      
2 H 0.343      
3 C 0.046      
4 C 0.046      
5 C -0.288      
6 C -0.288      
7 H 0.231      
8 H 0.231      
9 H 0.205      
10 H 0.205      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.010 2.010
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.970 0.000 0.000
y 0.000 -25.792 0.000
z 0.000 0.000 -22.746
Traceless
 xyz
x -9.701 0.000 0.000
y 0.000 2.567 0.000
z 0.000 0.000 7.135
Polar
3z2-r214.269
x2-y2-8.178
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.875 0.000 0.000
y 0.000 7.233 0.000
z 0.000 0.000 7.144


<r2> (average value of r2) Å2
<r2> 85.633
(<r2>)1/2 9.254