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All results from a given calculation for C5H5N (Pyridine)

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-246.913290
Energy at 298.15K-246.919522
Nuclear repulsion energy205.322793
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 B3LYP/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 3225 3112 2.89      
2 A1 3198 3086 7.91      
3 A1 3183 3071 11.21      
4 A1 1602 1545 17.88      
5 A1 1523 1470 7.91      
6 A1 1263 1219 1.32      
7 A1 1117 1077 0.00      
8 A1 1063 1025 9.18      
9 A1 997 962 3.59      
10 A1 639 616 4.31      
11 A2 1044 1007 0.00      
12 A2 927 895 0.00      
13 A2 396 382 0.00      
14 B1 1064 1027 0.00      
15 B1 989 954 0.08      
16 B1 793 765 3.71      
17 B1 743 717 76.71      
18 B1 436 420 3.61      
19 B2 3216 3103 24.16      
20 B2 3179 3067 22.29      
21 B2 1599 1542 2.98      
22 B2 1488 1436 29.12      
23 B2 1424 1374 1.31      
24 B2 1245 1201 1.77      
25 B2 1216 1174 0.61      
26 B2 1081 1043 0.44      
27 B2 693 668 0.55      

Unscaled Zero Point Vibrational Energy (zpe) 19670.4 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 18980.0 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 B3LYP/3-21G
ABC
0.19905 0.19374 0.09818

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.422
C2 0.000 0.000 -1.384
C3 0.000 1.154 0.722
C4 0.000 -1.154 0.722
C5 0.000 1.202 -0.673
C6 0.000 -1.202 -0.673
H7 0.000 0.000 -2.468
H8 0.000 2.072 1.301
H9 0.000 -2.072 1.301
H10 0.000 2.156 -1.187
H11 0.000 -2.156 -1.187

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11
N12.80601.35021.35022.41592.41593.89002.07532.07533.38483.3848
C22.80602.40122.40121.39651.39651.08413.39133.39132.16472.1647
C31.35022.40122.30861.39592.73863.39201.08513.27772.15583.8212
C41.35022.40122.30862.73861.39593.39203.27771.08513.82122.1558
C52.41591.39651.39592.73862.40462.16012.15743.82341.08323.3972
C62.41591.39652.73861.39592.40462.16013.82342.15743.39721.0832
H73.89001.08413.39203.39202.16012.16014.30094.30092.50742.5074
H82.07533.39131.08513.27772.15743.82344.30094.14352.48994.9056
H92.07533.39133.27771.08513.82342.15744.30094.14354.90562.4899
H103.38482.16472.15583.82121.08323.39722.50742.48994.90564.3115
H113.38482.16473.82122.15583.39721.08322.50744.90562.48994.3115

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 123.221 N1 C3 H8 116.473
N1 C4 C6 123.221 N1 C4 H9 116.473
C2 C5 C3 118.609 C2 C5 H10 121.090
C2 C6 C4 118.609 C2 C6 H11 121.090
C3 N1 C4 117.499 C3 C5 H10 120.301
C4 C6 H11 120.301 C5 C2 C6 118.842
C5 C2 H7 120.579 C5 C3 H8 120.305
C6 C2 H7 120.579 C6 C4 H9 120.305
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.527     -0.635
2 C -0.148     0.223
3 C 0.068     0.467
4 C 0.068     0.467
5 C -0.235     -0.520
6 C -0.235     -0.520
7 H 0.202     0.087
8 H 0.211     0.019
9 H 0.211     0.019
10 H 0.194     0.196
11 H 0.194     0.196


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 -2.251 2.251
CHELPG        
AIM        
ESP 0.000 0.000 -2.247 2.247


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.910 0.000 0.000
y 0.000 -28.914 0.000
z 0.000 0.000 -35.973
Traceless
 xyz
x -5.467 0.000 0.000
y 0.000 8.028 0.000
z 0.000 0.000 -2.561
Polar
3z2-r2-5.123
x2-y2-8.997
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.295 0.000 0.000
y 0.000 9.660 0.000
z 0.000 0.000 8.565


<r2> (average value of r2) Å2
<r2> 122.251
(<r2>)1/2 11.057