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All results from a given calculation for C5H5N (Pyridine)

using model chemistry: B3LYP/CEP-31G*

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/CEP-31G*
 hartrees
Energy at 0K-41.138407
Energy at 298.15K-41.144467
Nuclear repulsion energy103.049632
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/CEP-31G*
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 3196 3086 7.91      
2 A1 3165 3057 15.63      
3 A1 3154 3046 3.59      
4 A1 1632 1576 25.48      
5 A1 1499 1448 3.24      
6 A1 1232 1190 4.58      
7 A1 1081 1044 8.68      
8 A1 1033 997 2.04      
9 A1 994 960 5.76      
10 A1 596 576 2.69      
11 A2 1013 979 0.00      
12 A2 913 882 0.00      
13 A2 384 371 0.00      
14 B1 1033 998 0.04      
15 B1 972 938 0.04      
16 B1 763 737 60.92      
17 B1 724 700 52.09      
18 B1 410 396 3.24      
19 B2 3188 3078 36.72      
20 B2 3147 3039 38.28      
21 B2 1624 1568 9.53      
22 B2 1459 1408 29.30      
23 B2 1363 1316 0.01      
24 B2 1315 1270 0.06      
25 B2 1148 1109 1.87      
26 B2 1068 1031 0.15      
27 B2 645 623 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 19374.6 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 18710.0 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/CEP-31G*
ABC
0.19696 0.18780 0.09614

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.450
C2 0.000 0.000 -1.400
C3 0.000 1.151 0.743
C4 0.000 -1.151 0.743
C5 0.000 1.216 -0.675
C6 0.000 -1.216 -0.675
H7 0.000 0.000 -2.495
H8 0.000 2.076 1.334
H9 0.000 -2.076 1.334
H10 0.000 2.185 -1.183
H11 0.000 -2.185 -1.183

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11
N12.85051.35041.35042.44882.44883.94562.07962.07963.42153.4215
C22.85052.43302.43301.41591.41591.09513.43373.43372.19572.1957
C31.35042.43302.30131.42022.75953.43721.09833.28072.18643.8518
C41.35042.43302.30132.75951.42023.43723.28071.09833.85182.1864
C52.44881.41591.42022.75952.43242.18912.18613.85741.09373.4388
C62.44881.41592.75951.42022.43242.18913.85742.18613.43881.0937
H73.94561.09513.43723.43722.18912.18914.35654.35652.54882.5488
H82.07963.43371.09833.28072.18613.85744.35654.15272.51984.9493
H92.07963.43373.28071.09833.85742.18614.35654.15274.94932.5198
H103.42152.19572.18643.85181.09373.43882.54882.51984.94934.3698
H113.42152.19573.85182.18643.43881.09372.54884.94932.51984.3698

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 124.202 N1 C3 H8 115.884
N1 C4 C6 124.202 N1 C4 H9 115.884
C2 C5 C3 118.157 C2 C5 H10 121.539
C2 C6 C4 118.157 C2 C6 H11 121.539
C3 N1 C4 116.885 C3 C5 H10 120.304
C4 C6 H11 120.304 C5 C2 C6 118.396
C5 C2 H7 120.802 C5 C3 H8 119.914
C6 C2 H7 120.802 C6 C4 H9 119.914
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.355      
2 C -0.540      
3 C -0.630      
4 C -0.630      
5 C 0.019      
6 C 0.019      
7 H 0.298      
8 H 0.241      
9 H 0.241      
10 H 0.313      
11 H 0.313      


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 -2.368 2.368
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.801 0.000 0.000
y 0.000 -28.163 0.000
z 0.000 0.000 -35.715
Traceless
 xyz
x -5.862 0.000 0.000
y 0.000 8.595 0.000
z 0.000 0.000 -2.733
Polar
3z2-r2-5.466
x2-y2-9.639
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.011 0.000 0.000
y 0.000 10.237 0.000
z 0.000 0.000 9.682


<r2> (average value of r2) Å2
<r2> 100.778
(<r2>)1/2 10.039