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All results from a given calculation for C5H5N (Pyridine)

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-248.170697
Energy at 298.15K-248.176807
Nuclear repulsion energy206.783967
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 B1B95/6-31G*
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 3248 3083 6.28      
2 A1 3223 3059 7.84      
3 A1 3201 3039 10.26      
4 A1 1672 1588 23.33      
5 A1 1541 1463 3.91      
6 A1 1263 1199 2.93      
7 A1 1110 1053 4.68      
8 A1 1062 1008 1.70      
9 A1 1017 966 8.62      
10 A1 605 574 4.11      
11 A2 1005 954 0.00      
12 A2 905 859 0.00      
13 A2 383 364 0.00      
14 B1 1020 968 0.00      
15 B1 965 916 0.02      
16 B1 767 728 8.54      
17 B1 721 685 49.87      
18 B1 418 397 3.35      
19 B2 3240 3076 27.44      
20 B2 3199 3036 32.44      
21 B2 1671 1587 10.55      
22 B2 1498 1422 26.74      
23 B2 1398 1327 0.00      
24 B2 1343 1275 0.01      
25 B2 1183 1123 1.69      
26 B2 1098 1042 0.11      
27 B2 667 633 0.42      

Unscaled Zero Point Vibrational Energy (zpe) 19710.6 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 18711.3 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 B1B95/6-31G*
ABC
0.20335 0.19529 0.09962

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.414
C2 0.000 0.000 -1.380
C3 0.000 1.135 0.719
C4 0.000 -1.135 0.719
C5 0.000 1.193 -0.670
C6 0.000 -1.193 -0.670
H7 0.000 0.000 -2.464
H8 0.000 2.051 1.305
H9 0.000 -2.051 1.305
H10 0.000 2.151 -1.178
H11 0.000 -2.151 -1.178

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11
N12.79371.33101.33102.40142.40143.87842.05422.05423.36813.3681
C22.79372.38622.38621.38821.38821.08483.37833.37832.16002.1600
C31.33102.38622.27051.39052.71143.38001.08713.23982.15193.7943
C41.33102.38622.27052.71141.39053.38003.23981.08713.79432.1519
C52.40141.38821.39052.71142.38622.15482.15313.79811.08393.3820
C62.40141.38822.71141.39052.38622.15483.79812.15313.38201.0839
H73.87841.08483.38003.38002.15482.15484.29114.29112.50592.5059
H82.05423.37831.08713.23982.15313.79814.29114.10252.48484.8805
H92.05423.37833.23981.08713.79812.15314.29114.10254.88052.4848
H103.36812.16002.15193.79431.08393.38202.50592.48484.88054.3011
H113.36812.16003.79432.15193.38201.08392.50594.88052.48484.3011

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 123.850 N1 C3 H8 115.949
N1 C4 C6 123.850 N1 C4 H9 115.949
C2 C5 C3 118.357 C2 C5 H10 121.305
C2 C6 C4 118.357 C2 C6 H11 121.305
C3 N1 C4 117.067 C3 C5 H10 120.337
C4 C6 H11 120.337 C5 C2 C6 118.517
C5 C2 H7 120.741 C5 C3 H8 120.200
C6 C2 H7 120.741 C6 C4 H9 120.200
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.414      
2 C -0.128      
3 C 0.023      
4 C 0.023      
5 C -0.171      
6 C -0.171      
7 H 0.171      
8 H 0.166      
9 H 0.166      
10 H 0.167      
11 H 0.167      


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 -2.196 2.196
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.866 0.000 0.000
y 0.000 -28.709 0.000
z 0.000 0.000 -35.347
Traceless
 xyz
x -4.838 0.000 0.000
y 0.000 7.397 0.000
z 0.000 0.000 -2.559
Polar
3z2-r2-5.119
x2-y2-8.157
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.081 0.000 0.000
y 0.000 10.012 0.000
z 0.000 0.000 9.136


<r2> (average value of r2) Å2
<r2> 120.489
(<r2>)1/2 10.977