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All results from a given calculation for C5H5N (Pyridine)

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-247.137161
Energy at 298.15K-247.143077
HF Energy-246.608164
Nuclear repulsion energy201.345601
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 MP2/SDD
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 3222 3110 4.61      
2 A1 3196 3085 21.90      
3 A1 3175 3064 0.03      
4 A1 1572 1518 10.17      
5 A1 1479 1428 6.76      
6 A1 1232 1190 0.77      
7 A1 1077 1039 0.95      
8 A1 1027 992 10.20      
9 A1 946 914 2.65      
10 A1 607 586 2.94      
11 A2 885 855 0.00      
12 A2 836 807 0.00      
13 A2 370 357 0.00      
14 B1 899 868 0.10      
15 B1 864 834 0.60      
16 B1 726 700 11.32      
17 B1 696 672 99.31      
18 B1 402 388 4.26      
19 B2 3210 3099 60.39      
20 B2 3185 3075 1.23      
21 B2 1567 1512 1.10      
22 B2 1448 1397 24.35      
23 B2 1382 1334 1.34      
24 B2 1271 1227 0.00      
25 B2 1188 1146 0.97      
26 B2 1050 1014 0.02      
27 B2 656 633 0.90      

Unscaled Zero Point Vibrational Energy (zpe) 19083.2 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 18421.0 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 MP2/SDD
ABC
0.19172 0.18558 0.09430

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.455
C2 0.000 0.000 -1.416
C3 0.000 1.180 0.735
C4 0.000 -1.180 0.735
C5 0.000 1.225 -0.688
C6 0.000 -1.225 -0.688
H7 0.000 0.000 -2.509
H8 0.000 2.095 1.332
H9 0.000 -2.095 1.332
H10 0.000 2.189 -1.205
H11 0.000 -2.189 -1.205

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11
N12.87101.38201.38202.46912.46913.96482.09902.09903.44483.4448
C22.87102.45312.45311.42471.42471.09383.45543.45542.19922.1992
C31.38202.45312.35911.42442.79453.45251.09313.32892.18673.8872
C41.38202.45312.35912.79451.42443.45253.32891.09313.88722.1867
C52.46911.42471.42442.79452.45032.19482.19983.88691.09343.4530
C62.46911.42472.79451.42442.45032.19483.88692.19983.45301.0934
H73.96481.09383.45253.45252.19482.19484.37584.37582.54852.5485
H82.09903.45541.09313.32892.19983.88694.37584.19072.53824.9790
H92.09903.45543.32891.09313.88692.19984.37584.19074.97902.5382
H103.44482.19922.18673.88721.09343.45302.54852.53824.97904.3782
H113.44482.19923.88722.18673.45301.09342.54854.97902.53824.3782

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 123.237 N1 C3 H8 115.507
N1 C4 C6 123.237 N1 C4 H9 115.507
C2 C5 C3 118.858 C2 C5 H10 121.144
C2 C6 C4 118.858 C2 C6 H11 121.144
C3 N1 C4 117.195 C3 C5 H10 119.998
C4 C6 H11 119.998 C5 C2 C6 118.615
C5 C2 H7 120.693 C5 C3 H8 121.256
C6 C2 H7 120.693 C6 C4 H9 121.256
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability