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All results from a given calculation for C5H5N (Pyridine)

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-248.279672
Energy at 298.15K-248.285833
Nuclear repulsion energy206.859397
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 mPW1PW91/6-311G**
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 3224 3085 6.00      
2 A1 3200 3061 5.57      
3 A1 3175 3038 6.62      
4 A1 1656 1584 25.47      
5 A1 1524 1458 4.20      
6 A1 1251 1197 3.86      
7 A1 1104 1056 6.12      
8 A1 1057 1011 4.01      
9 A1 1020 976 8.03      
10 A1 614 587 4.17      
11 A2 1015 971 0.00      
12 A2 906 867 0.00      
13 A2 383 367 0.00      
14 B1 1025 981 0.00      
15 B1 968 926 0.02      
16 B1 771 737 8.88      
17 B1 724 692 68.27      
18 B1 420 401 3.51      
19 B2 3216 3077 23.76      
20 B2 3173 3035 29.02      
21 B2 1650 1579 10.51      
22 B2 1483 1419 28.71      
23 B2 1385 1325 0.03      
24 B2 1319 1262 0.00      
25 B2 1174 1123 2.25      
26 B2 1088 1041 0.00      
27 B2 670 641 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 19597.5 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 18748.9 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 mPW1PW91/6-311G**
ABC
0.20337 0.19555 0.09969

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.413
C2 0.000 0.000 -1.379
C3 0.000 1.136 0.719
C4 0.000 -1.136 0.719
C5 0.000 1.193 -0.670
C6 0.000 -1.193 -0.670
H7 0.000 0.000 -2.463
H8 0.000 2.051 1.304
H9 0.000 -2.051 1.304
H10 0.000 2.149 -1.178
H11 0.000 -2.149 -1.178

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11
N12.79151.33091.33092.39962.39963.87542.05372.05373.36583.3658
C22.79152.38562.38561.38761.38761.08393.37733.37732.15872.1587
C31.33092.38562.27171.38982.71113.37841.08633.24012.15033.7933
C41.33092.38562.27172.71111.38983.37843.24011.08633.79332.1503
C52.39961.38761.38982.71112.38532.15352.15253.79701.08313.3803
C62.39961.38762.71111.38982.38532.15353.79702.15253.38031.0831
H73.87541.08393.37843.37842.15352.15354.28934.28932.50422.5042
H82.05373.37731.08633.24012.15253.79704.28934.10182.48404.8787
H92.05373.37733.24011.08633.79702.15254.28934.10184.87872.4840
H103.36582.15872.15033.79331.08313.38032.50422.48404.87874.2985
H113.36582.15873.79332.15033.38031.08312.50424.87872.48404.2985

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 123.755 N1 C3 H8 115.977
N1 C4 C6 123.755 N1 C4 H9 115.977
C2 C5 C3 118.397 C2 C5 H10 121.291
C2 C6 C4 118.397 C2 C6 H11 121.291
C3 N1 C4 117.177 C3 C5 H10 120.312
C4 C6 H11 120.312 C5 C2 C6 118.520
C5 C2 H7 120.740 C5 C3 H8 120.268
C6 C2 H7 120.740 C6 C4 H9 120.268
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.328      
2 C 0.001      
3 C 0.082      
4 C 0.082      
5 C -0.210      
6 C -0.210      
7 H 0.115      
8 H 0.123      
9 H 0.123      
10 H 0.111      
11 H 0.111      


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 -2.201 2.201
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.557 0.000 0.000
y 0.000 -28.958 0.000
z 0.000 0.000 -35.787
Traceless
 xyz
x -5.184 0.000 0.000
y 0.000 7.714 0.000
z 0.000 0.000 -2.530
Polar
3z2-r2-5.059
x2-y2-8.599
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.997 0.000 0.000
y 0.000 10.427 0.000
z 0.000 0.000 9.549


<r2> (average value of r2) Å2
<r2> 120.703
(<r2>)1/2 10.986