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All results from a given calculation for C5H5N (Pyridine)

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-247.618071
Energy at 298.15K 
HF Energy-246.767534
Nuclear repulsion energy206.196749
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/TZVP
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 3251 3081 4.01      
2 A1 3226 3058 5.84      
3 A1 3211 3044 3.29      
4 A1 1633 1548 13.81      
5 A1 1519 1440 3.11      
6 A1 1255 1190 2.03      
7 A1 1098 1041 5.33      
8 A1 1048 993 4.21      
9 A1 1011 959 5.19      
10 A1 609 577 3.15      
11 A2 819 777 0.00      
12 A2 650 617 0.00      
13 A2 196 186 0.00      
14 B1 827 784 1.03      
15 B1 796 754 0.20      
16 B1 683 647 74.96      
17 B1 420 398 5.33      
18 B1 612i 580i 0.00      
19 B2 3244 3075 19.64      
20 B2 3209 3042 22.05      
21 B2 1624 1540 2.94      
22 B2 1481 1403 22.94      
23 B2 1398 1325 0.04      
24 B2 1376 1304 0.64      
25 B2 1184 1123 1.35      
26 B2 1085 1028 0.12      
27 B2 664 630 0.47      

Unscaled Zero Point Vibrational Energy (zpe) 18452.1 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 17490.8 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/TZVP
ABC
0.20235 0.19393 0.09903

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.417
C2 0.000 0.000 -1.386
C3 0.000 1.140 0.724
C4 0.000 -1.140 0.724
C5 0.000 1.194 -0.672
C6 0.000 -1.194 -0.672
H7 0.000 0.000 -2.465
H8 0.000 2.051 1.302
H9 0.000 -2.051 1.302
H10 0.000 2.144 -1.184
H11 0.000 -2.144 -1.184

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11
N12.80331.33451.33452.40582.40583.88172.05432.05433.37073.3707
C22.80332.39822.39821.39101.39101.07853.38123.38122.15302.1530
C31.33452.39822.28031.39642.71903.38601.07893.24322.15573.7977
C41.33452.39822.28032.71901.39643.38603.24321.07893.79772.1557
C52.40581.39101.39642.71902.38702.15382.15193.79771.07943.3761
C62.40581.39102.71901.39642.38702.15383.79772.15193.37611.0794
H73.88171.07853.38603.38602.15382.15384.28884.28882.49682.4968
H82.05433.38121.07893.24322.15193.79774.28884.10212.48794.8760
H92.05433.38123.24321.07893.79772.15194.28884.10214.87602.4879
H103.37072.15302.15573.79771.07943.37612.49682.48794.87604.2870
H113.37072.15303.79772.15573.37611.07942.49684.87602.48794.2870

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 123.497 N1 C3 H8 116.282
N1 C4 C6 123.497 N1 C4 H9 116.282
C2 C5 C3 118.714 C2 C5 H10 120.751
C2 C6 C4 118.714 C2 C6 H11 120.751
C3 N1 C4 117.384 C3 C5 H10 120.536
C4 C6 H11 120.536 C5 C2 C6 118.194
C5 C2 H7 120.903 C5 C3 H8 120.221
C6 C2 H7 120.903 C6 C4 H9 120.221
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability