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All results from a given calculation for C3H3N3O3 (cyanuric acid)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-501.495319
Energy at 298.15K-501.502894
HF Energy-500.557131
Nuclear repulsion energy439.901250
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 MP2/3-21G*
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' 3584 3410 0.00      
2 A1' 1779 1692 0.00      
3 A1' 990 942 0.00      
4 A1' 641 610 0.00      
5 A2' 1439 1369 0.00      
6 A2' 1158 1102 0.00      
7 A2' 627 597 0.00      
8 A2" 826 786 406.15      
9 A2" 708 674 191.33      
10 A2" 156 149 0.75      
11 E' 3582 3408 127.37      
11 E' 3582 3408 127.37      
12 E' 1784 1697 627.81      
12 E' 1784 1697 627.81      
13 E' 1436 1366 0.01      
13 E' 1436 1366 0.01      
14 E' 1393 1325 428.78      
14 E' 1393 1325 428.78      
15 E' 1012 963 16.73      
15 E' 1012 963 16.73      
16 E' 510 485 22.97      
16 E' 510 485 22.97      
17 E' 387 369 20.86      
17 E' 387 369 20.86      
18 E" 776 738 0.00      
18 E" 776 738 0.00      
19 E" 672 639 0.00      
19 E" 672 639 0.00      
20 E" 155 147 0.00      
20 E" 155 147 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 17661.3 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 16801.2 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 MP2/3-21G*
ABC
0.06499 0.06499 0.03249

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.262 0.728 0.000
C2 -1.262 0.728 0.000
C3 0.000 -1.457 0.000
N4 0.000 1.350 0.000
N5 -1.169 -0.675 0.000
N6 1.169 -0.675 0.000
O7 2.335 1.348 0.000
O8 -2.335 1.348 0.000
O9 0.000 -2.696 0.000
H10 0.000 2.366 0.000
H11 -2.049 -1.183 0.000
H12 2.049 -1.183 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 N5 N6 O7 O8 O9 H10 H11 H12
C12.52362.52361.40662.80721.40661.23943.64993.64992.06763.82342.0676
C22.52362.52361.40661.40662.80723.64991.23943.64992.06762.06763.8234
C32.52362.52362.80721.40661.40663.64993.64991.23943.82342.06762.0676
N41.40661.40662.80722.33862.33862.33512.33514.04651.01623.25853.2585
N52.80721.40661.40662.33862.33864.04652.33512.33513.25851.01623.2585
N61.40662.80721.40662.33862.33862.33514.04652.33513.25853.25851.0162
O71.23943.64993.64992.33514.04652.33514.67024.67022.54755.06282.5475
O83.64991.23943.64992.33512.33514.04654.67024.67022.54752.54755.0628
O93.64993.64991.23944.04652.33512.33514.67024.67025.06282.54752.5475
H102.06762.06763.82341.01623.25853.25852.54752.54755.06284.09874.0987
H113.82342.06762.06763.25851.01623.25855.06282.54752.54754.09874.0987
H122.06763.82342.06763.25853.25851.01622.54755.06282.54754.09874.0987

picture of cyanuric acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N4 C2 127.541 C1 N4 H10 116.230
C1 N6 C3 127.541 C1 N6 H12 116.230
C2 N4 H10 116.230 C2 N5 C3 127.541
C2 N5 H11 116.230 C3 N5 H11 116.229
C3 N6 H12 116.229 N4 C1 N6 112.459
N4 C1 O7 123.770 N4 C2 N5 112.459
N4 C2 O8 123.770 N5 C2 O8 123.770
N5 C3 N6 112.459 N5 C3 O9 123.770
N6 C1 O7 123.770 N6 C3 O9 123.770
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability