return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-506.009356
Energy at 298.15K-506.016820
HF Energy-506.009356
Nuclear repulsion energy448.137467
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 mPW1PW91/6-31G*
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' 3676 3486 0.00      
2 A1' 1912 1813 0.00      
3 A1' 1003 951 0.00      
4 A1' 682 646 0.00      
5 A2' 1395 1323 0.00      
6 A2' 1258 1193 0.00      
7 A2' 632 599 0.00      
8 A2" 754 715 127.27      
9 A2" 675 640 303.21      
10 A2" 131 124 0.91      
11 E' 3673 3483 162.13      
11 E' 3673 3483 162.11      
12 E' 1892 1794 925.29      
12 E' 1892 1794 925.22      
13 E' 1502 1424 341.99      
13 E' 1502 1424 342.00      
14 E' 1428 1355 55.47      
14 E' 1428 1355 55.49      
15 E' 1050 996 8.78      
15 E' 1050 996 8.78      
16 E' 522 495 24.32      
16 E' 522 495 24.32      
17 E' 393 373 25.71      
17 E' 393 373 25.71      
18 E" 756 717 0.00      
18 E" 756 717 0.00      
19 E" 605 574 0.00      
19 E" 605 574 0.00      
20 E" 154 146 0.00      
20 E" 154 146 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18034.0 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 17101.6 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 mPW1PW91/6-31G*
ABC
0.06756 0.06756 0.03378

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.239 0.716 0.000
C2 -1.239 0.716 0.000
C3 0.000 -1.431 0.000
N4 0.000 1.333 0.000
N5 -1.155 -0.667 0.000
N6 1.155 -0.667 0.000
O7 2.285 1.319 0.000
O8 -2.285 1.319 0.000
O9 0.000 -2.638 0.000
H10 0.000 2.343 0.000
H11 -2.029 -1.172 0.000
H12 2.029 -1.172 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 N5 N6 O7 O8 O9 H10 H11 H12
C12.47892.47891.38492.76461.38491.20723.57573.57572.04603.77462.0460
C22.47892.47891.38491.38492.76463.57571.20723.57572.04602.04603.7746
C32.47892.47892.76461.38491.38493.57573.57571.20723.77462.04602.0460
N41.38491.38492.76462.30952.30952.28502.28503.97181.01003.22403.2240
N52.76461.38491.38492.30952.30953.97182.28502.28503.22401.01003.2240
N61.38492.76461.38492.30952.30952.28503.97182.28503.22403.22401.0100
O71.20723.57573.57572.28503.97182.28504.56984.56982.50404.98182.5040
O83.57571.20723.57572.28502.28503.97184.56984.56982.50402.50404.9818
O93.57573.57571.20723.97182.28502.28504.56984.56984.98182.50402.5040
H102.04602.04603.77461.01003.22403.22402.50402.50404.98184.05894.0589
H113.77462.04602.04603.22401.01003.22404.98182.50402.50404.05894.0589
H122.04603.77462.04603.22403.22401.01002.50404.98182.50404.05894.0589

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 127.011 C1 N4 H10 116.494
C1 N6 C3 127.011 C1 N6 H12 116.494
C2 N4 H10 116.494 C2 N5 C3 127.011
C2 N5 H11 116.494 C3 N5 H11 116.494
C3 N6 H12 116.494 N4 C1 N6 112.989
N4 C1 O7 123.506 N4 C2 N5 112.989
N4 C2 O8 123.506 N5 C2 O8 123.506
N5 C3 N6 112.989 N5 C3 O9 123.506
N6 C1 O7 123.506 N6 C3 O9 123.506
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability