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: HSEh1PBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at HSEh1PBE/6-31G(2df,p)
 hartrees
Energy at 0K-505.681708
Energy at 298.15K-505.689235
HF Energy-505.681708
Nuclear repulsion energy449.408656
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 HSEh1PBE/6-31G(2df,p)
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' 3680 3525 0.00      
2 A1' 1900 1820 0.00      
3 A1' 1001 958 0.00      
4 A1' 680 651 0.00      
5 A2' 1366 1308 0.00      
6 A2' 1256 1203 0.00      
7 A2' 629 603 0.00      
8 A2" 782 749 92.54      
9 A2" 674 646 239.66      
10 A2" 132 127 2.21      
11 E' 3678 3522 158.54      
11 E' 3678 3522 158.51      
12 E' 1879 1799 879.90      
12 E' 1879 1799 879.88      
13 E' 1491 1428 342.67      
13 E' 1491 1428 342.68      
14 E' 1407 1348 29.72      
14 E' 1407 1348 29.72      
15 E' 1041 997 7.17      
15 E' 1041 997 7.16      
16 E' 518 496 24.56      
16 E' 518 496 24.56      
17 E' 394 377 25.81      
17 E' 394 377 25.82      
18 E" 775 742 0.00      
18 E" 775 742 0.00      
19 E" 608 582 0.00      
19 E" 608 582 0.00      
20 E" 155 149 0.00      
20 E" 155 149 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 17994.9 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 17233.7 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 HSEh1PBE/6-31G(2df,p)
ABC
0.06795 0.06795 0.03397

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G(2df,p)

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.237 0.714 0.000
C2 -1.237 0.714 0.000
C3 0.000 -1.428 0.000
N4 0.000 1.331 0.000
N5 -1.152 -0.665 0.000
N6 1.152 -0.665 0.000
O7 2.278 1.315 0.000
O8 -2.278 1.315 0.000
O9 0.000 -2.630 0.000
H10 0.000 2.339 0.000
H11 -2.025 -1.169 0.000
H12 2.025 -1.169 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 N5 N6 O7 O8 O9 H10 H11 H12
C12.47332.47331.38192.75851.38191.20203.56533.56532.04173.76652.0417
C22.47332.47331.38191.38192.75853.56531.20203.56532.04172.04173.7665
C32.47332.47332.75851.38191.38193.56533.56531.20203.76652.04172.0417
N41.38191.38192.75852.30462.30462.27762.27763.96051.00803.21733.2173
N52.75851.38191.38192.30462.30463.96052.27762.27763.21731.00803.2173
N61.38192.75851.38192.30462.30462.27763.96052.27763.21733.21731.0080
O71.20203.56533.56532.27763.96052.27764.55524.55522.49704.96852.4970
O83.56531.20203.56532.27762.27763.96054.55524.55522.49702.49704.9685
O93.56533.56531.20203.96052.27762.27764.55524.55524.96852.49702.4970
H102.04172.04173.76651.00803.21733.21732.49702.49704.96854.05054.0505
H113.76652.04172.04173.21731.00803.21734.96852.49702.49704.05054.0505
H122.04173.76652.04173.21733.21731.00802.49704.96852.49704.05054.0505

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 126.999 C1 N4 H10 116.500
C1 N6 C3 126.999 C1 N6 H12 116.500
C2 N4 H10 116.500 C2 N5 C3 126.999
C2 N5 H11 116.500 C3 N5 H11 116.500
C3 N6 H12 116.500 N4 C1 N6 113.001
N4 C1 O7 123.500 N4 C2 N5 113.001
N4 C2 O8 123.500 N5 C2 O8 123.500
N5 C3 N6 113.001 N5 C3 O9 123.500
N6 C1 O7 123.500 N6 C3 O9 123.500
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability