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: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at G3B3
 hartrees
Energy at 0K-505.869413
Energy at 298.15K-505.861211
HF Energy-506.127071
Nuclear repulsion energy446.112788
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 B3LYP/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' 3631 3487 0.00      
2 A1' 1875 1801 0.00      
3 A1' 990 950 0.00      
4 A1' 668 641 0.00      
5 A2' 1382 1327 0.00      
6 A2' 1215 1167 0.00      
7 A2' 627 602 0.00      
8 A2" 737 708 101.20      
9 A2" 667 641 306.68      
10 A2" 126 121 0.81      
11 E' 3628 3484 143.83      
11 E' 3628 3484 143.82      
12 E' 1855 1781 877.60      
12 E' 1855 1781 877.61      
13 E' 1468 1409 301.21      
13 E' 1468 1409 301.14      
14 E' 1413 1357 86.92      
14 E' 1413 1357 86.95      
15 E' 1031 990 10.51      
15 E' 1031 990 10.52      
16 E' 517 496 26.22      
16 E' 517 496 26.22      
17 E' 389 373 23.85      
17 E' 389 373 23.85      
18 E" 743 713 0.00      
18 E" 743 713 0.00      
19 E" 596 572 0.00      
19 E" 596 572 0.00      
20 E" 151 145 0.00      
20 E" 151 145 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 17748.5 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 17043.9 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 B3LYP/6-31G*
ABC
0.06693 0.06693 0.03347

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.246 0.719 0.000
C2 -1.246 0.719 0.000
C3 0.000 -1.439 0.000
N4 0.000 1.340 0.000
N5 -1.161 -0.670 0.000
N6 1.161 -0.670 0.000
O7 2.295 1.325 0.000
O8 -2.295 1.325 0.000
O9 0.000 -2.650 0.000
H10 0.000 2.352 0.000
H11 -2.037 -1.176 0.000
H12 2.037 -1.176 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 N5 N6 O7 O8 O9 H10 H11 H12
C12.49202.49201.39202.77881.39201.21153.59263.59262.05413.79112.0541
C22.49202.49201.39201.39202.77883.59261.21153.59262.05412.05413.7911
C32.49202.49202.77881.39201.39203.59263.59261.21153.79122.05412.0541
N41.39201.39202.77882.32102.32102.29522.29523.99031.01243.23763.2376
N52.77881.39201.39202.32102.32103.99032.29522.29523.23761.01243.2376
N61.39202.77881.39202.32102.32102.29523.99032.29523.23763.23761.0124
O71.21153.59263.59262.29523.99032.29524.59034.59032.51465.00262.5146
O83.59261.21153.59262.29522.29523.99034.59034.59032.51462.51465.0026
O93.59263.59261.21153.99032.29522.29524.59034.59035.00262.51462.5146
H102.05412.05413.79121.01243.23763.23762.51462.51465.00264.07454.0745
H113.79112.05412.05413.23761.01243.23765.00262.51462.51464.07454.0745
H122.05413.79112.05413.23763.23761.01242.51465.00262.51464.07454.0745

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 127.010 C1 N4 H10 116.495
C1 N6 C3 127.010 C1 N6 H12 116.495
C2 N4 H10 116.495 C2 N5 C3 127.010
C2 N5 H11 116.495 C3 N5 H11 116.495
C3 N6 H12 116.495 N4 C1 N6 112.990
N4 C1 O7 123.505 N4 C2 N5 112.990
N4 C2 O8 123.505 N5 C2 O8 123.505
N5 C3 N6 112.990 N5 C3 O9 123.505
N6 C1 O7 123.505 N6 C3 O9 123.505
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability