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

using model chemistry: QCISD/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 QCISD/6-31G
 hartrees
Energy at 0K-504.096563
Energy at 298.15K-504.104084
HF Energy-503.125365
Nuclear repulsion energy439.368039
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 QCISD/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' 3627 3495 0.00      
2 A1' 1741 1677 0.00      
3 A1' 994 958 0.00      
4 A1' 657 633 0.00      
5 A2' 1452 1399 0.00      
6 A2' 1250 1204 0.00      
7 A2' 620 598 0.00      
8 A2" 757 730 599.58      
9 A2" 677 652 59.17      
10 A2" 154 149 3.37      
11 E' 3624 3492 133.03      
11 E' 3624 3492 133.03      
12 E' 1751 1687 841.54      
12 E' 1751 1687 841.54      
13 E' 1439 1386 330.37      
13 E' 1439 1386 330.39      
14 E' 1428 1376 63.39      
14 E' 1428 1376 63.43      
15 E' 1028 991 15.57      
15 E' 1028 991 15.57      
16 E' 522 503 26.27      
16 E' 522 503 26.27      
17 E' 382 368 26.69      
17 E' 382 368 26.69      
18 E" 725 699 0.00      
18 E" 725 699 0.00      
19 E" 651 627 0.00      
19 E" 651 627 0.00      
20 E" 161 155 0.00      
20 E" 161 155 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 17673.8 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 17030.4 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 QCISD/6-31G
ABC
0.06490 0.06490 0.03245

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.256 0.725 0.000
C2 -1.256 0.725 0.000
C3 0.000 -1.451 0.000
N4 0.000 1.356 0.000
N5 -1.174 -0.678 0.000
N6 1.174 -0.678 0.000
O7 2.337 1.349 0.000
O8 -2.337 1.349 0.000
O9 0.000 -2.699 0.000
H10 0.000 2.370 0.000
H11 -2.053 -1.185 0.000
H12 2.053 -1.185 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 N5 N6 O7 O8 O9 H10 H11 H12
C12.51252.51251.40562.80641.40561.24833.64743.64742.06993.82102.0699
C22.51252.51251.40561.40562.80643.64741.24833.64742.06992.06993.8210
C32.51252.51252.80641.40561.40563.64743.64741.24833.82102.06992.0699
N41.40561.40562.80642.34822.34822.33732.33734.05471.01463.26663.2666
N52.80641.40561.40562.34822.34834.05472.33732.33733.26661.01463.2666
N61.40562.80641.40562.34822.34832.33734.05472.33733.26663.26661.0146
O71.24833.64743.64742.33734.05472.33734.67474.67472.55065.06932.5506
O83.64741.24833.64742.33732.33734.05474.67474.67472.55062.55065.0693
O93.64743.64741.24834.05472.33732.33734.67474.67475.06932.55062.5506
H102.06992.06993.82101.01463.26663.26662.55062.55065.06934.10564.1056
H113.82102.06992.06993.26661.01463.26665.06932.55062.55064.10564.1056
H122.06993.82102.06993.26663.26661.01462.55065.06932.55064.10564.1056

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 126.699 C1 N4 H10 116.650
C1 N6 C3 126.699 C1 N6 H12 116.650
C2 N4 H10 116.650 C2 N5 C3 126.699
C2 N5 H11 116.650 C3 N5 H11 116.650
C3 N6 H12 116.650 N4 C1 N6 113.301
N4 C1 O7 123.350 N4 C2 N5 113.301
N4 C2 O8 123.350 N5 C2 O8 123.350
N5 C3 N6 113.301 N5 C3 O9 123.350
N6 C1 O7 123.350 N6 C3 O9 123.350
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability