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

using model chemistry: CISD/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 CISD/3-21G
 hartrees
Energy at 0K-501.321397
Energy at 298.15K-501.329406
HF Energy-500.567401
Nuclear repulsion energy445.970669
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 CISD/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' 3711 3493 0.00      
2 A1' 1910 1798 0.00      
3 A1' 1037 976 0.00      
4 A1' 690 649 0.00      
5 A2' 1504 1416 0.00      
6 A2' 1272 1197 0.00      
7 A2' 665 626 0.00      
8 A2" 932 877 552.34      
9 A2" 736 693 177.81      
10 A2" 182 171 4.41      
11 E' 3706 3489 159.63      
11 E' 3706 3489 159.63      
12 E' 1891 1780 869.35      
12 E' 1891 1780 869.35      
13 E' 1514 1425 29.77      
13 E' 1514 1425 29.77      
14 E' 1477 1391 442.14      
14 E' 1477 1391 442.15      
15 E' 1071 1008 11.18      
15 E' 1071 1008 11.18      
16 E' 541 509 26.72      
16 E' 541 509 26.72      
17 E' 411 387 29.37      
17 E' 411 387 29.37      
18 E" 846 797 0.00      
18 E" 846 797 0.00      
19 E" 717 675 0.00      
19 E" 717 675 0.00      
20 E" 174 164 0.00      
20 E" 174 164 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18667.0 cm-1
Scaled (by 0.9413) Zero Point Vibrational Energy (zpe) 17571.3 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 CISD/3-21G
ABC
0.06687 0.06687 0.03344

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.244 0.718 0.000
C2 -1.244 0.718 0.000
C3 0.000 -1.436 0.000
N4 0.000 1.338 0.000
N5 -1.159 -0.669 0.000
N6 1.159 -0.669 0.000
O7 2.299 1.327 0.000
O8 -2.299 1.327 0.000
O9 0.000 -2.654 0.000
H10 0.000 2.345 0.000
H11 -2.031 -1.173 0.000
H12 2.031 -1.173 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 N5 N6 O7 O8 O9 H10 H11 H12
C12.48732.48731.38972.77421.38971.21823.59433.59432.04823.78142.0482
C22.48732.48731.38971.38972.77423.59431.21823.59432.04822.04823.7814
C32.48732.48732.77421.38971.38973.59433.59431.21823.78142.04822.0482
N41.38971.38972.77422.31772.31772.29872.29873.99241.00733.22953.2295
N52.77421.38971.38972.31772.31773.99242.29872.29873.22951.00733.2295
N61.38972.77421.38972.31772.31772.29873.99242.29873.22953.22951.0073
O71.21823.59433.59432.29873.99242.29874.59744.59742.51414.99972.5141
O83.59431.21823.59432.29872.29873.99244.59744.59742.51412.51414.9997
O93.59433.59431.21823.99242.29872.29874.59744.59744.99972.51412.5141
H102.04822.04823.78141.00733.22953.22952.51412.51414.99974.06234.0623
H113.78142.04822.04823.22951.00733.22954.99972.51412.51414.06234.0623
H122.04823.78142.04823.22953.22951.00732.51414.99972.51414.06234.0623

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 126.998 C1 N4 H10 116.501
C1 N6 C3 126.998 C1 N6 H12 116.501
C2 N4 H10 116.501 C2 N5 C3 126.998
C2 N5 H11 116.501 C3 N5 H11 116.501
C3 N6 H12 116.501 N4 C1 N6 113.002
N4 C1 O7 123.499 N4 C2 N5 113.002
N4 C2 O8 123.499 N5 C2 O8 123.499
N5 C3 N6 113.002 N5 C3 O9 123.499
N6 C1 O7 123.499 N6 C3 O9 123.499
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability