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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-503.158963
Energy at 298.15K-503.166768
HF Energy-503.158963
Nuclear repulsion energy445.781710
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 B1B95/3-21G
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' 3620 3463 0.00      
2 A1' 1852 1772 0.00      
3 A1' 1003 960 0.00      
4 A1' 668 639 0.00      
5 A2' 1438 1376 0.01      
6 A2' 1222 1169 0.00      
7 A2' 624 597 0.00      
8 A2" 902 863 437.37      
9 A2" 719 688 160.62      
10 A2" 177 169 4.16      
11 E' 3617 3460 154.96      
11 E' 3617 3460 154.90      
12 E' 1834 1755 733.96      
12 E' 1834 1755 734.38      
13 E' 1456 1393 98.65      
13 E' 1456 1393 99.19      
14 E' 1435 1372 297.56      
14 E' 1434 1372 297.49      
15 E' 1041 996 4.69      
15 E' 1041 996 4.71      
16 E' 513 491 23.05      
16 E' 513 491 23.06      
17 E' 391 374 24.14      
17 E' 391 374 24.15      
18 E" 824 788 0.00      
18 E" 824 788 0.00      
19 E" 697 667 0.00      
19 E" 697 667 0.00      
20 E" 170 163 0.00      
20 E" 170 163 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18089.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 17306.3 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 B1B95/3-21G
ABC
0.06681 0.06681 0.03340

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.243 0.718 0.000
C2 -1.243 0.718 0.000
C3 0.000 -1.436 0.000
N4 0.000 1.334 0.000
N5 -1.155 -0.667 0.000
N6 1.155 -0.667 0.000
O7 2.302 1.329 0.000
O8 -2.302 1.329 0.000
O9 0.000 -2.658 0.000
H10 0.000 2.347 0.000
H11 -2.032 -1.173 0.000
H12 2.032 -1.173 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 N5 N6 O7 O8 O9 H10 H11 H12
C12.48642.48641.38762.76961.38761.22273.59763.59762.04923.78232.0492
C22.48642.48641.38761.38762.76963.59761.22273.59762.04922.04923.7823
C32.48642.48642.76961.38761.38763.59763.59761.22273.78232.04922.0492
N41.38761.38762.76962.31062.31062.30212.30213.99231.01273.22763.2276
N52.76961.38761.38762.31062.31063.99232.30212.30213.22761.01273.2276
N61.38762.76961.38762.31062.31062.30213.99232.30213.22763.22761.0127
O71.22273.59763.59762.30213.99232.30214.60424.60422.51705.00502.5170
O83.59761.22273.59762.30212.30213.99234.60424.60422.51702.51705.0050
O93.59763.59761.22273.99232.30212.30214.60424.60425.00502.51702.5170
H102.04922.04923.78231.01273.22763.22762.51702.51705.00504.06474.0647
H113.78232.04922.04923.22761.01273.22765.00502.51702.51704.06474.0647
H122.04923.78232.04923.22763.22761.01272.51705.00502.51704.06474.0647

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 127.264 C1 N4 H10 116.368
C1 N6 C3 127.264 C1 N6 H12 116.368
C2 N4 H10 116.368 C2 N5 C3 127.264
C2 N5 H11 116.368 C3 N5 H11 116.368
C3 N6 H12 116.368 N4 C1 N6 112.736
N4 C1 O7 123.632 N4 C2 N5 112.736
N4 C2 O8 123.632 N5 C2 O8 123.632
N5 C3 N6 112.736 N5 C3 O9 123.632
N6 C1 O7 123.632 N6 C3 O9 123.632
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability