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All results from a given calculation for C3H6O3 (1,3,5-Trioxane)

using model chemistry: MP2=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A1
Energy calculated at MP2=FULL/3-21G
 hartrees
Energy at 0K-340.386522
Energy at 298.15K 
HF Energy-339.751912
Nuclear repulsion energy262.311742
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 MP2=FULL/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 3224 3078 13.81      
2 A1 3015 2879 169.30      
3 A1 1605 1533 8.86      
4 A1 1230 1174 6.64      
5 A1 946 903 74.99      
6 A1 698 667 0.76      
7 A1 443 423 25.02      
8 A2 1423 1359 0.00      
9 A2 1262 1205 0.00      
10 A2 929 887 0.00      
11 E 3218 3073 23.40      
11 E 3218 3073 23.40      
12 E 3002 2867 19.77      
12 E 3002 2867 19.77      
13 E 1586 1514 0.40      
13 E 1586 1514 0.40      
14 E 1478 1412 23.13      
14 E 1478 1412 23.13      
15 E 1338 1278 0.76      
15 E 1338 1278 0.76      
16 E 1149 1097 109.58      
16 E 1149 1097 109.58      
17 E 1049 1001 113.20      
17 E 1049 1001 113.20      
18 E 892 852 16.47      
18 E 892 852 16.47      
19 E 503 480 14.16      
19 E 503 480 14.16      
20 E 290 277 0.10      
20 E 290 277 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 21892.5 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 20902.9 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 MP2=FULL/3-21G
ABC
0.16478 0.16478 0.09144

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.369 0.192
C2 -1.185 -0.684 0.192
C3 1.185 -0.684 0.192
O4 -1.213 0.700 -0.276
O5 1.213 0.700 -0.276
O6 0.000 -1.400 -0.276
H7 0.000 2.365 -0.239
H8 0.000 1.399 1.295
H9 -2.048 -1.183 -0.239
H10 -1.212 -0.700 1.295
H11 2.048 -1.183 -0.239
H12 1.212 -0.700 1.295

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 O6 H7 H8 H9 H10 H11 H12
C12.37092.37091.46191.46192.80831.08591.10283.30042.63873.30042.6387
C22.37092.37091.46192.80831.46193.30042.63871.08591.10283.30042.6387
C32.37092.37092.80831.46191.46193.30042.63873.30042.63871.08591.1028
O41.46191.46192.80832.42502.42502.06032.10412.06032.10413.76563.2101
O51.46192.80831.46192.42502.42502.06032.10413.76563.21012.06032.1041
O62.80831.46191.46192.42502.42503.76563.21012.06032.10412.06032.1041
H71.08593.30043.30042.06032.06033.76561.81274.09693.63534.09693.6353
H81.10282.63872.63872.10412.10413.21011.81273.63532.42373.63532.4237
H93.30041.08593.30042.06033.76562.06034.09693.63531.81274.09693.6353
H102.63871.10282.63872.10413.21012.10413.63532.42371.81273.63532.4237
H113.30043.30041.08593.76562.06032.06034.09693.63534.09693.63531.8127
H122.63872.63871.10283.21012.10412.10413.63532.42373.63532.42371.8127

picture of 1,3,5-Trioxane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 C2 108.370 C1 O5 C3 108.370
C2 O6 C3 108.370 O4 C1 O5 112.078
O4 C1 H7 107.002 O4 C1 H8 109.457
O4 C2 O6 112.078 O4 C2 H9 107.002
O4 C2 H10 109.457 O5 C1 H7 107.002
O5 C1 H8 109.457 O5 C3 O6 112.078
O5 C3 H11 107.002 O5 C3 H12 109.457
O6 C2 H9 107.002 O6 C2 H10 109.457
O6 C3 H11 107.002 O6 C3 H12 109.457
H7 C1 H8 111.832 H9 C2 H10 111.832
H11 C3 H12 111.832
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability