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All results from a given calculation for C4H8O2 (1,3-Dioxane)

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-306.323991
Energy at 298.15K-306.335022
Nuclear repulsion energy256.447756
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/SDD
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3212 3100 22.14      
2 A' 3160 3051 28.89      
3 A' 3121 3013 28.74      
4 A' 3045 2939 33.57      
5 A' 3012 2907 119.86      
6 A' 2991 2887 80.18      
7 A' 1537 1484 8.28      
8 A' 1517 1464 0.75      
9 A' 1500 1448 7.22      
10 A' 1410 1361 9.72      
11 A' 1298 1253 4.29      
12 A' 1203 1162 6.45      
13 A' 1130 1091 66.21      
14 A' 1071 1034 64.50      
15 A' 965 932 53.17      
16 A' 884 854 1.70      
17 A' 785 758 13.78      
18 A' 609 588 7.04      
19 A' 464 447 1.75      
20 A' 402 388 13.99      
21 A' 260 251 5.07      
22 A" 3157 3048 34.90      
23 A" 3007 2903 24.48      
24 A" 1523 1470 2.04      
25 A" 1431 1381 5.70      
26 A" 1401 1352 3.13      
27 A" 1385 1337 1.19      
28 A" 1293 1248 0.11      
29 A" 1244 1201 16.05      
30 A" 1201 1159 4.16      
31 A" 1056 1019 0.36      
32 A" 967 933 80.89      
33 A" 909 878 36.69      
34 A" 804 776 34.79      
35 A" 435 420 12.07      
36 A" 243 235 2.66      

Unscaled Zero Point Vibrational Energy (zpe) 26814.7 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 25884.2 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/SDD
ABC
0.15542 0.15057 0.08593

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.652 -1.264 0.000
O2 0.013 -0.790 1.224
O3 0.013 -0.790 -1.224
C4 0.013 0.709 1.269
C5 0.013 0.709 -1.269
C6 0.720 1.270 0.000
H7 -0.557 -2.354 0.000
H8 -1.706 -0.915 0.000
H9 0.545 0.960 2.197
H10 -1.037 1.064 1.326
H11 0.545 0.960 -2.197
H12 -1.037 1.064 -1.326
H13 1.773 0.940 0.000
H14 0.689 2.377 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.47141.47142.43832.43832.88111.09391.11103.34782.70673.34782.70673.27693.8800
O21.47142.44751.49912.90852.49732.06632.11422.07182.13293.87913.32272.75433.4613
O31.47142.44752.90851.49912.49732.06632.11423.87913.32272.07182.13292.75433.4613
C42.43831.49912.90852.53821.55693.36392.68381.09881.11053.51582.82232.18202.2021
C52.43832.90851.49912.53821.55693.36392.68383.51582.82231.09881.11052.18202.2021
C62.88112.49732.49731.55691.55693.84183.26432.22572.21112.22572.21111.10381.1079
H71.09392.06632.06633.36393.36393.84181.84194.12613.69724.12613.69724.03464.8921
H81.11102.11422.11422.68382.68383.26431.84193.66202.47373.66202.47373.94284.0705
H93.34782.07183.87911.09883.51582.22574.12613.66201.80934.39443.86382.51722.6183
H102.70672.13293.32271.11052.82232.21113.69722.47371.80933.86382.65233.11032.5422
H113.34783.87912.07183.51581.09882.22574.12613.66204.39443.86381.80932.51722.6183
H122.70673.32272.13292.82231.11052.21113.69722.47373.86382.65231.80933.11032.5422
H133.27692.75432.75432.18202.18201.10384.03463.94282.51723.11032.51723.11031.8005
H143.88003.46133.46132.20212.20211.10794.89214.07052.61832.54222.61832.54221.8005

picture of 1,3-Dioxane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C4 110.335 C1 O3 C5 110.335
O2 C1 O3 112.545 O2 C1 H7 106.386
O2 C1 H8 109.120 O2 C4 C6 109.593
O2 C4 H9 104.728 O2 C4 H10 108.719
O3 C1 H7 106.386 O3 C1 H8 109.120
O3 C5 C6 109.593 O3 C5 H11 104.728
O3 C5 H12 108.719 C4 C6 C5 109.197
C4 C6 H13 108.994 C4 C6 H14 110.319
C5 C6 H13 108.994 C5 C6 H14 110.319
C6 C4 H9 112.739 C6 C4 H10 110.863
C6 C5 H11 112.739 C6 C5 H12 110.863
H7 C1 H8 113.313 H9 C4 H10 109.960
H11 C5 H12 109.960 H13 C6 H14 108.989
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability