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

using model chemistry: BLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/3-21G
 hartrees
Energy at 0K-305.858634
Energy at 298.15K-305.869601
Nuclear repulsion energy257.511801
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 BLYP/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 A' 3069 3052 30.26      
2 A' 3051 3034 28.36      
3 A' 3039 3022 15.18      
4 A' 2985 2969 22.49      
5 A' 2905 2889 105.50      
6 A' 2850 2834 82.54      
7 A' 1514 1506 8.11      
8 A' 1496 1488 1.08      
9 A' 1484 1476 5.00      
10 A' 1367 1359 16.19      
11 A' 1285 1277 3.21      
12 A' 1152 1146 4.50      
13 A' 1079 1073 39.85      
14 A' 1035 1029 71.39      
15 A' 938 933 44.66      
16 A' 844 840 3.19      
17 A' 780 776 10.45      
18 A' 594 591 4.50      
19 A' 463 460 0.83      
20 A' 404 402 11.94      
21 A' 258 257 2.03      
22 A" 3042 3025 40.53      
23 A" 2895 2879 21.40      
24 A" 1502 1494 1.21      
25 A" 1404 1397 4.67      
26 A" 1365 1357 0.16      
27 A" 1344 1336 4.36      
28 A" 1276 1269 0.18      
29 A" 1230 1223 9.73      
30 A" 1181 1174 4.95      
31 A" 991 985 1.37      
32 A" 913 908 30.48      
33 A" 886 882 75.46      
34 A" 813 808 19.92      
35 A" 434 432 8.23      
36 A" 239 238 1.86      

Unscaled Zero Point Vibrational Energy (zpe) 26051.9 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 25908.6 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 BLYP/3-21G
ABC
0.15773 0.15095 0.08681

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.655 -1.234 0.000
O2 0.015 -0.793 1.226
O3 0.015 -0.793 -1.226
C4 0.015 0.696 1.263
C5 0.015 0.696 -1.263
C6 0.720 1.260 0.000
H7 -0.599 -2.329 0.000
H8 -1.709 -0.879 0.000
H9 0.546 0.967 2.186
H10 -1.026 1.080 1.311
H11 0.546 0.967 -2.186
H12 -1.026 1.080 -1.311
H13 1.768 0.924 0.000
H14 0.687 2.363 0.000

Atom - Atom Distances (Å)
  C1 O2 O3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.46531.46532.40222.40222.84801.09621.11313.32662.68513.32662.68513.24513.8395
O21.46532.45261.48952.90072.49302.05942.11772.07352.14403.87613.32052.74353.4520
O31.46532.45262.90071.48952.49302.05942.11773.87613.32052.07352.14402.74353.4520
C42.40221.48952.90072.52611.55253.33542.65521.09911.11053.50062.80272.17302.1968
C52.40222.90071.48952.52611.55253.33542.65523.50062.80271.09911.11052.17302.1968
C62.84802.49302.49301.55251.55253.82393.23692.21282.19092.21282.19091.10081.1038
H71.09622.05942.05943.33543.33543.82391.82624.11753.67674.11753.67674.02374.8654
H81.11312.11772.11772.65522.65523.23691.82623.64352.45363.64352.45363.91754.0316
H93.32662.07353.87611.09913.50062.21284.11753.64351.80364.37283.83612.50502.5983
H102.68512.14403.32051.11052.80272.19093.67672.45361.80363.83612.62133.09062.5101
H113.32663.87612.07353.50061.09912.21284.11753.64354.37283.83611.80362.50502.5983
H122.68513.32052.14402.80271.11052.19093.67672.45363.83612.62131.80363.09062.5101
H133.24512.74352.74352.17302.17301.10084.02373.91752.50503.09062.50503.09061.8002
H143.83953.45203.45202.19682.19681.10384.86544.03162.59832.51012.59832.51011.8002

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 108.774 C1 O3 C5 108.774
O2 C1 O3 113.631 O2 C1 H7 106.132
O2 C1 H8 109.686 O2 C4 C6 110.057
O2 C4 H9 105.459 O2 C4 H10 110.249
O3 C1 H7 106.132 O3 C1 H8 109.686
O3 C5 C6 110.057 O3 C5 H11 105.459
O3 C5 H12 110.249 C4 C6 C5 108.888
C4 C6 H13 108.772 C4 C6 H14 110.443
C5 C6 H13 108.772 C5 C6 H14 110.443
C6 C4 H9 111.995 C6 C4 H10 109.594
C6 C5 H11 111.995 C6 C5 H12 109.594
H7 C1 H8 111.508 H9 C4 H10 109.420
H11 C5 H12 109.420 H13 C6 H14 109.485
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.058      
2 O -0.424      
3 O -0.424      
4 C -0.143      
5 C -0.143      
6 C -0.383      
7 H 0.205      
8 H 0.154      
9 H 0.197      
10 H 0.164      
11 H 0.197      
12 H 0.164      
13 H 0.205      
14 H 0.172      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.748 1.986 0.000 2.122
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.932 1.782 0.000
y 1.782 -34.911 0.000
z 0.000 0.000 -38.976
Traceless
 xyz
x 1.011 1.782 0.000
y 1.782 2.543 0.000
z 0.000 0.000 -3.554
Polar
3z2-r2-7.109
x2-y2-1.021
xy1.782
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.149 0.546 0.000
y 0.546 7.525 0.000
z 0.000 0.000 6.795


<r2> (average value of r2) Å2
<r2> 145.712
(<r2>)1/2 12.071