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All results from a given calculation for C4H8O2 (1,3-Dioxolane, 2-methyl-)

using model chemistry: HSEh1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HSEh1PBE/3-21G
 hartrees
Energy at 0K-305.659848
Energy at 298.15K-305.670276
HF Energy-305.659848
Nuclear repulsion energy260.628063
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 HSEh1PBE/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 3179 3062 21.48      
2 A 3175 3058 10.33      
3 A 3173 3056 26.25      
4 A 3165 3049 14.54      
5 A 3092 2979 6.50      
6 A 3088 2975 54.63      
7 A 3073 2960 53.14      
8 A 3064 2952 27.48      
9 A 1563 1506 0.16      
10 A 1558 1501 5.67      
11 A 1551 1494 2.64      
12 A 1545 1489 5.59      
13 A 1458 1404 25.20      
14 A 1422 1370 32.35      
15 A 1389 1338 0.53      
16 A 1383 1333 17.70      
17 A 1312 1263 9.24      
18 A 1254 1208 10.79      
19 A 1219 1175 0.68      
20 A 1166 1123 31.34      
21 A 1157 1114 84.40      
22 A 1131 1090 53.55      
23 A 1113 1072 49.22      
24 A 1045 1006 16.65      
25 A 1014 977 30.44      
26 A 948 913 10.59      
27 A 921 887 1.46      
28 A 855 824 35.30      
29 A 834 803 5.51      
30 A 703 677 2.91      
31 A 628 605 5.01      
32 A 458 441 16.90      
33 A 352 339 2.18      
34 A 248 238 1.17      
35 A 231 223 0.38      
36 A 52 50 12.21      

Unscaled Zero Point Vibrational Energy (zpe) 26757.5 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 25775.5 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 HSEh1PBE/3-21G
ABC
0.20653 0.11781 0.08997

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.076 0.011 -0.244
H2 -2.633 -0.908 -0.043
H3 -2.639 0.868 0.132
H4 -1.924 0.118 -1.321
C5 -0.727 -0.046 0.429
H6 -0.837 -0.156 1.522
O7 0.030 1.152 0.143
O8 0.034 -1.134 -0.115
C9 1.421 -0.756 0.031
H10 2.019 -1.303 -0.699
H11 1.799 -0.967 1.044
C12 1.385 0.774 -0.215
H13 1.577 1.002 -1.270
H14 2.114 1.307 0.402

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 O7 O8 C9 H10 H11 C12 H13 H14
C11.09311.09281.09271.50802.16352.42602.40373.59064.32484.19833.54383.92154.4336
H21.09311.78501.78562.14382.49803.37162.67704.05754.71494.56324.35894.78295.2576
H31.09281.78501.78452.14042.49602.68433.34924.37465.20674.88854.04014.44544.7818
H41.09271.78561.78452.12563.05552.65092.61793.71214.23714.54123.54943.61084.5485
C51.50802.14382.14042.12561.10451.44601.43462.29723.22412.75792.35543.04863.1478
H62.16352.49802.49603.05551.10452.08892.09662.77183.79612.79922.96963.86843.4794
O72.42603.37162.68432.65091.44602.08892.30102.36413.27032.90351.45142.10092.1065
O82.40372.67703.34922.61791.43462.09662.30101.44572.07692.11792.34072.87763.2495
C93.59064.05754.37463.71212.29722.77182.36411.44571.09111.10071.55042.19272.2080
H104.32484.71495.20674.23713.22413.79613.27032.07691.09111.78832.22542.41522.8346
H114.19834.56324.88854.54122.75792.79922.90352.11791.10071.78832.18793.04592.3838
C123.54384.35894.04013.54942.35542.96961.45142.34071.55042.22542.18791.09651.0943
H133.92154.78294.44543.61083.04863.86842.10092.87762.19272.41523.04591.09651.7831
H144.43365.25764.78184.54853.14783.47942.10653.24952.20802.83462.38381.09431.7831

picture of 1,3-Dioxolane, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.872 C1 C5 O7 110.407
C1 C5 O8 109.520 H2 C1 H3 109.490
H2 C1 H4 109.548 H2 C1 C5 109.986
H3 C1 H4 109.483 H3 C1 C5 109.738
H4 C1 C5 108.579 C5 O7 C12 108.769
C5 O8 C9 105.795 H6 C5 O7 109.247
H6 C5 O8 110.654 O7 C5 O8 106.031
O7 C12 C9 103.868 O7 C12 H13 110.313
O7 C12 H14 110.900 O8 C9 H10 109.112
O8 C9 H11 111.838 O8 C9 C12 102.695
C9 C12 H13 110.695 C9 C12 H14 112.046
H10 C9 H11 109.354 H10 C9 C12 113.663
H11 C9 C12 110.077 H13 C12 H14 108.956
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.628      
2 H 0.226      
3 H 0.222      
4 H 0.227      
5 C 0.225      
6 H 0.228      
7 O -0.488      
8 O -0.493      
9 C -0.209      
10 H 0.233      
11 H 0.222      
12 C -0.221      
13 H 0.220      
14 H 0.235      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.052 0.116 -0.646 1.240
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.717 0.287 -1.380
y 0.287 -41.392 -1.284
z -1.380 -1.284 -35.530
Traceless
 xyz
x 7.744 0.287 -1.380
y 0.287 -8.269 -1.284
z -1.380 -1.284 0.525
Polar
3z2-r21.050
x2-y210.675
xy0.287
xz-1.380
yz-1.284


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.909 0.071 -0.343
y 0.071 5.812 -0.074
z -0.343 -0.074 5.907


<r2> (average value of r2) Å2
<r2> 147.498
(<r2>)1/2 12.145