return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H10O (Oxetane, 3,3-dimethyl-)

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-269.898607
Energy at 298.15K-269.910146
Nuclear repulsion energy252.997449
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 PBEPBE/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' 3054 3026 20.76      
2 A' 3049 3021 31.34      
3 A' 3031 3003 47.73      
4 A' 2975 2948 17.53      
5 A' 2969 2942 20.19      
6 A' 2960 2933 36.84      
7 A' 1533 1519 1.73      
8 A' 1518 1504 5.38      
9 A' 1502 1488 4.58      
10 A' 1417 1404 4.95      
11 A' 1395 1382 18.92      
12 A' 1316 1304 7.11      
13 A' 1274 1262 1.66      
14 A' 1241 1229 5.67      
15 A' 1077 1067 0.24      
16 A' 993 984 2.43      
17 A' 975 966 1.04      
18 A' 944 935 0.15      
19 A' 875 867 3.48      
20 A' 792 784 10.64      
21 A' 608 603 0.80      
22 A' 395 392 0.15      
23 A' 331 328 0.32      
24 A' 85 84 6.15      
25 A" 3046 3018 41.89      
26 A" 3041 3014 0.13      
27 A" 3028 3001 12.38      
28 A" 2949 2922 85.09      
29 A" 1529 1515 12.76      
30 A" 1504 1490 0.63      
31 A" 1499 1486 0.06      
32 A" 1237 1226 10.88      
33 A" 1208 1197 1.34      
34 A" 1084 1074 0.00      
35 A" 1050 1041 0.23      
36 A" 940 931 5.91      
37 A" 915 906 37.11      
38 A" 859 851 10.69      
39 A" 383 379 0.10      
40 A" 313 310 0.37      
41 A" 291 288 0.03      
42 A" 226 224 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 30703.2 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 30423.8 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 PBEPBE/3-21G
ABC
0.16823 0.10280 0.09337

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.263 1.155 0.000
H2 -1.350 1.795 0.897
H3 -1.350 1.795 -0.897
H4 -2.094 0.426 0.000
C5 1.283 1.349 0.000
H6 2.230 0.780 0.000
H7 1.264 1.999 -0.895
H8 1.264 1.999 0.895
C9 0.079 0.405 0.000
C10 0.079 -0.744 1.064
C11 0.079 -0.744 -1.064
H12 1.081 -0.934 1.493
H13 1.081 -0.934 -1.493
H14 -0.686 -0.680 1.857
H15 -0.686 -0.680 -1.857
O16 -0.287 -1.763 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 C10 C11 H12 H13 H14 H15 O16
C11.10551.10551.10482.55413.51352.81092.81091.53702.55662.55663.47693.47692.67362.67363.0766
H21.10551.79421.79772.81753.82793.17582.62222.18572.91783.51153.70344.36712.73673.76193.8200
H31.10551.79421.79772.81753.82792.62223.17582.18573.51152.91784.36713.70343.76192.73673.8200
H41.10481.79771.79773.50114.33833.81443.81442.17242.68682.68683.76283.76282.57952.57952.8384
C52.55412.81752.81753.50111.10491.10561.10561.53072.63892.63892.73602.73603.38293.38293.4855
H63.51353.82793.82794.33831.10491.79431.79432.18392.84272.84272.54712.54713.75243.75243.5773
H72.81093.17582.62223.81441.10561.79431.78922.17853.57232.99253.78652.99944.30683.45044.1658
H82.81092.62223.17583.81441.10561.79431.78922.17852.99253.57232.99943.78653.45044.30684.1658
C91.53702.18572.18572.17241.53072.18392.17852.17851.56561.56562.24232.24232.28242.28242.1983
C102.55662.91783.51152.68682.63892.84273.57232.99251.56562.12741.10692.75251.10303.01921.5176
C112.55663.51152.91782.68682.63892.84272.99253.57231.56562.12742.75251.10693.01921.10301.5176
H123.47693.70344.36713.76282.73602.54713.78652.99942.24231.10692.75252.98541.82153.79512.1872
H133.47694.36713.70343.76282.73602.54712.99943.78652.24232.75251.10692.98543.79511.82152.1872
H142.67362.73673.76192.57953.38293.75244.30683.45042.28241.10303.01921.82153.79513.71312.1857
H152.67363.76192.73672.57953.38293.75243.45044.30682.28243.01921.10303.79511.82153.71312.1857
O163.07663.82003.82002.83843.48553.57734.16584.16582.19831.51761.51762.18722.18722.18572.1857

picture of Oxetane, 3,3-dimethyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C9 C5 112.727 C1 C9 C10 110.969
C1 C9 C11 110.969 H2 C1 H3 108.475
H2 C1 H4 108.843 H2 C1 C9 110.544
H3 C1 H4 108.843 H3 C1 C9 110.544
H4 C1 C9 109.549 C5 C9 C10 116.910
C5 C9 C11 116.910 H6 C5 H7 108.524
H6 C5 H8 108.524 H6 C5 C9 110.882
H7 C5 H8 108.017 H7 C5 C9 110.406
H8 C5 C9 110.406 C9 C10 H12 112.949
C9 C10 H14 116.504 C9 C10 O16 90.946
C9 C11 H13 112.949 C9 C11 H15 116.504
C9 C11 O16 90.946 C10 C9 C11 85.592
C10 O16 C11 88.999 H12 C10 H14 111.020
H12 C10 O16 111.945 H13 C11 H15 111.020
H13 C11 O16 111.945 H14 C10 O16 112.062
H15 C11 O16 112.062
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.556      
2 H 0.201      
3 H 0.201      
4 H 0.214      
5 C -0.582      
6 H 0.203      
7 H 0.206      
8 H 0.206      
9 C -0.229      
10 C -0.122      
11 C -0.122      
12 H 0.195      
13 H 0.195      
14 H 0.201      
15 H 0.201      
16 O -0.413      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.514 2.097 0.000 2.159
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.729 -1.099 0.000
y -1.099 -43.419 0.000
z 0.000 0.000 -35.612
Traceless
 xyz
x 1.786 -1.099 0.000
y -1.099 -6.748 0.000
z 0.000 0.000 4.962
Polar
3z2-r29.924
x2-y25.690
xy-1.099
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.628 0.001 0.000
y 0.001 7.519 0.000
z 0.000 0.000 8.156


<r2> (average value of r2) Å2
<r2> 161.446
(<r2>)1/2 12.706