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All results from a given calculation for C5H10O (2H-Pyran, tetrahydro-)

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-271.628985
Energy at 298.15K-271.641858
Nuclear repulsion energy261.299895
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 B1B95/6-31G*
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' 3137 2978 43.83      
2 A' 3129 2970 51.26      
3 A' 3117 2959 37.30      
4 A' 3075 2919 14.96      
5 A' 3058 2903 26.25      
6 A' 2992 2841 105.74      
7 A' 1531 1453 3.55      
8 A' 1517 1440 6.17      
9 A' 1507 1430 7.85      
10 A' 1444 1371 10.55      
11 A' 1401 1330 0.67      
12 A' 1348 1279 4.16      
13 A' 1300 1234 6.03      
14 A' 1188 1128 4.04      
15 A' 1074 1020 9.94      
16 A' 1036 983 10.02      
17 A' 919 872 18.98      
18 A' 868 824 5.43      
19 A' 851 808 1.57      
20 A' 553 525 3.99      
21 A' 430 408 1.44      
22 A' 398 378 4.12      
23 A' 253 240 3.51      
24 A" 3135 2976 45.54      
25 A" 3124 2965 39.20      
26 A" 3075 2919 29.31      
27 A" 2987 2835 19.35      
28 A" 1516 1439 0.50      
29 A" 1497 1421 2.01      
30 A" 1413 1342 10.67      
31 A" 1402 1331 1.03      
32 A" 1366 1297 0.00      
33 A" 1319 1252 10.83      
34 A" 1256 1193 56.59      
35 A" 1206 1145 0.03      
36 A" 1165 1106 63.44      
37 A" 1082 1028 8.87      
38 A" 991 941 3.08      
39 A" 910 864 0.47      
40 A" 826 784 0.22      
41 A" 458 435 0.02      
42 A" 239 227 0.52      

Unscaled Zero Point Vibrational Energy (zpe) 32545.9 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 30895.8 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 B1B95/6-31G*
ABC
0.15777 0.15157 0.08781

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.670 -1.249 0.000
C2 0.631 1.313 0.000
H3 1.699 1.059 0.000
H4 0.566 2.405 0.000
C5 -0.021 0.726 1.248
C6 -0.021 0.726 -1.248
C7 -0.021 -0.792 -1.165
C8 -0.021 -0.792 1.165
H9 0.499 1.050 2.156
H10 0.499 1.050 -2.156
H11 -1.057 1.073 1.324
H12 -1.057 1.073 -1.324
H13 1.017 -1.164 -1.183
H14 1.017 -1.164 1.183
H15 -0.553 -1.240 -2.007
H16 -0.553 -1.240 2.007

Atom - Atom Distances (Å)
  O1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
O12.87373.30783.85762.42532.42531.40981.40983.36133.36132.70062.70062.06262.06262.01022.0102
C22.87371.09771.09391.52571.52572.49262.49262.17562.17562.15892.15892.77262.77263.45653.4565
H33.30781.09771.75922.15122.15122.78252.78252.46702.46703.05793.05792.60952.60953.79293.7929
H43.85761.09391.75922.17272.17273.45283.45282.54712.54712.48252.48253.78743.78744.30884.3088
C52.42531.52572.15122.17272.49652.85111.52051.09483.45851.09542.79433.25042.15823.83992.1737
C62.42531.52572.15122.17272.49651.52052.85113.45851.09482.79431.09542.15823.25042.17373.8399
C71.40982.49262.78253.45282.85111.52052.33003.83252.15483.27782.13921.10342.59441.09213.2472
C81.40982.49262.78253.45281.52052.85112.33002.15483.83252.13923.27782.59441.10343.24721.0921
H93.36132.17562.46702.54711.09483.45853.83252.15484.31111.76533.81164.03952.47314.86572.5243
H103.36132.17562.46702.54713.45851.09482.15483.83254.31113.81161.76532.47314.03952.52434.8657
H112.70062.15893.05792.48251.09542.79433.27782.13921.76533.81162.64713.94893.05454.08582.4636
H122.70062.15893.05792.48252.79431.09542.13923.27783.81161.76532.64713.05453.94892.46364.0858
H132.06262.77262.60953.78743.25042.15821.10342.59444.03952.47313.94893.05452.36631.77513.5564
H142.06262.77262.60953.78742.15823.25042.59441.10342.47314.03953.05453.94892.36633.55641.7751
H152.01023.45653.79294.30883.83992.17371.09213.24724.86572.52434.08582.46361.77513.55644.0135
H162.01023.45653.79294.30882.17373.83993.24721.09212.52434.86572.46364.08583.55641.77514.0135

picture of 2H-Pyran, tetrahydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C7 C6 111.660 O1 C7 H13 109.714
O1 C7 H15 106.232 O1 C8 C5 111.660
O1 C8 H14 109.714 O1 C8 H16 106.232
C2 C5 C8 109.826 C2 C5 H9 111.180
C2 C5 H11 109.825 C2 C6 C7 109.826
C2 C6 H10 111.180 C2 C6 H12 109.825
H3 C2 H4 106.778 H3 C2 C5 109.084
H3 C2 C6 109.084 H4 C2 C5 111.006
H4 C2 C6 111.006 C5 C2 C6 109.802
C5 C8 H14 109.652 C5 C8 H16 111.557
C6 C7 H13 109.652 C6 C7 H15 111.557
C7 O1 C8 111.451 C7 C6 H10 109.891
C7 C6 H12 108.634 C8 C5 H9 109.891
C8 C5 H11 108.634 H9 C5 H11 107.420
H10 C6 H12 107.420 H13 C7 H15 107.905
H14 C8 H16 107.905
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.470      
2 C -0.316      
3 H 0.152      
4 H 0.163      
5 C -0.320      
6 C -0.320      
7 C -0.065      
8 C -0.065      
9 H 0.156      
10 H 0.156      
11 H 0.166      
12 H 0.166      
13 H 0.133      
14 H 0.133      
15 H 0.166      
16 H 0.166      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.955 1.044 0.000 1.415
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.565 -1.582 0.000
y -1.582 -39.730 0.000
z 0.000 0.000 -34.982
Traceless
 xyz
x -1.209 -1.582 0.000
y -1.582 -2.957 0.000
z 0.000 0.000 4.166
Polar
3z2-r28.332
x2-y21.165
xy-1.582
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.353 0.067 0.000
y 0.067 7.841 0.000
z 0.000 0.000 8.763


<r2> (average value of r2) Å2
<r2> 150.717
(<r2>)1/2 12.277