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

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-271.726119
Energy at 298.15K-271.739027
Nuclear repulsion energy260.517375
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 mPW1PW91/6-31+G**
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' 3133 2982 32.40      
2 A' 3119 2968 59.62      
3 A' 3107 2957 35.86      
4 A' 3063 2916 16.91      
5 A' 3048 2901 31.48      
6 A' 2992 2848 107.55      
7 A' 1515 1442 3.99      
8 A' 1499 1427 9.12      
9 A' 1488 1416 8.44      
10 A' 1428 1359 8.85      
11 A' 1388 1321 1.35      
12 A' 1337 1272 5.16      
13 A' 1291 1229 5.25      
14 A' 1182 1125 3.44      
15 A' 1065 1014 12.18      
16 A' 1032 982 9.59      
17 A' 907 863 23.53      
18 A' 868 826 5.82      
19 A' 842 802 2.23      
20 A' 565 537 3.94      
21 A' 437 416 1.72      
22 A' 402 383 4.61      
23 A' 249 237 4.23      
24 A" 3131 2980 46.85      
25 A" 3113 2963 34.78      
26 A" 3063 2915 35.13      
27 A" 2987 2843 26.45      
28 A" 1501 1429 1.84      
29 A" 1479 1408 3.48      
30 A" 1402 1334 5.38      
31 A" 1387 1321 0.80      
32 A" 1357 1291 0.03      
33 A" 1309 1246 8.93      
34 A" 1245 1185 53.60      
35 A" 1198 1140 0.00      
36 A" 1151 1095 67.52      
37 A" 1077 1025 10.62      
38 A" 988 940 3.31      
39 A" 902 859 0.44      
40 A" 825 786 0.41      
41 A" 466 443 0.02      
42 A" 243 232 0.44      

Unscaled Zero Point Vibrational Energy (zpe) 32390.1 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 30828.9 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 mPW1PW91/6-31+G**
ABC
0.15662 0.15075 0.08705

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 1.422 0.000
C2 0.061 -1.460 0.000
H3 -0.998 -1.752 0.000
H4 0.642 -2.389 0.000
C5 0.357 -0.635 1.252
C6 0.357 -0.635 -1.252
C7 -0.350 0.712 -1.173
C8 -0.350 0.712 1.173
H9 0.039 -1.165 2.157
H10 0.039 -1.165 -2.157
H11 1.436 -0.462 1.338
H12 1.436 -0.462 -1.338
H13 -1.444 0.566 -1.202
H14 -1.444 0.566 1.202
H15 -0.076 1.359 -2.010
H16 -0.076 1.359 2.010

Atom - Atom Distances (Å)
  O1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
O12.88273.32653.86392.43392.43391.41501.41503.36833.36832.72002.72002.06412.06412.01262.0126
C22.88271.09851.09471.52891.52892.50342.50342.17732.17732.16262.16262.79562.79563.46523.4652
H33.32651.09851.75902.15652.15652.80492.80492.46422.46423.06213.06212.64852.64853.81653.8165
H43.86391.09471.75902.17402.17403.46063.46062.55212.55212.47652.47653.81083.81084.31264.3126
C52.43391.52892.15652.17402.50492.86321.52311.09573.46511.09632.81163.27192.16433.84772.1760
C62.43391.52892.15652.17402.50491.52312.86323.46511.09572.81161.09632.16433.27192.17603.8477
C71.41502.50342.80493.46062.86321.52312.34663.84282.15503.29762.14351.10362.61891.09243.2600
C81.41502.50342.80493.46061.52312.86322.34662.15503.84282.14353.29762.61891.10363.26001.0924
H93.36832.17732.46422.55211.09573.46513.84282.15504.31421.76533.82894.05922.47124.87332.5307
H103.36832.17732.46422.55213.46511.09572.15503.84284.31423.82891.76532.47124.05922.53074.8733
H112.72002.16263.06212.47651.09632.81163.29762.14351.76533.82892.67603.97463.06024.09992.4599
H122.72002.16263.06212.47652.81161.09632.14353.29763.82891.76532.67603.06023.97462.45994.0999
H132.06412.79562.64853.81083.27192.16431.10362.61894.05922.47123.97463.06022.40371.77553.5800
H142.06412.79562.64853.81082.16433.27192.61891.10362.47124.05923.06023.97462.40373.58001.7755
H152.01263.46523.81654.31263.84772.17601.09243.26004.87332.53074.09992.45991.77553.58004.0203
H162.01263.46523.81654.31262.17603.84773.26001.09242.53074.87332.45994.09993.58001.77554.0203

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 111.814 O1 C7 H13 109.459
O1 C7 H15 106.048 O1 C8 C5 111.814
O1 C8 H14 109.459 O1 C8 H16 106.048
C2 C5 C8 110.213 C2 C5 H9 111.036
C2 C5 H11 109.826 C2 C6 C7 110.213
C2 C6 H10 111.036 C2 C6 H12 109.826
H3 C2 H4 106.650 H3 C2 C5 109.230
H3 C2 C6 109.230 H4 C2 C5 110.826
H4 C2 C6 110.826 C5 C2 C6 109.999
C5 C8 H14 109.940 C5 C8 H16 111.532
C6 C7 H13 109.940 C6 C7 H15 111.532
C7 O1 C8 112.025 C7 C6 H10 109.668
C7 C6 H12 108.739 C8 C5 H9 109.668
C8 C5 H11 108.739 H9 C5 H11 107.285
H10 C6 H12 107.285 H13 C7 H15 107.901
H14 C8 H16 107.901
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.308      
2 C -0.273      
3 H 0.165      
4 H 0.166      
5 C -0.304      
6 C -0.304      
7 C -0.209      
8 C -0.209      
9 H 0.162      
10 H 0.162      
11 H 0.175      
12 H 0.175      
13 H 0.141      
14 H 0.141      
15 H 0.160      
16 H 0.160      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.412 -1.562 0.000 1.616
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.126 -0.553 0.000
y -0.553 -41.870 0.000
z 0.000 0.000 -35.398
Traceless
 xyz
x 0.508 -0.553 0.000
y -0.553 -5.108 0.000
z 0.000 0.000 4.600
Polar
3z2-r29.199
x2-y23.744
xy-0.553
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 152.091
(<r2>)1/2 12.333