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

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-271.705985
Energy at 298.15K-271.718898
Nuclear repulsion energy260.695927
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 mPW1PW91/6-31G*
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 2975 42.83      
2 A' 3126 2964 55.81      
3 A' 3114 2953 37.26      
4 A' 3072 2914 15.00      
5 A' 3056 2898 27.06      
6 A' 2997 2843 103.79      
7 A' 1541 1461 3.63      
8 A' 1524 1445 6.27      
9 A' 1512 1434 7.52      
10 A' 1451 1376 9.66      
11 A' 1405 1333 0.68      
12 A' 1352 1282 4.00      
13 A' 1306 1239 6.00      
14 A' 1195 1133 3.67      
15 A' 1076 1020 9.57      
16 A' 1038 985 10.25      
17 A' 916 869 19.46      
18 A' 874 829 5.57      
19 A' 849 805 1.67      
20 A' 566 536 3.72      
21 A' 439 416 1.57      
22 A' 405 384 4.71      
23 A' 251 238 3.47      
24 A" 3135 2973 47.13      
25 A" 3120 2959 37.41      
26 A" 3072 2913 30.21      
27 A" 2991 2837 20.99      
28 A" 1525 1446 0.55      
29 A" 1503 1425 2.31      
30 A" 1419 1346 10.67      
31 A" 1405 1333 0.83      
32 A" 1373 1302 0.02      
33 A" 1324 1255 10.01      
34 A" 1257 1192 52.61      
35 A" 1211 1149 0.01      
36 A" 1162 1102 67.59      
37 A" 1084 1028 8.62      
38 A" 998 946 3.23      
39 A" 907 860 0.50      
40 A" 832 789 0.28      
41 A" 467 443 0.01      
42 A" 243 231 0.51      

Unscaled Zero Point Vibrational Energy (zpe) 32613.4 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 30927.3 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 mPW1PW91/6-31G*
ABC
0.15700 0.15084 0.08725

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 1.420 0.000
C2 0.064 -1.460 0.000
H3 -0.995 -1.751 0.000
H4 0.646 -2.388 0.000
C5 0.358 -0.633 1.252
C6 0.358 -0.633 -1.252
C7 -0.353 0.712 -1.169
C8 -0.353 0.712 1.169
H9 0.046 -1.165 2.158
H10 0.046 -1.165 -2.158
H11 1.437 -0.454 1.333
H12 1.437 -0.454 -1.333
H13 -1.446 0.559 -1.197
H14 -1.446 0.559 1.197
H15 -0.084 1.358 -2.008
H16 -0.084 1.358 2.008

Atom - Atom Distances (Å)
  O1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
O12.88123.32423.86302.43172.43171.41201.41203.36803.36802.71232.71232.06612.06612.01112.0111
C22.88121.09881.09521.52891.52892.50152.50152.17852.17852.16192.16192.79132.79133.46403.4640
H33.32421.09881.76022.15622.15622.80092.80092.46702.46703.06203.06202.64062.64063.81223.8122
H43.86301.09521.76022.17502.17503.46043.46042.55242.55242.47882.47883.80713.80714.31314.3131
C52.43171.52892.15622.17502.50402.85941.52371.09613.46561.09662.80713.26752.16323.84602.1758
C62.43171.52892.15622.17502.50401.52372.85943.46561.09612.80711.09662.16323.26752.17583.8460
C71.41202.50152.80093.46042.85941.52372.33813.84082.15853.29032.14271.10412.61131.09313.2537
C81.41202.50152.80093.46041.52372.85942.33812.15853.84082.14273.29032.61131.10413.25371.0931
H93.36802.17852.46702.55241.09613.46563.84082.15854.31651.76653.82514.05692.47394.87282.5309
H103.36802.17852.46702.55243.46561.09612.15853.84084.31653.82511.76652.47394.05692.53094.8728
H112.71232.16193.06202.47881.09662.80713.29032.14271.76653.82512.66663.96793.05904.09472.4607
H122.71232.16193.06202.47882.80711.09662.14273.29033.82511.76652.66663.05903.96792.46074.0947
H132.06612.79132.64063.80713.26752.16321.10412.61134.05692.47393.96793.05902.39501.77553.5739
H142.06612.79132.64063.80712.16323.26752.61131.10412.47394.05693.05903.96792.39503.57391.7755
H152.01113.46403.81224.31313.84602.17581.09313.25374.87282.53094.09472.46071.77553.57394.0168
H162.01113.46403.81224.31312.17583.84603.25371.09312.53094.87282.46074.09473.57391.77554.0168

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 111.793 O1 C7 H13 109.793
O1 C7 H15 106.096 O1 C8 C5 111.793
O1 C8 H14 109.793 O1 C8 H16 106.096
C2 C5 C8 110.064 C2 C5 H9 111.103
C2 C5 H11 109.758 C2 C6 C7 110.064
C2 C6 H10 111.103 C2 C6 H12 109.758
H3 C2 H4 106.692 H3 C2 C5 109.184
H3 C2 C6 109.184 H4 C2 C5 110.876
H4 C2 C6 110.876 C5 C2 C6 109.947
C5 C8 H14 109.781 C5 C8 H16 111.433
C6 C7 H13 109.781 C6 C7 H15 111.433
C7 O1 C8 111.774 C7 C6 H10 109.886
C7 C6 H12 108.617 C8 C5 H9 109.886
C8 C5 H11 108.617 H9 C5 H11 107.341
H10 C6 H12 107.341 H13 C7 H15 107.811
H14 C8 H16 107.811
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.470      
2 C -0.333      
3 H 0.160      
4 H 0.171      
5 C -0.338      
6 C -0.338      
7 C -0.079      
8 C -0.079      
9 H 0.164      
10 H 0.164      
11 H 0.173      
12 H 0.173      
13 H 0.141      
14 H 0.141      
15 H 0.174      
16 H 0.174      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.357 -1.379 0.000 1.424
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.457 -0.382 0.000
y -0.382 -40.814 0.000
z 0.000 0.000 -34.957
Traceless
 xyz
x 0.429 -0.382 0.000
y -0.382 -4.607 0.000
z 0.000 0.000 4.178
Polar
3z2-r28.356
x2-y23.357
xy-0.382
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> 151.424
(<r2>)1/2 12.305