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

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-48.965087
Energy at 298.15K-48.978283
Nuclear repulsion energy145.841780
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 HF/CEP-121G*
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' 3267 2951 63.52      
2 A' 3233 2921 151.58      
3 A' 3218 2907 75.59      
4 A' 3184 2877 7.21      
5 A' 3167 2861 53.83      
6 A' 3149 2845 115.79      
7 A' 1654 1495 1.55      
8 A' 1633 1475 4.17      
9 A' 1616 1460 3.75      
10 A' 1563 1412 20.50      
11 A' 1512 1366 0.18      
12 A' 1443 1304 6.53      
13 A' 1386 1253 6.10      
14 A' 1285 1161 4.63      
15 A' 1134 1025 10.47      
16 A' 1093 988 16.95      
17 A' 959 866 24.60      
18 A' 930 840 4.39      
19 A' 875 790 1.77      
20 A' 606 547 5.15      
21 A' 459 415 1.93      
22 A' 419 379 5.90      
23 A' 260 235 5.40      
24 A" 3263 2948 93.85      
25 A" 3223 2912 56.44      
26 A" 3182 2874 63.33      
27 A" 3138 2835 19.27      
28 A" 1638 1480 0.06      
29 A" 1610 1455 2.10      
30 A" 1527 1379 22.19      
31 A" 1515 1369 0.03      
32 A" 1470 1328 0.00      
33 A" 1407 1271 15.18      
34 A" 1345 1215 69.64      
35 A" 1291 1166 0.15      
36 A" 1242 1122 92.76      
37 A" 1127 1018 7.02      
38 A" 1057 955 2.77      
39 A" 941 850 1.63      
40 A" 886 800 1.36      
41 A" 491 444 0.00      
42 A" 248 224 0.36      

Unscaled Zero Point Vibrational Energy (zpe) 34323.6 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 31008.0 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 HF/CEP-121G*
ABC
0.15584 0.15037 0.08655

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 1.421 0.000
C2 0.066 -1.462 0.000
H3 -0.984 -1.757 0.000
H4 0.650 -2.379 0.000
C5 0.361 -0.630 1.259
C6 0.361 -0.630 -1.259
C7 -0.347 0.727 -1.177
C8 -0.347 0.727 1.177
H9 0.040 -1.155 2.157
H10 0.040 -1.155 -2.157
H11 1.433 -0.461 1.347
H12 1.433 -0.461 -1.347
H13 -1.431 0.587 -1.214
H14 -1.431 0.587 1.214
H15 -0.066 1.368 -2.005
H16 -0.066 1.368 2.005

Atom - Atom Distances (Å)
  O1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
O12.88383.32733.85602.43362.43361.41011.41013.36073.36072.72272.72272.05382.05382.00712.0071
C22.88381.09091.08781.53791.53792.51912.51912.17882.17882.16442.16442.81332.81333.47053.4705
H33.32731.09091.74862.16022.16022.82152.82152.46232.46233.05573.05572.67792.67793.82493.8249
H43.85601.08781.74862.17522.17523.46823.46822.55412.55412.47132.47133.82213.82214.30994.3099
C52.43361.53792.16022.17522.51852.87691.53231.08893.47141.08882.82323.28802.16693.85082.1744
C62.43361.53792.16022.17522.51851.53232.87693.47141.08892.82321.08882.16693.28802.17443.8508
C71.41012.51912.82153.46822.87691.53232.35413.84822.15713.30942.14711.09362.62921.08453.2585
C81.41012.51912.82153.46821.53232.87692.35412.15713.84822.14713.30942.62921.09363.25851.0845
H93.36072.17882.46232.55411.08893.47143.84822.15714.31401.75493.83434.07022.46784.86852.5299
H103.36072.17882.46232.55413.47141.08892.15713.84824.31403.83431.75492.46784.07022.52994.8685
H112.72272.16443.05572.47131.08882.82323.30942.14711.75493.83432.69413.98303.05324.10242.4545
H122.72272.16443.05572.47132.82321.08882.14713.30943.83431.75492.69413.05323.98302.45454.1024
H132.05382.81332.67793.82213.28802.16691.09362.62924.07022.46783.98303.05322.42841.76063.5832
H142.05382.81332.67793.82212.16693.28802.62921.09362.46784.07023.05323.98302.42843.58321.7606
H152.00713.47053.82494.30993.85082.17441.08453.25854.86852.52994.10242.45451.76063.58324.0107
H162.00713.47053.82494.30992.17443.85083.25851.08452.52994.86852.45454.10243.58321.76064.0107

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 111.531 O1 C7 H13 109.583
O1 C7 H15 106.411 O1 C8 C5 111.531
O1 C8 H14 109.583 O1 C8 H16 106.411
C2 C5 C8 110.265 C2 C5 H9 110.921
C2 C5 H11 109.791 C2 C6 C7 110.265
C2 C6 H10 110.921 C2 C6 H12 109.791
H3 C2 H4 106.757 H3 C2 C5 109.343
H3 C2 C6 109.343 H4 C2 C5 110.702
H4 C2 C6 110.702 C5 C2 C6 109.928
C5 C8 H14 110.089 C5 C8 H16 111.233
C6 C7 H13 110.089 C6 C7 H15 111.233
C7 O1 C8 113.177 C7 C6 H10 109.591
C7 C6 H12 108.819 C8 C5 H9 109.591
C8 C5 H11 108.819 H9 C5 H11 107.384
H10 C6 H12 107.384 H13 C7 H15 107.863
H14 C8 H16 107.863
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.426      
2 C -0.302      
3 H 0.138      
4 H 0.179      
5 C -0.313      
6 C -0.313      
7 C -0.100      
8 C -0.100      
9 H 0.169      
10 H 0.169      
11 H 0.148      
12 H 0.148      
13 H 0.122      
14 H 0.122      
15 H 0.181      
16 H 0.181      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.470 -1.584 0.000 1.652
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.007 -0.504 0.000
y -0.504 -42.147 0.000
z 0.000 0.000 -35.423
Traceless
 xyz
x 0.778 -0.504 0.000
y -0.504 -5.432 0.000
z 0.000 0.000 4.654
Polar
3z2-r29.308
x2-y24.140
xy-0.504
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.674 -0.152 0.000
y -0.152 7.956 0.000
z 0.000 0.000 8.848


<r2> (average value of r2) Å2
<r2> 127.730
(<r2>)1/2 11.302