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

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-50.235185
Energy at 298.15K-50.247919
Nuclear repulsion energy144.081859
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 B3LYP/CEP-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' 3099 2993 115.74      
2 A' 3090 2984 66.79      
3 A' 3071 2965 50.39      
4 A' 3037 2932 14.85      
5 A' 3024 2920 34.58      
6 A' 2976 2874 133.50      
7 A' 1511 1459 3.54      
8 A' 1496 1445 5.30      
9 A' 1478 1428 8.84      
10 A' 1420 1372 11.63      
11 A' 1371 1324 0.51      
12 A' 1316 1271 2.61      
13 A' 1273 1229 4.89      
14 A' 1161 1122 2.58      
15 A' 1039 1003 11.93      
16 A' 1009 974 9.66      
17 A' 879 849 22.48      
18 A' 842 813 6.69      
19 A' 813 786 2.01      
20 A' 549 530 3.67      
21 A' 427 412 1.31      
22 A' 393 380 4.69      
23 A' 242 234 4.18      
24 A" 3093 2987 37.56      
25 A" 3080 2975 64.15      
26 A" 3035 2931 68.49      
27 A" 2971 2869 30.88      
28 A" 1496 1445 0.25      
29 A" 1471 1421 2.58      
30 A" 1392 1344 9.69      
31 A" 1376 1329 0.38      
32 A" 1341 1295 0.07      
33 A" 1288 1244 8.52      
34 A" 1217 1176 39.19      
35 A" 1180 1140 0.72      
36 A" 1111 1073 76.78      
37 A" 1050 1014 13.21      
38 A" 967 934 5.85      
39 A" 877 847 0.32      
40 A" 801 774 0.06      
41 A" 451 436 0.01      
42 A" 234 225 0.66      

Unscaled Zero Point Vibrational Energy (zpe) 31972.8 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 30876.1 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 B3LYP/CEP-31G*
ABC
0.15294 0.14638 0.08481

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 1.453 0.000
C2 0.065 -1.476 0.000
H3 -1.004 -1.765 0.000
H4 0.653 -2.411 0.000
C5 0.371 -0.637 1.267
C6 0.371 -0.637 -1.267
C7 -0.354 0.727 -1.187
C8 -0.354 0.727 1.187
H9 0.050 -1.170 2.181
H10 0.050 -1.170 -2.181
H11 1.459 -0.459 1.345
H12 1.459 -0.459 -1.345
H13 -1.455 0.571 -1.215
H14 -1.455 0.571 1.215
H15 -0.078 1.378 -2.033
H16 -0.078 1.378 2.033

Atom - Atom Distances (Å)
  O1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
O12.92943.37033.91812.47162.47161.43581.43583.41163.41162.75592.75592.09072.09072.03622.0362
C22.92941.10701.10431.55031.55032.53762.53762.20262.20262.18812.18812.82472.82473.50673.5067
H33.37031.10701.77832.18372.18372.83592.83592.49462.49463.09523.09522.67162.67163.85563.8556
H43.91811.10431.77832.19802.19803.50283.50282.58062.58062.50362.50363.84883.84884.36104.3610
C52.47161.55032.18372.19802.53402.90011.54681.10603.50391.10492.83543.31022.19053.89242.2014
C62.47161.55032.18372.19802.53401.54682.90013.50391.10602.83541.10492.19053.31022.20143.8924
C71.43582.53762.83593.50282.90011.54682.37493.88742.17973.33322.17251.11272.64771.10213.2974
C81.43582.53762.83593.50281.54682.90012.37492.17973.88742.17253.33322.64771.11273.29741.1021
H93.41162.20262.49462.58061.10603.50393.88742.17974.36241.78553.86354.10322.49664.92642.5551
H103.41162.20262.49462.58063.50391.10602.17973.88744.36243.86351.78552.49664.10322.55514.9264
H112.75592.18813.09522.50361.10492.83543.33322.17251.78553.86352.69084.01403.09394.14142.4917
H122.75592.18813.09522.50362.83541.10492.17253.33323.86351.78552.69083.09394.01402.49174.1414
H132.09072.82472.67163.84883.31022.19051.11272.64774.10322.49664.01403.09392.43061.79353.6195
H142.09072.82472.67163.84882.19053.31022.64771.11272.49664.10323.09394.01402.43063.61951.7935
H152.03623.50673.85564.36103.89242.20141.10213.29744.92642.55514.14142.49171.79353.61954.0667
H162.03623.50673.85564.36102.20143.89243.29741.10212.55514.92642.49174.14143.61951.79354.0667

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 111.872 O1 C7 H13 109.596
O1 C7 H15 105.958 O1 C8 C5 111.872
O1 C8 H14 109.596 O1 C8 H16 105.958
C2 C5 C8 110.038 C2 C5 H9 110.922
C2 C5 H11 109.851 C2 C6 C7 110.038
C2 C6 H10 110.922 C2 C6 H12 109.851
H3 C2 H4 107.066 H3 C2 C5 109.391
H3 C2 C6 109.391 H4 C2 C5 110.664
H4 C2 C6 110.664 C5 C2 C6 109.616
C5 C8 H14 109.828 C5 C8 H16 111.304
C6 C7 H13 109.828 C6 C7 H15 111.304
C7 O1 C8 111.594 C7 C6 H10 109.377
C7 C6 H12 108.880 C8 C5 H9 109.377
C8 C5 H11 108.880 H9 C5 H11 107.719
H10 C6 H12 107.719 H13 C7 H15 108.151
H14 C8 H16 108.151
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.199      
2 C -0.240      
3 H 0.118      
4 H 0.176      
5 C -0.232      
6 C -0.232      
7 C -0.304      
8 C -0.304      
9 H 0.156      
10 H 0.156      
11 H 0.130      
12 H 0.130      
13 H 0.113      
14 H 0.113      
15 H 0.211      
16 H 0.211      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.467 -1.645 0.000 1.710
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.951 -0.306 0.000
y -0.306 -41.518 0.000
z 0.000 0.000 -34.796
Traceless
 xyz
x 1.206 -0.306 0.000
y -0.306 -5.644 0.000
z 0.000 0.000 4.438
Polar
3z2-r28.876
x2-y24.566
xy-0.306
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.144 -0.303 0.000
y -0.303 8.022 0.000
z 0.000 0.000 8.813


<r2> (average value of r2) Å2
<r2> 129.511
(<r2>)1/2 11.380