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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-271.730217
Energy at 298.15K-271.743105
Nuclear repulsion energy260.418075
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 B3PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3102 2987 41.27      
2 A' 3084 2969 78.19      
3 A' 3072 2958 44.48      
4 A' 3034 2921 18.30      
5 A' 3018 2906 29.35      
6 A' 2962 2852 119.05      
7 A' 1516 1460 4.68      
8 A' 1500 1444 8.39      
9 A' 1489 1433 9.29      
10 A' 1429 1375 6.21      
11 A' 1386 1334 1.74      
12 A' 1339 1289 4.90      
13 A' 1295 1247 5.74      
14 A' 1180 1136 3.19      
15 A' 1060 1020 10.36      
16 A' 1025 987 10.01      
17 A' 900 866 23.18      
18 A' 865 833 5.66      
19 A' 835 804 2.29      
20 A' 562 541 3.64      
21 A' 437 420 1.62      
22 A' 402 387 4.65      
23 A' 247 238 3.72      
24 A" 3100 2984 56.04      
25 A" 3077 2963 40.51      
26 A" 3033 2920 35.88      
27 A" 2955 2845 23.40      
28 A" 1502 1446 1.97      
29 A" 1479 1424 3.44      
30 A" 1400 1348 6.19      
31 A" 1385 1334 0.87      
32 A" 1358 1308 0.24      
33 A" 1313 1264 8.43      
34 A" 1238 1192 42.27      
35 A" 1201 1157 0.03      
36 A" 1133 1091 76.86      
37 A" 1070 1030 12.04      
38 A" 988 952 3.88      
39 A" 895 861 0.37      
40 A" 821 791 0.50      
41 A" 464 447 0.01      
42 A" 241 232 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 32196.1 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 30995.2 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 B3PW91/6-311G*
ABC
0.15657 0.15057 0.08697

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 1.423 0.000
C2 0.067 -1.461 0.000
H3 -0.990 -1.762 0.000
H4 0.653 -2.386 0.000
C5 0.356 -0.634 1.254
C6 0.356 -0.634 -1.254
C7 -0.353 0.712 -1.172
C8 -0.353 0.712 1.172
H9 0.041 -1.167 2.159
H10 0.041 -1.167 -2.159
H11 1.435 -0.459 1.343
H12 1.435 -0.459 -1.343
H13 -1.446 0.565 -1.201
H14 -1.446 0.565 1.201
H15 -0.082 1.360 -2.010
H16 -0.082 1.360 2.010

Atom - Atom Distances (Å)
  O1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
O12.88463.33503.86452.43512.43511.41521.41523.37163.37162.72052.72052.06632.06632.01222.0122
C22.88461.09881.09511.52961.52962.50462.50462.17872.17872.16322.16322.79932.79933.46653.4665
H33.33501.09881.75732.15762.15762.81102.81102.46482.46483.06293.06292.65782.65783.82203.8220
H43.86451.09511.75732.17492.17493.46193.46192.55362.55362.47612.47613.81543.81544.31394.3139
C52.43511.52962.15762.17492.50792.86351.52361.09623.46821.09682.81753.27272.16533.84932.1766
C62.43511.52962.15762.17492.50791.52362.86353.46821.09622.81751.09682.16533.27272.17663.8493
C71.41522.50462.81103.46192.86351.52362.34403.84432.15853.29992.14351.10412.61681.09273.2580
C81.41522.50462.81103.46191.52362.86352.34402.15853.84432.14353.29992.61681.10413.25801.0927
H93.37162.17872.46482.55361.09623.46823.84432.15854.31711.76393.83484.06132.47544.87562.5340
H103.37162.17872.46482.55363.46821.09622.15853.84434.31713.83481.76392.47544.06132.53404.8756
H112.72052.16323.06292.47611.09682.81753.29992.14351.76393.83482.68563.97713.06084.10412.4597
H122.72052.16323.06292.47612.81751.09682.14353.29993.83481.76392.68563.06083.97712.45974.1041
H132.06632.79932.65783.81543.27272.16531.10412.61684.06132.47543.97713.06082.40121.77443.5776
H142.06632.79932.65783.81542.16533.27272.61681.10412.47544.06133.06083.97712.40123.57761.7744
H152.01223.46653.82204.31393.84932.17661.09273.25804.87562.53404.10412.45971.77443.57764.0190
H162.01223.46653.82204.31392.17663.84933.25801.09272.53404.87562.45974.10413.57761.77444.0190

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 111.864 O1 C7 H13 109.590
O1 C7 H15 105.995 O1 C8 C5 111.864
O1 C8 H14 109.590 O1 C8 H16 105.995
C2 C5 C8 110.233 C2 C5 H9 111.065
C2 C5 H11 109.807 C2 C6 C7 110.233
C2 C6 H10 111.065 C2 C6 H12 109.807
H3 C2 H4 106.455 H3 C2 C5 109.250
H3 C2 C6 109.250 H4 C2 C5 110.834
H4 C2 C6 110.834 C5 C2 C6 110.128
C5 C8 H14 109.952 C5 C8 H16 111.539
C6 C7 H13 109.952 C6 C7 H15 111.539
C7 O1 C8 111.823 C7 C6 H10 109.886
C7 C6 H12 108.674 C8 C5 H9 109.886
C8 C5 H11 108.674 H9 C5 H11 107.095
H10 C6 H12 107.095 H13 C7 H15 107.748
H14 C8 H16 107.748
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.331      
2 C -0.455      
3 H 0.213      
4 H 0.226      
5 C -0.438      
6 C -0.438      
7 C -0.239      
8 C -0.239      
9 H 0.218      
10 H 0.218      
11 H 0.221      
12 H 0.221      
13 H 0.192      
14 H 0.192      
15 H 0.219      
16 H 0.219      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.367 -1.387 0.000 1.435
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.997 -0.336 0.000
y -0.336 -41.470 0.000
z 0.000 0.000 -35.470
Traceless
 xyz
x 0.474 -0.336 0.000
y -0.336 -4.737 0.000
z 0.000 0.000 4.263
Polar
3z2-r28.526
x2-y23.473
xy-0.336
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> 152.120
(<r2>)1/2 12.334