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All results from a given calculation for C5H8O (2H-Pyran, 3,4-dihydro-)

using model chemistry: PBEPBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-270.294192
Energy at 298.15K-270.303969
Nuclear repulsion energy240.425140
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 PBEPBE/cc-pVTZ
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 3127 3105 22.26      
2 A 3106 3085 2.65      
3 A 3030 3009 31.76      
4 A 3018 2997 34.13      
5 A 2980 2960 39.93      
6 A 2968 2947 10.06      
7 A 2933 2913 48.84      
8 A 2929 2908 30.13      
9 A 1655 1643 72.77      
10 A 1449 1439 3.87      
11 A 1433 1423 4.68      
12 A 1423 1413 2.18      
13 A 1380 1371 2.80      
14 A 1345 1336 2.14      
15 A 1318 1309 1.45      
16 A 1303 1294 3.56      
17 A 1257 1248 2.19      
18 A 1229 1221 66.46      
19 A 1210 1202 15.85      
20 A 1166 1158 3.78      
21 A 1066 1059 4.53      
22 A 1057 1049 71.40      
23 A 1037 1030 11.42      
24 A 1007 1000 2.91      
25 A 924 918 7.17      
26 A 900 894 0.83      
27 A 883 877 22.01      
28 A 857 851 1.49      
29 A 827 821 6.12      
30 A 737 732 3.90      
31 A 713 708 26.29      
32 A 496 493 5.23      
33 A 480 476 1.66      
34 A 437 434 12.21      
35 A 270 268 0.50      
36 A 177 176 2.24      

Unscaled Zero Point Vibrational Energy (zpe) 26063.4 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 25883.5 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 PBEPBE/cc-pVTZ
ABC
0.17271 0.15741 0.08975

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.650 1.857 -0.205
C2 0.888 1.086 -0.083
H3 -0.724 2.403 0.092
C4 -0.419 1.357 0.065
H5 -2.312 0.528 -0.520
H6 -1.873 0.176 1.145
C7 -1.457 0.271 0.126
H8 -0.739 -1.073 -1.420
H9 -1.461 -1.916 -0.038
C10 -0.835 -1.057 -0.324
H11 1.038 -2.146 -0.019
H12 0.480 -1.202 1.394
C13 0.549 -1.214 0.292
O14 1.448 -0.161 -0.111

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 C7 H8 H9 C10 H11 H12 C13 O14
H11.09082.45362.14494.19054.13003.50393.97084.89263.83194.05373.64503.29962.0300
C21.09082.08851.34233.27713.15532.49113.01623.81172.76083.23642.75432.35481.3676
H32.45362.08851.08982.53262.71862.25503.79134.38323.48744.87994.01853.83993.3666
C42.14491.34231.08982.14842.16241.50402.86683.43652.48123.79523.02112.75682.4128
H54.19053.27712.53262.14841.75781.10192.41852.63152.17514.31543.80183.44663.8446
H64.13003.15532.71862.16241.75781.10453.07082.43812.18093.90142.73842.92023.5665
C73.50392.49112.25501.50401.10191.10452.17182.19281.53453.47722.74462.50182.9470
H83.97083.01623.79132.86682.41853.07082.17181.77251.10082.50413.06982.14692.7076
H94.89263.81174.38323.43652.63152.43812.19281.77251.09992.51012.51592.15503.3986
C103.83192.76083.48742.48122.17512.18091.53451.10081.09992.18812.16891.52352.4627
H114.05373.23644.87993.79524.31543.90143.47722.50412.51012.18811.78861.09742.0292
H123.64502.75434.01853.02113.80182.73842.74463.06982.51592.16891.78861.10492.0704
C133.29962.35483.83992.75683.44662.92022.50182.14692.15501.52351.09741.10491.4418
O142.03001.36763.36662.41283.84463.56652.94702.70763.39862.46272.02922.07041.4418

picture of 2H-Pyran, 3,4-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 123.336 H1 C2 O14 110.826
C2 C4 H3 117.972 C2 C4 C7 122.040
C2 O14 C13 113.873 H3 C4 C7 119.919
C4 C2 O14 125.837 C4 C7 H5 110.101
C4 C7 H6 111.066 C4 C7 C10 109.488
H5 C7 H6 105.629 H5 C7 C10 110.101
H6 C7 C10 110.402 C7 C10 H8 109.909
C7 C10 H9 111.629 C7 C10 C13 109.796
H8 C10 H9 107.306 H8 C10 C13 108.725
H9 C10 C13 109.403 C10 C13 H11 112.188
C10 C13 H12 110.196 C10 C13 O14 112.274
H11 C13 H12 108.614 H11 C13 O14 105.296
H12 C13 O14 108.051
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.108      
2 C -0.010      
3 H 0.103      
4 C -0.217      
5 H 0.084      
6 H 0.085      
7 C -0.118      
8 H 0.089      
9 H 0.080      
10 C -0.173      
11 H 0.085      
12 H 0.061      
13 C 0.020      
14 O -0.199      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.071 -0.650 0.226 1.274
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.071 0.698 0.125
y 0.698 -34.237 -0.530
z 0.125 -0.530 -38.036
Traceless
 xyz
x -1.934 0.698 0.125
y 0.698 3.816 -0.530
z 0.125 -0.530 -1.882
Polar
3z2-r2-3.764
x2-y2-3.834
xy0.698
xz0.125
yz-0.530


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.160 -0.207 -0.146
y -0.207 9.908 -0.091
z -0.146 -0.091 7.072


<r2> (average value of r2) Å2
<r2> 142.092
(<r2>)1/2 11.920