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

using model chemistry: PBEPBE/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-270.218539
Energy at 298.15K-270.228281
Nuclear repulsion energy239.542496
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/6-31+G**
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 3149 3113 21.99      
2 A 3128 3092 1.95      
3 A 3052 3017 30.56      
4 A 3036 3002 33.09      
5 A 2995 2961 38.76      
6 A 2983 2949 11.55      
7 A 2949 2915 54.09      
8 A 2944 2910 33.27      
9 A 1656 1637 84.16      
10 A 1453 1436 3.81      
11 A 1440 1423 6.13      
12 A 1428 1412 2.49      
13 A 1379 1363 4.34      
14 A 1348 1332 3.13      
15 A 1322 1307 1.73      
16 A 1301 1287 4.01      
17 A 1257 1243 2.50      
18 A 1234 1220 82.45      
19 A 1212 1199 11.75      
20 A 1167 1154 3.78      
21 A 1066 1053 9.29      
22 A 1062 1049 69.37      
23 A 1039 1027 9.82      
24 A 1005 994 3.51      
25 A 925 914 7.53      
26 A 891 881 1.09      
27 A 884 874 23.96      
28 A 858 848 1.77      
29 A 827 818 6.91      
30 A 736 728 5.12      
31 A 710 702 34.90      
32 A 495 489 5.04      
33 A 479 474 1.93      
34 A 434 429 14.69      
35 A 273 270 0.58      
36 A 178 176 2.67      

Unscaled Zero Point Vibrational Energy (zpe) 26146.0 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 25848.0 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 PBEPBE/6-31+G**
ABC
0.17151 0.15620 0.08911

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.660 1.861 -0.206
C2 0.892 1.091 -0.083
H3 -0.730 2.412 0.094
C4 -0.423 1.362 0.065
H5 -2.321 0.526 -0.523
H6 -1.879 0.174 1.149
C7 -1.463 0.270 0.126
H8 -0.739 -1.077 -1.426
H9 -1.465 -1.923 -0.039
C10 -0.837 -1.061 -0.326
H11 1.046 -2.151 -0.016
H12 0.484 -1.200 1.400
C13 0.552 -1.217 0.294
O14 1.452 -0.162 -0.112

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 C7 H8 H9 C10 H11 H12 C13 O14
H11.09382.47092.15914.21114.14793.52093.98424.91033.84584.06293.65113.30952.0351
C21.09382.09891.35113.29243.16862.50363.02753.82702.77223.24682.76012.36411.3727
H32.47092.09891.09372.54352.72742.26373.80564.39883.50004.89724.02763.85383.3801
C42.15911.35111.09372.15612.16921.50952.87653.44832.48973.80883.02812.76712.4228
H54.21113.29242.54352.15611.76501.10572.42692.63932.18214.33143.81403.45843.8575
H64.14793.16862.72742.16921.76501.10833.08182.44632.18813.91412.74502.92863.5777
C73.52092.50362.26371.50951.10571.10832.17942.19981.53953.49002.75262.51042.9570
H83.98423.02753.80562.87652.42693.08182.17941.77911.10472.51513.08172.15462.7137
H94.91033.82704.39883.44832.63932.44632.19981.77911.10382.52112.52852.16233.4084
C103.84582.77223.50002.48972.18212.18811.53951.10471.10382.19752.17791.52882.4691
H114.06293.24684.89723.80884.33143.91413.49002.51512.52112.19751.79611.10092.0327
H123.65112.76014.02763.02813.81402.74502.75263.08172.52852.17791.79611.10862.0743
C133.30952.36413.85382.76713.45842.92862.51042.15462.16231.52881.10091.10861.4457
O142.03511.37273.38012.42283.85753.57772.95702.71373.40842.46912.03272.07431.4457

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 123.698 H1 C2 O14 110.692
C2 C4 H3 117.918 C2 C4 C7 122.038
C2 O14 C13 113.998 H3 C4 C7 119.982
C4 C2 O14 125.609 C4 C7 H5 110.108
C4 C7 H6 110.991 C4 C7 C10 109.484
H5 C7 H6 105.728 H5 C7 C10 110.080
H6 C7 C10 110.398 C7 C10 H8 109.930
C7 C10 H9 111.588 C7 C10 C13 109.806
H8 C10 H9 107.331 H8 C10 C13 108.734
H9 C10 C13 109.381 C10 C13 H11 112.349
C10 C13 H12 110.321 C10 C13 O14 112.183
H11 C13 H12 108.761 H11 C13 O14 105.113
H12 C13 O14 107.871
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.142      
2 C -0.255      
3 H 0.144      
4 C 0.123      
5 H 0.172      
6 H 0.178      
7 C -0.467      
8 H 0.188      
9 H 0.167      
10 C -0.278      
11 H 0.163      
12 H 0.167      
13 C -0.204      
14 O -0.240      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.270 -0.684 0.268 1.467
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.645 0.802 0.182
y 0.802 -34.250 -0.601
z 0.182 -0.601 -38.616
Traceless
 xyz
x -2.213 0.802 0.182
y 0.802 4.381 -0.601
z 0.182 -0.601 -2.168
Polar
3z2-r2-4.337
x2-y2-4.396
xy0.802
xz0.182
yz-0.601


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.382 -0.284 -0.129
y -0.284 10.013 -0.042
z -0.129 -0.042 7.571


<r2> (average value of r2) Å2
<r2> 143.197
(<r2>)1/2 11.966