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

using model chemistry: HF/SDD

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/SDD
 hartrees
Energy at 0K-268.755333
Energy at 298.15K-268.765556
Nuclear repulsion energy240.170555
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/SDD
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 3448 3105 29.58      
2 A 3393 3055 10.80      
3 A 3338 3006 53.24      
4 A 3280 2954 87.55      
5 A 3249 2926 48.60      
6 A 3234 2912 60.32      
7 A 3223 2902 36.03      
8 A 3198 2879 58.74      
9 A 1845 1661 80.85      
10 A 1662 1497 3.16      
11 A 1647 1483 5.08      
12 A 1638 1475 5.25      
13 A 1552 1397 1.22      
14 A 1527 1375 4.59      
15 A 1508 1358 0.10      
16 A 1491 1343 10.16      
17 A 1406 1266 4.61      
18 A 1385 1247 81.95      
19 A 1365 1229 28.29      
20 A 1322 1190 3.36      
21 A 1223 1101 8.83      
22 A 1192 1074 118.82      
23 A 1165 1049 7.19      
24 A 1122 1011 6.13      
25 A 1105 995 0.25      
26 A 1002 902 8.89      
27 A 984 886 7.77      
28 A 945 851 40.31      
29 A 887 798 8.33      
30 A 847 763 36.92      
31 A 807 727 12.07      
32 A 550 495 11.14      
33 A 530 477 4.73      
34 A 484 436 21.87      
35 A 288 259 0.97      
36 A 181 163 8.63      

Unscaled Zero Point Vibrational Energy (zpe) 29012.8 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 26123.1 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 HF/SDD
ABC
0.16867 0.15959 0.08904

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.960 1.530 -0.182
C2 1.079 0.932 -0.078
H3 -0.278 2.490 0.078
C4 -0.151 1.426 0.052
H5 -2.164 0.938 -0.489
H6 -1.761 0.523 1.151
C7 -1.375 0.535 0.135
H8 -0.951 -0.928 -1.400
H9 -1.795 -1.596 -0.021
C10 -1.024 -0.895 -0.319
H11 0.630 -2.296 -0.075
H12 0.268 -1.347 1.363
C13 0.318 -1.328 0.280
O14 1.375 -0.417 -0.106

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 C7 H8 H9 C10 H11 H12 C13 O14
H11.06952.44902.12634.17764.07873.49403.99914.88833.84704.05173.67783.32772.0340
C21.06952.07231.33203.26943.12182.49473.05373.82822.79593.25902.81592.41111.3811
H32.44902.07231.07232.50802.68702.24223.78414.36013.48904.87394.08323.86943.3492
C42.12631.33201.07232.14102.14841.51562.87833.44102.50693.80493.09562.80252.3977
H54.17763.26942.50802.14101.73891.08432.40462.60332.16554.29363.81643.44763.8090
H64.07873.12182.68702.14841.73891.08673.04422.42242.17143.89472.76752.91693.5070
C73.49402.49472.24221.51561.08431.08672.16252.17831.54113.47532.78332.52122.9198
H83.99913.05373.78412.87832.40463.04422.16251.74891.08392.47463.04832.14252.7100
H94.88833.82824.36013.44102.60332.42242.17831.74891.08392.52412.49662.15113.3832
C103.84702.79593.48902.50692.16552.17141.54111.08391.08392.18082.16791.53152.4551
H114.05173.25904.87393.80494.29363.89473.47532.47462.52412.18081.76101.07742.0216
H123.67782.81594.08323.09563.81642.76752.78333.04832.49662.16791.76101.08462.0612
C133.32772.41113.86942.80253.44762.91692.52122.14252.15111.53151.07741.08461.4475
O142.03401.38113.34922.39773.80903.50702.91982.71003.38322.45512.02162.06121.4475

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 124.244 H1 C2 O14 111.569
C2 C4 H3 118.669 C2 C4 C7 122.218
C2 O14 C13 116.922 H3 C4 C7 119.101
C4 C2 O14 124.186 C4 C7 H5 109.760
C4 C7 H6 110.206 C4 C7 C10 110.195
H5 C7 H6 106.448 H5 C7 C10 109.920
H6 C7 C10 110.244 C7 C10 H8 109.704
C7 C10 H9 110.962 C7 C10 C13 110.278
H8 C10 H9 107.561 H8 C10 C13 108.796
H9 C10 C13 109.474 C10 C13 H11 112.244
C10 C13 H12 110.764 C10 C13 O14 110.968
H11 C13 H12 109.076 H11 C13 O14 105.448
H12 C13 O14 108.127
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.218      
2 C 0.041      
3 H 0.200      
4 C -0.262      
5 H 0.187      
6 H 0.178      
7 C -0.319      
8 H 0.189      
9 H 0.181      
10 C -0.369      
11 H 0.193      
12 H 0.167      
13 C -0.104      
14 O -0.501      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.975 -0.100 0.463 2.031
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.245 2.333 0.257
y 2.333 -33.862 -0.715
z 0.257 -0.715 -38.539
Traceless
 xyz
x -3.044 2.333 0.257
y 2.333 5.030 -0.715
z 0.257 -0.715 -1.986
Polar
3z2-r2-3.971
x2-y2-5.382
xy2.333
xz0.257
yz-0.715


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.378 -0.482 -0.267
y -0.482 7.806 -0.021
z -0.267 -0.021 5.400


<r2> (average value of r2) Å2
<r2> 142.869
(<r2>)1/2 11.953