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

using model chemistry: BLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/6-31G*
 hartrees
Energy at 0K-270.417535
Energy at 298.15K-270.427255
HF Energy-270.417535
Nuclear repulsion energy238.489043
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 BLYP/6-31G*
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 3129 3104 34.56      
2 A 3106 3081 5.56      
3 A 3034 3010 43.59      
4 A 3013 2989 46.06      
5 A 2976 2952 45.63      
6 A 2961 2937 20.43      
7 A 2938 2914 54.39      
8 A 2922 2898 39.81      
9 A 1661 1647 63.90      
10 A 1492 1479 0.70      
11 A 1478 1467 1.22      
12 A 1470 1458 1.50      
13 A 1405 1393 3.31      
14 A 1371 1360 6.43      
15 A 1344 1333 2.14      
16 A 1327 1316 5.16      
17 A 1272 1261 3.08      
18 A 1241 1231 50.46      
19 A 1220 1210 20.97      
20 A 1184 1174 3.86      
21 A 1083 1074 3.43      
22 A 1058 1049 76.54      
23 A 1025 1016 17.85      
24 A 1013 1005 1.70      
25 A 911 904 6.51      
26 A 892 885 0.77      
27 A 876 869 8.50      
28 A 862 855 10.81      
29 A 813 806 7.43      
30 A 742 736 2.90      
31 A 717 711 18.62      
32 A 496 492 3.54      
33 A 481 478 1.76      
34 A 430 427 13.78      
35 A 273 271 0.59      
36 A 177 175 2.70      

Unscaled Zero Point Vibrational Energy (zpe) 26195.3 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 25983.1 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 BLYP/6-31G*
ABC
0.16946 0.15508 0.08812

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.682 1.852 -0.184
C2 0.904 1.090 -0.079
H3 -0.715 2.426 0.096
C4 -0.409 1.377 0.060
H5 -2.321 0.544 -0.529
H6 -1.885 0.205 1.146
C7 -1.468 0.286 0.124
H8 -0.766 -1.101 -1.416
H9 -1.488 -1.918 -0.013
C10 -0.853 -1.069 -0.316
H11 1.036 -2.166 -0.025
H12 0.489 -1.227 1.397
C13 0.556 -1.226 0.291
O14 1.447 -0.171 -0.118

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 C7 H8 H9 C10 H11 H12 C13 O14
H11.09412.48132.15814.22594.14833.53144.02884.92953.87014.07263.66163.31252.0379
C21.09412.10671.35123.30223.17262.51303.06203.84462.79383.25892.77892.37181.3736
H32.48132.10671.09322.55182.72052.26823.83754.41393.52164.91574.06063.87233.3862
C42.15811.35121.09322.16762.17561.52192.90613.46872.51433.82713.06232.78632.4235
H54.22593.30222.55182.16761.76411.10482.43102.65022.19124.34363.83993.47633.8575
H64.14833.17262.72052.17561.76411.10733.08582.45182.19703.94042.78432.95663.5840
C73.53142.51302.26821.52191.10481.10732.18792.20911.55173.50782.78252.53252.9607
H84.02883.06203.83752.90612.43103.08582.18791.77721.10352.51293.08242.16212.7286
H94.92953.84464.41393.46872.65022.45182.20911.77721.10342.53652.52492.17953.4179
C103.87012.79383.52162.51432.19122.19701.55171.10351.10342.20382.18191.54232.4772
H114.07263.25894.91573.82714.34363.94043.50782.51292.53652.20381.78921.10092.0387
H123.66162.77894.06063.06233.83992.78432.78253.08242.52492.18191.78921.10832.0808
C133.31252.37183.87232.78633.47632.95662.53252.16212.17951.54231.10091.10831.4407
O142.03791.37363.38622.42353.85753.58402.96072.72863.41792.47722.03872.08081.4407

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 123.566 H1 C2 O14 110.837
C2 C4 H3 118.673 C2 C4 C7 121.897
C2 O14 C13 114.843 H3 C4 C7 119.404
C4 C2 O14 125.595 C4 C7 H5 110.214
C4 C7 H6 110.695 C4 C7 C10 109.772
H5 C7 H6 105.781 H5 C7 C10 110.004
H6 C7 C10 110.311 C7 C10 H8 109.825
C7 C10 H9 111.496 C7 C10 C13 109.870
H8 C10 H9 107.278 H8 C10 C13 108.469
H9 C10 C13 109.823 C10 C13 H11 111.894
C10 C13 H12 109.727 C10 C13 O14 112.243
H11 C13 H12 108.172 H11 C13 O14 105.897
H12 C13 O14 108.739
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.112      
2 C 0.109      
3 H 0.097      
4 C -0.132      
5 H 0.126      
6 H 0.126      
7 C -0.258      
8 H 0.137      
9 H 0.119      
10 C -0.254      
11 H 0.131      
12 H 0.126      
13 C -0.023      
14 O -0.418      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.070 -0.568 0.251 1.238
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.811 0.673 0.178
y 0.673 -33.666 -0.482
z 0.178 -0.482 -37.401
Traceless
 xyz
x -2.278 0.673 0.178
y 0.673 3.940 -0.482
z 0.178 -0.482 -1.663
Polar
3z2-r2-3.325
x2-y2-4.145
xy0.673
xz0.178
yz-0.482


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.098 -0.248 -0.229
y -0.248 8.902 -0.128
z -0.229 -0.128 5.806


<r2> (average value of r2) Å2
<r2> 143.834
(<r2>)1/2 11.993