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

using model chemistry: wB97X-D/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-268.985383
Energy at 298.15K-268.995364
HF Energy-268.985383
Nuclear repulsion energy239.587024
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 wB97X-D/3-21G*
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 3261 3091 17.69      
2 A 3235 3066 1.77      
3 A 3177 3011 25.78      
4 A 3166 3000 22.33      
5 A 3123 2960 24.00      
6 A 3109 2947 7.20      
7 A 3081 2920 35.81      
8 A 3076 2916 26.74      
9 A 1745 1654 55.27      
10 A 1562 1480 5.03      
11 A 1547 1467 7.09      
12 A 1538 1458 3.62      
13 A 1465 1389 1.89      
14 A 1420 1346 1.74      
15 A 1407 1334 2.35      
16 A 1397 1324 10.12      
17 A 1336 1266 2.46      
18 A 1314 1245 44.90      
19 A 1281 1214 14.39      
20 A 1248 1183 6.46      
21 A 1130 1071 3.94      
22 A 1119 1060 97.37      
23 A 1077 1021 10.04      
24 A 1065 1010 3.93      
25 A 1014 961 0.20      
26 A 940 891 8.08      
27 A 920 872 5.37      
28 A 893 847 19.02      
29 A 844 800 3.14      
30 A 785 744 15.03      
31 A 758 719 24.95      
32 A 523 496 7.25      
33 A 501 475 3.06      
34 A 458 435 21.79      
35 A 289 274 0.69      
36 A 171 162 5.53      

Unscaled Zero Point Vibrational Energy (zpe) 27488.8 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 26053.9 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 wB97X-D/3-21G*
ABC
0.16999 0.15727 0.08915

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.823 1.692 -0.201
C2 0.996 1.004 -0.083
H3 -0.470 2.466 0.094
C4 -0.266 1.404 0.062
H5 -2.238 0.769 -0.504
H6 -1.810 0.361 1.157
C7 -1.416 0.423 0.133
H8 -0.832 -0.972 -1.424
H9 -1.666 -1.749 -0.063
C10 -0.946 -0.970 -0.334
H11 0.793 -2.261 -0.011
H12 0.318 -1.264 1.389
C13 0.415 -1.285 0.295
O14 1.423 -0.312 -0.110

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 C7 H8 H9 C10 H11 H12 C13 O14
H11.08202.43822.12534.17584.10053.49483.95524.90173.84304.08943.67793.32982.0448
C21.08202.07851.33233.27033.13472.49073.00773.82912.78043.27222.78702.39121.3831
H32.43822.07851.08232.52242.71262.25223.77594.38403.49564.89464.02643.85923.3678
C42.12531.33231.08232.14772.16081.51322.85933.45142.50113.81593.03592.78322.4137
H54.17583.27032.52242.14771.76281.09652.42022.61962.17414.31503.77503.44933.8381
H64.10053.13472.71262.16081.76281.09843.06492.44152.17823.87562.68772.89883.5372
C73.49482.49072.25221.51321.09651.09842.17072.19461.54313.47952.72532.50882.9428
H83.95523.00773.77592.85932.42023.06492.17071.77401.09502.50963.05252.14632.6927
H94.90173.82914.38403.45142.61962.44152.19461.77401.09452.51252.50592.16173.4072
C103.84302.78043.49562.50112.17412.17821.54311.09501.09452.18972.15691.53162.4689
H114.08943.27224.89463.81594.31503.87563.47952.50962.51252.18971.78361.09132.0514
H123.67792.78704.02643.03593.77502.68772.72533.05252.50592.15691.78361.09832.0913
C133.32982.39123.85922.78323.44932.89882.50882.14632.16171.53161.09131.09831.4586
O142.04481.38313.36782.41373.83813.53722.94282.69273.40722.46892.05142.09131.4586

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 123.025 H1 C2 O14 111.511
C2 C4 H3 118.453 C2 C4 C7 122.042
C2 O14 C13 114.565 H3 C4 C7 119.466
C4 C2 O14 125.464 C4 C7 H5 109.733
C4 C7 H6 110.659 C4 C7 C10 109.836
H5 C7 H6 106.862 H5 C7 C10 109.748
H6 C7 C10 109.956 C7 C10 H8 109.568
C7 C10 H9 111.482 C7 C10 C13 109.363
H8 C10 H9 108.236 H8 C10 C13 108.454
H9 C10 C13 109.681 C10 C13 H11 112.107
C10 C13 H12 109.089 C10 C13 O14 111.290
H11 C13 H12 109.097 H11 C13 O14 106.235
H12 C13 O14 108.937
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.237      
2 C 0.079      
3 H 0.210      
4 C -0.276      
5 H 0.225      
6 H 0.221      
7 C -0.449      
8 H 0.236      
9 H 0.217      
10 C -0.470      
11 H 0.234      
12 H 0.218      
13 C -0.160      
14 O -0.523      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.385 -0.482 0.324 1.502
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.996 1.186 0.124
y 1.186 -32.630 -0.665
z 0.124 -0.665 -37.573
Traceless
 xyz
x -2.895 1.186 0.124
y 1.186 5.155 -0.665
z 0.124 -0.665 -2.260
Polar
3z2-r2-4.520
x2-y2-5.366
xy1.186
xz0.124
yz-0.665


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.177 -0.312 -0.269
y -0.312 8.012 -0.123
z -0.269 -0.123 5.096


<r2> (average value of r2) Å2
<r2> 142.296
(<r2>)1/2 11.929