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All results from a given calculation for C5H10O (2H-Pyran, tetrahydro-)

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-269.935952
Energy at 298.15K-269.948638
Nuclear repulsion energy256.193513
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/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' 3044 3016 64.75      
2 A' 3035 3008 14.10      
3 A' 3022 2995 29.63      
4 A' 2983 2956 8.05      
5 A' 2965 2938 20.72      
6 A' 2896 2870 93.79      
7 A' 1501 1487 9.46      
8 A' 1486 1473 2.57      
9 A' 1483 1470 15.03      
10 A' 1388 1376 0.17      
11 A' 1356 1344 2.10      
12 A' 1284 1273 0.52      
13 A' 1276 1264 4.59      
14 A' 1143 1133 1.11      
15 A' 1027 1018 5.09      
16 A' 996 987 6.12      
17 A' 853 846 9.41      
18 A' 841 834 10.89      
19 A' 796 788 3.51      
20 A' 528 523 3.34      
21 A' 422 418 1.73      
22 A' 381 378 5.48      
23 A' 242 239 4.07      
24 A" 3037 3010 4.50      
25 A" 3031 3004 55.81      
26 A" 2983 2956 28.59      
27 A" 2890 2864 18.58      
28 A" 1486 1473 0.47      
29 A" 1472 1458 4.34      
30 A" 1356 1343 0.00      
31 A" 1354 1342 1.02      
32 A" 1339 1327 10.56      
33 A" 1292 1280 3.62      
34 A" 1191 1180 9.16      
35 A" 1161 1150 7.40      
36 A" 1061 1052 1.93      
37 A" 1027 1018 71.60      
38 A" 976 968 5.32      
39 A" 859 851 0.48      
40 A" 799 791 0.08      
41 A" 441 437 0.08      
42 A" 228 226 0.67      

Unscaled Zero Point Vibrational Energy (zpe) 31465.8 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 31179.5 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/3-21G
ABC
0.15153 0.14568 0.08461

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.719 -1.284 0.000
C2 0.667 1.319 0.000
H3 1.735 1.019 0.000
H4 0.624 2.423 0.000
C5 -0.018 0.744 1.265
C6 -0.018 0.744 -1.265
C7 -0.018 -0.796 -1.199
C8 -0.018 -0.796 1.199
H9 0.502 1.077 2.182
H10 0.502 1.077 -2.182
H11 -1.066 1.095 1.307
H12 -1.066 1.095 -1.307
H13 1.035 -1.161 -1.210
H14 1.035 -1.161 1.210
H15 -0.561 -1.237 -2.052
H16 -0.561 -1.237 2.052

Atom - Atom Distances (Å)
  O1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
O12.94833.36513.94222.49042.49041.47211.47213.43893.43892.73602.73602.13392.13392.05822.0582
C22.94831.10891.10501.54891.54892.52592.52592.20172.20172.18202.18202.78312.78313.50023.5002
H33.36511.10891.78982.17902.17902.79422.79422.50692.50693.09153.09152.58972.58973.81763.8176
H43.94221.10501.78982.19782.19783.49473.49472.56672.56672.51542.51543.80443.80444.36024.3602
C52.49041.54892.17902.19782.52942.90581.54161.10613.50181.10572.79893.29552.17683.90122.2001
C62.49041.54892.17902.19782.52941.54162.90583.50181.10612.79891.10572.17683.29552.20013.9012
C71.47212.52592.79423.49472.90581.54162.39873.90062.17853.30982.16441.11402.65451.10283.3255
C81.47212.52592.79423.49471.54162.90582.39872.17853.90062.16443.30982.65451.11403.32551.1028
H93.43892.20172.50692.56671.10613.50183.90062.17854.36441.79603.82534.09852.49714.94102.5504
H103.43892.20172.50692.56673.50181.10612.17853.90064.36443.82531.79602.49714.09852.55044.9410
H112.73602.18203.09152.51541.10572.79893.30982.16441.79603.82532.61383.97913.08344.11982.4996
H122.73602.18203.09152.51542.79891.10572.16443.30983.82531.79602.61383.08343.97912.49964.1198
H132.13392.78312.58973.80443.29552.17681.11402.65454.09852.49713.97913.08342.42011.80583.6320
H142.13392.78312.58973.80442.17683.29552.65451.11402.49714.09853.08343.97912.42013.63201.8058
H152.05823.50023.81764.36023.90122.20011.10283.32554.94102.55044.11982.49961.80583.63204.1033
H162.05823.50023.81764.36022.20013.90123.32551.10282.55044.94102.49964.11983.63201.80584.1033

picture of 2H-Pyran, tetrahydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C7 C6 111.435 O1 C7 H13 110.439
O1 C7 H15 105.235 O1 C8 C5 111.435
O1 C8 H14 110.439 O1 C8 H16 105.235
C2 C5 C8 109.636 C2 C5 H9 110.947
C2 C5 H11 109.428 C2 C6 C7 109.636
C2 C6 H10 110.947 C2 C6 H12 109.428
H3 C2 H4 107.889 H3 C2 C5 109.013
H3 C2 C6 109.013 H4 C2 C5 110.701
H4 C2 C6 110.701 C5 C2 C6 109.477
C5 C8 H14 109.049 C5 C8 H16 111.527
C6 C7 H13 109.049 C6 C7 H15 111.527
C7 O1 C8 109.124 C7 C6 H10 109.631
C7 C6 H12 108.572 C8 C5 H9 109.631
C8 C5 H11 108.572 H9 C5 H11 108.583
H10 C6 H12 108.583 H13 C7 H15 109.096
H14 C8 H16 109.096
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.420      
2 C -0.403      
3 H 0.198      
4 H 0.207      
5 C -0.421      
6 C -0.421      
7 C -0.182      
8 C -0.182      
9 H 0.199      
10 H 0.199      
11 H 0.214      
12 H 0.214      
13 H 0.183      
14 H 0.183      
15 H 0.216      
16 H 0.216      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.045 1.064 0.000 1.491
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.076 -1.710 0.000
y -1.710 -40.252 0.000
z 0.000 0.000 -35.056
Traceless
 xyz
x -1.422 -1.710 0.000
y -1.710 -3.186 0.000
z 0.000 0.000 4.608
Polar
3z2-r29.216
x2-y21.175
xy-1.710
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.144 0.130 0.000
y 0.130 7.652 0.000
z 0.000 0.000 8.833


<r2> (average value of r2) Å2
<r2> 155.560
(<r2>)1/2 12.472