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

using model chemistry: B1B95/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B1B95/STO-3G
 hartrees
Energy at 0K-268.292723
Energy at 298.15K-268.305267
Nuclear repulsion energy256.059592
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 B1B95/STO-3G
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' 3486 3078 4.30      
2 A' 3472 3066 0.88      
3 A' 3422 3022 5.27      
4 A' 3368 2974 0.70      
5 A' 3365 2971 3.98      
6 A' 3279 2895 22.59      
7 A' 1675 1479 0.99      
8 A' 1656 1462 1.42      
9 A' 1642 1450 2.38      
10 A' 1526 1348 8.69      
11 A' 1508 1331 0.02      
12 A' 1401 1237 0.60      
13 A' 1372 1211 4.87      
14 A' 1253 1107 1.86      
15 A' 1122 991 2.56      
16 A' 1083 956 6.48      
17 A' 968 855 3.13      
18 A' 927 819 7.20      
19 A' 888 784 0.11      
20 A' 574 507 2.27      
21 A' 462 408 0.79      
22 A' 385 340 3.76      
23 A' 249 220 2.03      
24 A" 3481 3074 0.61      
25 A" 3420 3020 1.10      
26 A" 3368 2974 2.20      
27 A" 3280 2896 10.46      
28 A" 1653 1460 0.32      
29 A" 1639 1448 0.43      
30 A" 1523 1345 2.33      
31 A" 1501 1326 12.18      
32 A" 1451 1281 7.74      
33 A" 1392 1229 3.07      
34 A" 1303 1151 9.02      
35 A" 1250 1103 0.15      
36 A" 1222 1079 17.57      
37 A" 1156 1021 3.51      
38 A" 1052 929 1.40      
39 A" 960 848 0.53      
40 A" 880 777 0.45      
41 A" 460 407 0.34      
42 A" 227 200 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 35151.2 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 31038.5 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 B1B95/STO-3G
ABC
0.15408 0.14265 0.08420

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.726 -1.310 0.000
C2 0.651 1.346 0.000
H3 1.723 1.095 0.000
H4 0.564 2.443 0.000
C5 -0.014 0.749 1.262
C6 -0.014 0.749 -1.262
C7 -0.014 -0.805 -1.174
C8 -0.014 -0.805 1.174
H9 0.524 1.062 2.170
H10 0.524 1.062 -2.170
H11 -1.052 1.106 1.341
H12 -1.052 1.106 -1.341
H13 1.038 -1.167 -1.186
H14 1.038 -1.167 1.186
H15 -0.535 -1.234 -2.051
H16 -0.535 -1.234 2.051

Atom - Atom Distances (Å)
  O1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
O12.99143.43273.96872.51742.51741.46291.46293.44923.44922.78202.78202.13082.13082.06082.0608
C22.99141.10121.10071.54631.54632.53912.53912.19212.19212.18062.18062.80542.80543.50273.5027
H33.43271.10121.77762.17492.17492.82972.82972.47972.47973.08203.08202.64452.64453.83813.8381
H43.96871.10071.77762.19052.19053.50203.50202.57252.57252.48972.48973.82923.82924.35184.3518
C52.51741.54632.17492.19052.52402.88931.55631.10073.48791.10042.82503.28172.18663.89582.1969
C62.51741.54632.17492.19052.52401.55632.88933.48791.10072.82501.10042.18663.28172.19693.8958
C71.46292.53912.82973.50202.88931.55632.34783.86752.18353.32482.18101.11252.60931.10643.2943
C81.46292.53912.82973.50201.55632.88932.34782.18353.86752.18103.32482.60931.11253.29431.1064
H93.44922.19212.47972.57251.10073.48793.86752.18354.33991.78063.84854.06172.49004.92012.5317
H103.44922.19212.47972.57253.48791.10072.18353.86754.33993.84851.78062.49004.06172.53174.9201
H112.78202.18063.08202.48971.10042.82503.32482.18101.78063.84852.68223.98993.09124.15302.4996
H122.78202.18063.08202.48972.82501.10042.18103.32483.84851.78062.68223.09123.98992.49964.1530
H132.13082.80542.64453.82923.28172.18661.11252.60934.06172.49003.98993.09122.37271.79593.5994
H142.13082.80542.64453.82922.18663.28172.60931.11252.49004.06173.09123.98992.37273.59941.7959
H152.06083.50273.83814.35183.89582.19691.10643.29434.92012.53174.15302.49961.79593.59944.1010
H162.06083.50273.83814.35182.19693.89583.29431.10642.53174.92012.49964.15303.59941.79594.1010

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 112.945 O1 C7 H13 110.927
O1 C7 H15 105.824 O1 C8 C5 112.945
O1 C8 H14 110.927 O1 C8 H16 105.824
C2 C5 C8 109.841 C2 C5 H9 110.690
C2 C5 H11 109.804 C2 C6 C7 109.841
C2 C6 H10 110.690 C2 C6 H12 109.804
H3 C2 H4 107.662 H3 C2 C5 109.312
H3 C2 C6 109.312 H4 C2 C5 110.562
H4 C2 C6 110.562 C5 C2 C6 109.396
C5 C8 H14 108.896 C5 C8 H16 110.041
C6 C7 H13 108.896 C6 C7 H15 110.041
C7 O1 C8 106.735 C7 C6 H10 109.329
C7 C6 H12 109.151 C8 C5 H9 109.329
C8 C5 H11 109.151 H9 C5 H11 107.989
H10 C6 H12 107.989 H13 C7 H15 108.072
H14 C8 H16 108.072
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.197      
2 C -0.141      
3 H 0.070      
4 H 0.074      
5 C -0.148      
6 C -0.148      
7 C -0.052      
8 C -0.052      
9 H 0.076      
10 H 0.076      
11 H 0.077      
12 H 0.077      
13 H 0.065      
14 H 0.065      
15 H 0.080      
16 H 0.080      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.944 0.871 0.000 1.284
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.887 -1.558 0.000
y -1.558 -37.203 0.000
z 0.000 0.000 -33.538
Traceless
 xyz
x -0.516 -1.558 0.000
y -1.558 -2.490 0.000
z 0.000 0.000 3.006
Polar
3z2-r26.013
x2-y21.316
xy-1.558
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.903 0.136 0.000
y 0.136 4.189 0.000
z 0.000 0.000 5.101


<r2> (average value of r2) Å2
<r2> 154.366
(<r2>)1/2 12.424