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All results from a given calculation for C5H8O (Furan, 2,3-dihydro-5-methyl-)

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-270.480025
Energy at 298.15K-270.489188
Nuclear repulsion energy238.575116
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 mPW1PW91/6-31G*
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 3288 3118 4.16      
2 A 3187 3022 12.66      
3 A 3154 2991 39.63      
4 A 3142 2980 12.00      
5 A 3106 2946 40.47      
6 A 3079 2920 22.33      
7 A 3078 2919 42.86      
8 A 3051 2893 52.80      
9 A 1772 1681 57.49      
10 A 1554 1474 0.23      
11 A 1530 1450 0.30      
12 A 1521 1442 4.76      
13 A 1503 1425 8.30      
14 A 1452 1377 28.30      
15 A 1430 1356 5.36      
16 A 1350 1280 9.98      
17 A 1294 1227 62.10      
18 A 1277 1211 5.29      
19 A 1235 1171 29.70      
20 A 1227 1164 7.23      
21 A 1097 1040 0.64      
22 A 1079 1023 10.16      
23 A 1072 1016 47.02      
24 A 1046 992 5.05      
25 A 1006 954 13.04      
26 A 958 909 17.41      
27 A 934 886 20.77      
28 A 869 824 2.86      
29 A 741 703 26.73      
30 A 707 670 1.53      
31 A 642 609 1.11      
32 A 563 533 1.92      
33 A 335 318 2.32      
34 A 226 215 6.79      
35 A 173 164 2.24      
36 A 108 102 1.61      

Unscaled Zero Point Vibrational Energy (zpe) 26890.3 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 25500.1 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 mPW1PW91/6-31G*
ABC
0.25320 0.10973 0.08024

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.351 -0.815 0.085
H2 -1.899 -1.405 -0.653
H3 -1.638 -1.155 1.087
O4 0.049 -1.089 -0.085
C5 -1.533 0.707 -0.066
H6 -2.190 1.111 0.711
H7 -1.977 0.980 -1.033
C8 -0.106 1.171 0.046
H9 0.214 2.203 0.090
C10 2.184 0.005 0.009
H11 2.537 -0.497 -0.898
H12 2.642 0.994 0.063
H13 2.525 -0.591 0.862
C14 0.703 0.110 0.001

Atom - Atom Distances (Å)
  C1 H2 H3 O4 C5 H6 H7 C8 H9 C10 H11 H12 H13 C14
C11.09161.09581.43731.54032.19212.20532.34483.39943.63054.02294.38443.96002.2549
H21.09161.77682.05362.22182.87652.41563.21504.24554.36994.53365.18514.74623.0807
H31.09581.77682.05512.19262.36243.02762.97333.96174.13734.66884.89764.20722.8740
O41.43732.05362.05512.39313.23813.04672.26873.29972.40062.68283.32902.69681.3680
C51.54032.22182.19262.39311.09521.09851.50472.30453.78344.32444.18684.36022.3152
H62.19212.87652.36243.23811.09521.76232.18842.71194.56625.24544.87685.01503.1427
H72.20532.41563.02763.04671.09851.76232.16852.74854.39884.75064.74735.13073.0013
C82.34483.21502.97332.26871.50472.18842.16851.08072.57013.26442.75383.26971.3350
H93.39944.24553.96173.29972.30452.71192.74851.08072.95263.69592.71283.70692.1508
C103.63054.36994.13732.40063.78344.56624.39882.57012.95261.09501.09111.09481.4848
H114.02294.53364.66882.68284.32445.24544.75063.26443.69591.09501.77721.76232.1303
H124.38445.18514.89763.32904.18684.87684.74732.75382.71281.09111.77721.77852.1320
H133.96004.74624.20722.69684.36025.01505.13073.26973.70691.09481.76231.77852.1334
C142.25493.08072.87401.36802.31523.14273.00131.33502.15081.48482.13032.13202.1334

picture of Furan, 2,3-dihydro-5-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 C14 106.965 C1 C5 H6 111.436
C1 C5 H7 112.297 C1 C5 C8 100.710
H2 C1 H3 108.642 H2 C1 O4 107.815
H2 C1 C5 114.081 H3 C1 O4 107.685
H3 C1 C5 111.441 O4 C1 C5 106.919
O4 C14 C8 114.128 O4 C14 C10 114.534
C5 C8 H9 125.292 C5 C8 C14 109.089
H6 C5 H7 106.901 H6 C5 C8 113.714
H7 C5 C8 111.871 C8 C14 C10 131.332
H9 C8 C14 125.503 H11 C10 H12 108.776
H11 C10 H13 107.179 H11 C10 C14 110.415
H12 C10 H13 108.907 H12 C10 C14 110.790
H13 C10 C14 110.678
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.081      
2 H 0.177      
3 H 0.173      
4 O -0.510      
5 C -0.388      
6 H 0.177      
7 H 0.178      
8 C -0.278      
9 H 0.161      
10 C -0.592      
11 H 0.197      
12 H 0.188      
13 H 0.196      
14 C 0.402      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.385 0.670 0.126 0.784
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.684 1.222 -0.020
y 1.222 -37.017 -0.166
z -0.020 -0.166 -36.791
Traceless
 xyz
x 5.220 1.222 -0.020
y 1.222 -2.779 -0.166
z -0.020 -0.166 -2.440
Polar
3z2-r2-4.881
x2-y25.333
xy1.222
xz-0.020
yz-0.166


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


<r2> (average value of r2) Å2
<r2> 155.109
(<r2>)1/2 12.454