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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-270.490786
Energy at 298.15K-270.499957
Nuclear repulsion energy238.631486
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 3286 3126 3.57      
2 A 3187 3032 11.87      
3 A 3147 2994 38.41      
4 A 3142 2989 10.74      
5 A 3104 2954 34.95      
6 A 3074 2925 21.46      
7 A 3070 2921 46.17      
8 A 3048 2900 52.69      
9 A 1770 1685 58.23      
10 A 1537 1463 0.38      
11 A 1512 1439 0.38      
12 A 1503 1430 3.84      
13 A 1485 1413 7.89      
14 A 1439 1370 33.73      
15 A 1417 1348 2.88      
16 A 1341 1276 9.48      
17 A 1286 1223 62.64      
18 A 1269 1208 4.31      
19 A 1229 1169 30.12      
20 A 1220 1161 4.21      
21 A 1088 1035 0.34      
22 A 1071 1019 33.69      
23 A 1066 1015 23.73      
24 A 1040 989 5.48      
25 A 1002 953 13.46      
26 A 955 909 15.69      
27 A 932 887 20.76      
28 A 865 823 2.82      
29 A 742 706 25.80      
30 A 705 671 1.36      
31 A 642 611 1.10      
32 A 562 535 1.73      
33 A 336 319 2.39      
34 A 226 215 6.78      
35 A 172 164 2.21      
36 A 109 103 1.62      

Unscaled Zero Point Vibrational Energy (zpe) 26787.1 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 25487.9 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 mPW1PW91/6-31G**
ABC
0.25329 0.10979 0.08028

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 0.086
H2 -1.901 -1.403 -0.651
H3 -1.639 -1.153 1.088
O4 0.050 -1.088 -0.085
C5 -1.532 0.707 -0.067
H6 -2.189 1.111 0.709
H7 -1.974 0.979 -1.034
C8 -0.105 1.171 0.046
H9 0.215 2.201 0.090
C10 2.184 0.005 0.009
H11 2.534 -0.498 -0.897
H12 2.641 0.993 0.063
H13 2.523 -0.591 0.861
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
C11.09141.09561.43771.53992.19102.20442.34493.39893.62984.02064.38293.95732.2550
H21.09141.77592.05542.22052.87342.41423.21554.24544.37094.53355.18504.74503.0820
H31.09561.77592.05642.19132.36053.02612.97253.96014.13694.66704.89604.20522.8741
O41.43772.05542.05642.39263.23763.04492.26883.29882.39982.68003.32722.69421.3680
C51.53992.22052.19132.39261.09441.09781.50452.30453.78214.32134.18514.35732.3146
H62.19102.87342.36053.23761.09441.76102.18762.71174.56485.24224.87515.01253.1419
H72.20442.41423.02613.04491.09781.76102.16722.74804.39624.74624.74435.12642.9994
C82.34493.21552.97252.26881.50452.18762.16721.07992.56943.26232.75263.26761.3350
H93.39894.24543.96013.29882.30452.71172.74801.07992.95083.69302.71093.70392.1495
C103.62984.37094.13692.39983.78214.56484.39622.56942.95081.09391.08991.09381.4841
H114.02064.53354.66702.68004.32135.24224.74623.26233.69301.09391.77611.76082.1279
H124.38295.18504.89603.32724.18514.87514.74432.75262.71091.08991.77611.77752.1304
H133.95734.74504.20522.69424.35735.01255.12643.26763.70391.09381.76081.77752.1311
C142.25503.08202.87411.36802.31463.14192.99941.33502.14951.48412.12792.13042.1311

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 106.951 C1 C5 H6 111.432
C1 C5 H7 112.305 C1 C5 C8 100.747
H2 C1 H3 108.592 H2 C1 O4 107.938
H2 C1 C5 114.024 H3 C1 O4 107.775
H3 C1 C5 111.381 O4 C1 C5 106.890
O4 C14 C8 114.141 O4 C14 C10 114.518
C5 C8 H9 125.378 C5 C8 C14 109.060
H6 C5 H7 106.900 H6 C5 C8 113.718
H7 C5 C8 111.829 C8 C14 C10 131.335
H9 C8 C14 125.445 H11 C10 H12 108.838
H11 C10 H13 107.197 H11 C10 C14 110.340
H12 C10 H13 108.977 H12 C10 C14 110.785
H13 C10 C14 110.612
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 0.004      
2 H 0.137      
3 H 0.135      
4 O -0.519      
5 C -0.303      
6 H 0.138      
7 H 0.140      
8 C -0.232      
9 H 0.118      
10 C -0.449      
11 H 0.158      
12 H 0.146      
13 H 0.157      
14 C 0.371      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.370 0.660 0.127 0.767
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.600 1.212 -0.021
y 1.212 -37.016 -0.172
z -0.021 -0.172 -36.791
Traceless
 xyz
x 5.304 1.212 -0.021
y 1.212 -2.821 -0.172
z -0.021 -0.172 -2.483
Polar
3z2-r2-4.966
x2-y25.417
xy1.212
xz-0.021
yz-0.172


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> 155.013
(<r2>)1/2 12.450