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All results from a given calculation for C4H6O (Furan, 2,3-dihydro-)

using model chemistry: PBEPBE/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-231.017072
Energy at 298.15K-231.024092
Nuclear repulsion energy173.547327
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/cc-pVTZ
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 3182 3160 5.10      
2 A 3150 3128 3.14      
3 A 3037 3016 30.03      
4 A 2993 2972 33.57      
5 A 2967 2947 37.73      
6 A 2942 2921 42.16      
7 A 1629 1618 56.53      
8 A 1464 1454 0.98      
9 A 1443 1433 0.56      
10 A 1356 1347 3.42      
11 A 1275 1266 1.01      
12 A 1256 1247 8.82      
13 A 1205 1197 8.88      
14 A 1166 1158 7.26      
15 A 1127 1119 55.03      
16 A 1057 1050 37.58      
17 A 1035 1028 6.07      
18 A 981 975 3.68      
19 A 917 911 18.02      
20 A 899 893 35.71      
21 A 873 867 5.10      
22 A 820 814 1.70      
23 A 812 806 5.68      
24 A 682 677 33.72      
25 A 669 665 6.26      
26 A 445 442 19.08      
27 A 77 76 0.77      

Unscaled Zero Point Vibrational Energy (zpe) 19729.0 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 19592.8 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/cc-pVTZ
ABC
0.26927 0.25752 0.13905

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.890 2.152 0.078
C2 0.488 1.145 0.042
H3 2.282 -0.128 0.019
C4 1.204 0.016 0.009
O5 0.481 -1.145 -0.065
H6 -1.412 1.113 -1.019
H7 -1.590 1.236 0.737
C8 -0.979 0.787 -0.059
H9 -1.488 -1.285 -0.707
H10 -1.265 -1.096 1.057
C11 -0.924 -0.753 0.068

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.08522.67252.16063.32542.75452.72532.31874.25304.01863.4248
C21.08522.20021.33752.29222.17702.19321.51313.22043.02002.3653
H32.67252.20021.08812.07004.03334.16793.38754.00953.82003.2663
C42.16061.33751.08811.36913.01743.13442.31543.07372.90262.2626
O53.32542.29222.07001.36913.09683.25552.42062.07502.07551.4641
H62.75452.17704.03333.01743.09681.76991.10322.41953.03452.2139
H72.72532.19324.16793.13443.25551.76991.09982.90732.37522.2012
C82.31871.51313.38752.31542.42061.10321.09982.22992.20651.5455
H94.25303.22044.00953.07372.07502.41952.90732.22991.78791.0966
H104.01863.02003.82002.90262.07553.03452.37522.20651.78791.1006
C113.42482.36533.26632.26261.46412.21392.20121.54551.09661.1006

picture of Furan, 2,3-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 125.891 H1 C2 C8 125.544
C2 C4 H3 129.933 C2 C4 O5 115.748
C2 C8 H6 111.672 C2 C8 H7 113.196
C2 C8 C11 101.300 H3 C4 O5 114.314
C4 C2 C8 108.480 C4 O5 C11 105.942
O5 C11 C8 107.055 O5 C11 H9 107.385
O5 C11 H10 107.199 H6 C8 H7 106.913
H6 C8 C11 112.331 H7 C8 C11 111.527
C8 C11 H9 114.043 C8 C11 H10 111.899
H9 C11 H10 108.926
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.104      
2 C -0.219      
3 H 0.109      
4 C 0.015      
5 O -0.213      
6 H 0.085      
7 H 0.085      
8 C -0.139      
9 H 0.080      
10 H 0.070      
11 C 0.021      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.815 0.711 0.075 1.084
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.284 1.204 0.043
y 1.204 -31.360 -0.099
z 0.043 -0.099 -31.284
Traceless
 xyz
x 4.038 1.204 0.043
y 1.204 -2.076 -0.099
z 0.043 -0.099 -1.962
Polar
3z2-r2-3.925
x2-y24.076
xy1.204
xz0.043
yz-0.099


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.087 -0.153 0.039
y -0.153 8.023 -0.028
z 0.039 -0.028 5.398


<r2> (average value of r2) Å2
<r2> 94.921
(<r2>)1/2 9.743