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

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-230.939969
Energy at 298.15K-230.947043
Nuclear repulsion energy173.220832
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/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 3205 3161 5.77      
2 A 3172 3128 4.28      
3 A 3056 3014 32.29      
4 A 3012 2971 29.28      
5 A 2974 2933 45.40      
6 A 2951 2911 44.43      
7 A 1648 1625 52.98      
8 A 1477 1456 0.22      
9 A 1455 1435 0.11      
10 A 1369 1350 3.21      
11 A 1288 1271 2.60      
12 A 1263 1246 5.60      
13 A 1207 1191 10.76      
14 A 1174 1158 13.19      
15 A 1136 1121 52.98      
16 A 1068 1053 33.25      
17 A 1037 1023 5.35      
18 A 989 975 4.28      
19 A 923 911 15.08      
20 A 914 901 32.19      
21 A 866 854 4.36      
22 A 825 814 2.31      
23 A 815 804 5.76      
24 A 685 676 29.03      
25 A 661 652 2.42      
26 A 440 434 21.17      
27 A 119 118 1.18      

Unscaled Zero Point Vibrational Energy (zpe) 19864.9 cm-1
Scaled (by 0.9863) 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/6-31G**
ABC
0.26878 0.25602 0.13884

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.800 2.194 0.099
C2 0.440 1.168 0.055
H3 2.289 -0.044 0.020
C4 1.203 0.062 0.010
O5 0.524 -1.127 -0.082
H6 -1.432 1.036 -1.058
H7 -1.670 1.182 0.696
C8 -1.010 0.747 -0.075
H9 -1.459 -1.369 -0.655
H10 -1.186 -1.114 1.099
C11 -0.889 -0.789 0.086

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.08852.68992.17153.33772.76752.73492.32444.28613.98663.4277
C21.08852.21161.34422.30072.18162.20461.51583.24792.99042.3652
H32.68992.21161.09142.07334.02174.19943.39464.03263.79303.2647
C42.17151.34421.09141.37283.00503.15882.31863.09512.87752.2597
O53.33772.30072.07331.37283.07523.27882.42222.07862.07831.4625
H62.76752.18164.02173.00503.07521.77561.10772.43913.05602.2208
H72.73492.20464.19943.15883.27881.77561.10372.89472.38172.2059
C82.32441.51583.39462.31862.42221.10771.10372.23972.20801.5487
H94.28613.24794.03263.09512.07862.43912.89472.23971.79361.1006
H103.98662.99043.79302.87752.07833.05602.38172.20801.79361.1054
C113.42772.36523.26472.25971.46252.22082.20591.54871.10061.1054

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 126.080 H1 C2 C8 125.579
C2 C4 H3 130.184 C2 C4 O5 115.723
C2 C8 H6 111.575 C2 C8 H7 113.689
C2 C8 C11 101.025 H3 C4 O5 114.088
C4 C2 C8 108.177 C4 O5 C11 105.644
O5 C11 C8 107.070 O5 C11 H9 107.544
O5 C11 H10 107.249 H6 C8 H7 106.829
H6 C8 C11 112.385 H7 C8 C11 111.442
C8 C11 H9 114.367 C8 C11 H10 111.498
H9 C11 H10 108.791
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.099      
2 C -0.168      
3 H 0.113      
4 C 0.158      
5 O -0.432      
6 H 0.129      
7 H 0.127      
8 C -0.273      
9 H 0.128      
10 H 0.127      
11 C -0.007      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.813 0.720 0.115 1.091
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.695 1.450 0.071
y 1.450 -30.641 -0.138
z 0.071 -0.138 -30.754
Traceless
 xyz
x 4.003 1.450 0.071
y 1.450 -1.916 -0.138
z 0.071 -0.138 -2.086
Polar
3z2-r2-4.173
x2-y23.946
xy1.450
xz0.071
yz-0.138


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.276 -0.153 0.052
y -0.153 7.181 0.004
z 0.052 0.004 4.434


<r2> (average value of r2) Å2
<r2> 94.759
(<r2>)1/2 9.734