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

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-229.882244
Energy at 298.15K-229.889668
HF Energy-229.882244
Nuclear repulsion energy176.041593
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 HF/Def2TZVPP
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 3400 3082 9.63      
2 A 3374 3058 1.23      
3 A 3251 2946 52.18      
4 A 3206 2906 66.64      
5 A 3188 2890 25.97      
6 A 3165 2869 51.33      
7 A 1824 1653 82.76      
8 A 1654 1499 0.14      
9 A 1625 1473 0.27      
10 A 1542 1398 5.70      
11 A 1450 1315 2.96      
12 A 1430 1296 8.28      
13 A 1361 1234 3.96      
14 A 1319 1196 11.65      
15 A 1272 1153 96.19      
16 A 1192 1080 59.77      
17 A 1175 1065 8.68      
18 A 1088 987 25.96      
19 A 1063 964 2.38      
20 A 1021 926 35.52      
21 A 988 896 24.05      
22 A 914 829 3.36      
23 A 901 817 7.58      
24 A 816 739 48.07      
25 A 754 684 2.43      
26 A 496 450 21.32      
27 A 91 83 1.54      

Unscaled Zero Point Vibrational Energy (zpe) 21780.7 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 19742.0 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 HF/Def2TZVPP
ABC
0.27408 0.26717 0.14281

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.322 1.877 0.062
C2 0.719 0.996 0.030
H3 2.178 -0.587 0.023
C4 1.171 -0.230 0.009
O5 0.221 -1.187 -0.056
H6 -1.152 1.377 -0.977
H7 -1.267 1.503 0.760
C8 -0.786 0.961 -0.045
H9 -1.685 -0.930 -0.730
H10 -1.471 -0.823 1.012
C11 -1.053 -0.548 0.055

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.06772.60902.11263.25802.72982.70722.30034.18923.99933.3938
C21.06772.15331.30672.24132.15922.17531.50693.17333.01182.3503
H32.60902.15331.06882.04793.99364.09603.34453.95073.78793.2311
C42.11261.30671.06881.35012.99193.08322.29113.03232.88742.2468
O53.25802.24132.04791.35013.05143.18062.37302.03852.03421.4301
H62.72982.15923.99362.99193.05141.74521.08432.38072.98352.1863
H72.70722.17534.09603.08323.18061.74521.08282.88312.34862.1785
C82.30031.50693.34452.29112.37301.08431.08282.20372.18481.5358
H94.18923.17333.95073.03232.03852.38072.88312.20371.75871.0783
H103.99933.01183.78792.88742.03422.98352.34862.18481.75871.0803
C113.39382.35033.23112.24681.43012.18632.17851.53581.07831.0803

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 125.375 H1 C2 C8 125.766
C2 C4 H3 129.765 C2 C4 O5 115.029
C2 C8 H6 111.837 C2 C8 H7 113.259
C2 C8 C11 101.142 H3 C4 O5 115.200
C4 C2 C8 108.827 C4 O5 C11 107.790
O5 C11 C8 106.221 O5 C11 H9 107.896
O5 C11 H10 107.430 H6 C8 H7 107.281
H6 C8 C11 111.955 H7 C8 C11 111.420
C8 C11 H9 113.764 C8 C11 H10 112.088
H9 C11 H10 109.131
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.080      
2 C -0.226      
3 H 0.097      
4 C 0.144      
5 O -0.397      
6 H 0.042      
7 H 0.049      
8 C -0.021      
9 H 0.051      
10 H 0.039      
11 C 0.143      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.595 1.064 0.097 1.222
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.643 0.351 0.045
y 0.351 -31.925 -0.146
z 0.045 -0.146 -31.364
Traceless
 xyz
x 5.001 0.351 0.045
y 0.351 -2.921 -0.146
z 0.045 -0.146 -2.080
Polar
3z2-r2-4.159
x2-y25.282
xy0.351
xz0.045
yz-0.146


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.239 -0.331 0.016
y -0.331 7.528 -0.024
z 0.016 -0.024 5.332


<r2> (average value of r2) Å2
<r2> 92.916
(<r2>)1/2 9.639