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

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-231.051751
Energy at 298.15K-231.058803
Nuclear repulsion energy172.819535
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 B1B95/6-31G
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 3324 3170 6.43      
2 A 3293 3140 0.28      
3 A 3170 3023 34.59      
4 A 3111 2967 40.32      
5 A 3100 2956 15.70      
6 A 3064 2922 38.78      
7 A 1709 1630 41.26      
8 A 1557 1485 1.28      
9 A 1537 1466 0.69      
10 A 1410 1344 1.70      
11 A 1337 1275 12.58      
12 A 1326 1264 8.03      
13 A 1268 1210 0.44      
14 A 1209 1153 2.43      
15 A 1181 1126 33.83      
16 A 1094 1044 0.63      
17 A 1078 1028 74.23      
18 A 1036 988 0.52      
19 A 947 903 23.27      
20 A 945 901 2.37      
21 A 908 866 35.34      
22 A 853 814 0.75      
23 A 844 805 2.56      
24 A 749 715 48.57      
25 A 705 673 3.20      
26 A 458 437 25.74      
27 A 25 24 2.81      

Unscaled Zero Point Vibrational Energy (zpe) 20617.8 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 19663.2 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 B1B95/6-31G
ABC
0.26490 0.25733 0.13724

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.108 2.042 0.000
C2 0.616 1.082 0.000
H3 2.263 -0.372 0.000
C4 1.218 -0.108 0.000
O5 0.353 -1.198 -0.000
H6 -1.356 1.342 -0.881
H7 -1.357 1.342 0.880
C8 -0.885 0.892 -0.000
H9 -1.521 -1.036 -0.889
H10 -1.520 -1.036 0.890
C11 -1.023 -0.649 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.07842.67622.15273.32652.70912.70902.30074.14484.14393.4326
C21.07842.19671.33332.29502.17622.17631.51353.13813.13742.3843
H32.67622.19671.07792.08044.10044.10093.39263.94363.94293.2978
C42.15271.33331.07791.39113.08303.08352.32883.02583.02512.3055
O53.32652.29502.08041.39113.18593.18652.42982.08112.08111.4821
H62.70912.17624.10043.08303.18591.76141.09552.38392.96962.2026
H72.70902.17634.10093.08353.18651.76141.09552.96912.38382.2026
C82.30071.51353.39262.32882.42981.09551.09552.21702.21691.5476
H94.14483.13813.94363.02582.08112.38392.96912.21701.77951.0904
H104.14393.13743.94293.02512.08112.96962.38382.21691.77951.0905
C113.43262.38433.29782.30551.48212.20262.20261.54761.09041.0905

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 126.078 H1 C2 C8 124.303
C2 C4 H3 131.000 C2 C4 O5 114.771
C2 C8 H6 112.058 C2 C8 H7 112.064
C2 C8 C11 102.313 H3 C4 O5 114.229
C4 C2 C8 109.619 C4 O5 C11 106.676
O5 C11 C8 106.620 O5 C11 H9 107.004
O5 C11 H10 107.003 H6 C8 H7 107.010
H6 C8 C11 111.744 H7 C8 C11 111.742
C8 C11 H9 113.222 C8 C11 H10 113.214
H9 C11 H10 109.363
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.159      
2 C -0.195      
3 H 0.184      
4 C 0.126      
5 O -0.530      
6 H 0.173      
7 H 0.173      
8 C -0.371      
9 H 0.179      
10 H 0.179      
11 C -0.076      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.868 1.442 0.001 1.683
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.694 1.209 0.000
y 1.209 -31.939 -0.001
z 0.000 -0.001 -30.803
Traceless
 xyz
x 5.677 1.209 0.000
y 1.209 -3.690 -0.001
z 0.000 -0.001 -1.987
Polar
3z2-r2-3.973
x2-y26.245
xy1.209
xz0.000
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.794 -0.230 0.000
y -0.230 6.923 0.000
z 0.000 0.000 4.033


<r2> (average value of r2) Å2
<r2> 95.300
(<r2>)1/2 9.762