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

using model chemistry: B3PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-231.166634
Energy at 298.15K-231.173799
Nuclear repulsion energy174.084143
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 B3PW91/aug-cc-pVDZ
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 3268 3152 5.05      
2 A 3240 3126 1.16      
3 A 3130 3019 29.46      
4 A 3082 2973 29.53      
5 A 3053 2945 40.32      
6 A 3027 2920 44.14      
7 A 1686 1626 68.56      
8 A 1500 1447 1.24      
9 A 1476 1424 0.94      
10 A 1393 1344 5.51      
11 A 1315 1268 2.88      
12 A 1286 1241 5.77      
13 A 1237 1193 7.38      
14 A 1199 1156 11.84      
15 A 1157 1116 70.62      
16 A 1091 1052 34.62      
17 A 1061 1023 4.52      
18 A 1017 981 6.36      
19 A 947 913 12.84      
20 A 937 903 48.75      
21 A 906 874 5.34      
22 A 843 813 2.15      
23 A 835 806 5.44      
24 A 706 681 42.33      
25 A 688 664 5.40      
26 A 456 440 19.30      
27 A 99 96 0.95      

Unscaled Zero Point Vibrational Energy (zpe) 20316.6 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 19597.4 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 B3PW91/aug-cc-pVDZ
ABC
0.27030 0.25979 0.14009

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.007 2.097 0.087
C2 0.548 1.114 0.044
H3 2.271 -0.252 0.021
C4 1.202 -0.051 0.010
O5 0.411 -1.161 -0.072
H6 -1.339 1.174 -1.030
H7 -1.524 1.320 0.725
C8 -0.932 0.834 -0.063
H9 -1.558 -1.209 -0.690
H10 -1.303 -1.018 1.070
C11 -0.958 -0.701 0.074

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.08622.66812.15823.31552.75752.72372.31924.25594.00043.4195
C21.08622.19881.33622.28152.17192.19081.51003.21983.00322.3585
H32.66812.19881.08792.07164.02104.16783.38344.01003.80223.2602
C42.15821.33621.08791.36473.00593.13432.31153.07322.88642.2563
O53.31552.28152.07161.36473.07133.24622.40542.06462.06451.4517
H62.75752.17194.02103.00593.07131.77091.10242.41703.03552.2095
H72.72372.19084.16783.13433.24621.77091.09922.89832.37382.1982
C82.31921.51003.38342.31152.40541.10241.09922.22682.20261.5421
H94.25593.21984.01003.07322.06462.41702.89832.22681.78821.0961
H104.00043.00323.80222.88642.06453.03552.37382.20261.78821.1000
C113.41952.35853.26022.25631.45172.20952.19821.54211.09611.1000

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 125.669 H1 C2 C8 125.800
C2 C4 H3 129.918 C2 C4 O5 115.276
C2 C8 H6 111.529 C2 C8 H7 113.260
C2 C8 C11 101.195 H3 C4 O5 114.799
C4 C2 C8 108.451 C4 O5 C11 106.435
O5 C11 C8 106.887 O5 C11 H9 107.443
O5 C11 H10 107.207 H6 C8 H7 107.103
H6 C8 C11 112.273 H7 C8 C11 111.558
C8 C11 H9 114.077 C8 C11 H10 111.860
H9 C11 H10 109.028
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H -0.412      
2 C 0.590      
3 H -0.382      
4 C 0.415      
5 O -0.582      
6 H -0.223      
7 H -0.202      
8 C 0.434      
9 H -0.312      
10 H -0.301      
11 C 0.974      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.825 0.886 0.085 1.214
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.031 1.022 0.042
y 1.022 -31.571 -0.164
z 0.042 -0.164 -31.311
Traceless
 xyz
x 4.410 1.022 0.042
y 1.022 -2.400 -0.164
z 0.042 -0.164 -2.010
Polar
3z2-r2-4.019
x2-y24.540
xy1.022
xz0.042
yz-0.164


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.282 -0.185 0.034
y -0.185 8.303 -0.022
z 0.034 -0.022 6.074


<r2> (average value of r2) Å2
<r2> 94.439
(<r2>)1/2 9.718