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

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-42.091234
Energy at 298.15K-42.098264
Nuclear repulsion energy92.255369
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 B3LYP/CEP-121G
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 3244 3162 13.07      
2 A 3209 3127 1.25      
3 A 3105 3026 54.33      
4 A 3040 2963 64.65      
5 A 3029 2952 25.19      
6 A 2992 2916 60.30      
7 A 1634 1593 49.95      
8 A 1533 1494 1.68      
9 A 1516 1477 0.41      
10 A 1385 1349 0.63      
11 A 1305 1272 13.39      
12 A 1302 1268 3.48      
13 A 1239 1207 2.53      
14 A 1188 1158 3.04      
15 A 1151 1122 36.65      
16 A 1079 1051 1.72      
17 A 1042 1015 77.52      
18 A 1003 978 3.01      
19 A 917 894 27.35      
20 A 906 882 4.54      
21 A 882 859 35.47      
22 A 831 810 3.78      
23 A 823 802 2.79      
24 A 731 712 60.17      
25 A 687 669 3.21      
26 A 442 430 23.03      
27 A 43 41 2.41      

Unscaled Zero Point Vibrational Energy (zpe) 20126.3 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 19613.1 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 B3LYP/CEP-121G
ABC
0.25812 0.25084 0.13378

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.171 2.044 0.042
C2 0.660 1.090 0.021
H3 2.299 -0.408 0.010
C4 1.254 -0.125 0.005
O5 0.359 -1.218 -0.035
H6 -1.290 1.337 -0.953
H7 -1.369 1.411 0.814
C8 -0.865 0.918 -0.029
H9 -1.588 -1.059 -0.807
H10 -1.466 -0.983 0.978
C11 -1.027 -0.641 0.034

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.08302.69912.17113.36302.74722.72912.32794.23824.12253.4697
C21.08302.21981.35192.32812.19412.20181.53573.21803.11952.4164
H32.69912.21981.08282.10264.10504.17213.43084.02473.93003.3339
C42.17111.35191.08281.41323.08623.14522.36203.09933.01372.3382
O53.36302.32812.10261.41323.17683.25912.46262.10072.10121.5033
H62.74722.19414.10503.08623.17681.77031.09992.41863.02312.2257
H72.72912.20184.17213.14523.25911.77031.09862.96232.40142.2213
C82.32791.53573.43082.36202.46261.09991.09862.24422.23351.5684
H94.23823.21804.02473.09932.10072.41862.96232.24421.79021.0940
H104.12253.11953.93003.01372.10123.02312.40142.23351.79021.0959
C113.46972.41643.33392.33821.50332.22572.22131.56841.09401.0959

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 125.804 H1 C2 C8 124.577
C2 C4 H3 131.179 C2 C4 O5 114.681
C2 C8 H6 111.641 C2 C8 H7 112.345
C2 C8 C11 102.234 H3 C4 O5 114.139
C4 C2 C8 109.602 C4 O5 C11 106.549
O5 C11 C8 106.567 O5 C11 H9 106.898
O5 C11 H10 106.830 H6 C8 H7 107.259
H6 C8 C11 111.849 H7 C8 C11 111.581
C8 C11 H9 113.707 C8 C11 H10 112.721
H9 C11 H10 109.668
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.170      
2 C -0.075      
3 H 0.167      
4 C -0.091      
5 O -0.258      
6 H 0.150      
7 H 0.149      
8 C -0.371      
9 H 0.156      
10 H 0.154      
11 C -0.151      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.920 1.530 0.071 1.787
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.595 -0.281 0.021
y -0.281 7.710 0.001
z 0.021 0.001 4.899


<r2> (average value of r2) Å2
<r2> 81.851
(<r2>)1/2 9.047