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

using model chemistry: B1B95/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 B1B95/aug-cc-pVDZ
 hartrees
Energy at 0K-231.147836
Energy at 298.15K-231.155062
Nuclear repulsion energy 
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/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 3289 3151 4.99      
2 A 3261 3123 1.24      
3 A 3155 3022 28.18      
4 A 3111 2980 26.06      
5 A 3069 2940 44.34      
6 A 3048 2920 42.73      
7 A 1706 1634 69.24      
8 A 1503 1439 1.34      
9 A 1478 1416 1.11      
10 A 1402 1343 6.28      
11 A 1326 1270 2.52      
12 A 1290 1236 4.68      
13 A 1242 1190 9.03      
14 A 1206 1155 20.37      
15 A 1163 1114 71.10      
16 A 1101 1055 27.01      
17 A 1064 1019 4.11      
18 A 1028 984 9.86      
19 A 960 919 11.44      
20 A 950 910 46.76      
21 A 916 877 4.86      
22 A 849 813 3.09      
23 A 837 802 5.95      
24 A 713 683 44.12      
25 A 678 650 1.94      
26 A 457 438 19.17      
27 A 125 120 1.12      

Unscaled Zero Point Vibrational Energy (zpe) 20461.9 cm-1
Scaled (by 0.9579) Zero Point Vibrational Energy (zpe) 19600.4 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 B1B95/aug-cc-pVDZ
ABC
0.27273 0.26205 0.14173

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.992 2.094 0.108
C2 0.538 1.112 0.055
H3 2.263 -0.241 0.028
C4 1.196 -0.046 0.012
O5 0.412 -1.153 -0.090
H6 -1.314 1.137 -1.062
H7 -1.546 1.319 0.681
C8 -0.932 0.823 -0.080
H9 -1.571 -1.229 -0.631
H10 -1.251 -0.987 1.108
C11 -0.947 -0.700 0.093

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.08322.66032.15173.30432.75712.71442.31334.26123.93983.4008
C21.08322.19251.33202.27272.16302.18591.50473.22492.95212.3430
H32.66032.19251.08512.06723.98534.16783.37014.01403.75183.2434
C42.15171.33201.08511.36062.97513.13492.30093.07752.84202.2420
O53.30432.27272.06721.36063.02743.24582.39012.05682.05631.4436
H62.75712.16303.98532.97513.02741.76741.09932.41853.03642.2006
H72.71442.18594.16783.13493.24581.76741.09552.86602.36312.1865
C82.31331.50473.37012.30092.39011.09931.09552.21932.18831.5335
H94.26123.22494.01403.07752.05682.41852.86602.21931.78451.0927
H103.93982.95213.75182.84202.05633.03642.36312.18831.78451.0975
C113.40082.34303.24342.24201.44362.20062.18651.53351.09271.0975

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 125.655 H1 C2 C8 125.960
C2 C4 H3 129.926 C2 C4 O5 115.138
C2 C8 H6 111.386 C2 C8 H7 113.492
C2 C8 C11 100.921 H3 C4 O5 114.926
C4 C2 C8 108.259 C4 O5 C11 106.133
O5 C11 C8 106.765 O5 C11 H9 107.571
O5 C11 H10 107.250 H6 C8 H7 107.278
H6 C8 C11 112.365 H7 C8 C11 111.457
C8 C11 H9 114.315 C8 C11 H10 111.476
H9 C11 H10 109.130
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H -0.456      
2 C 0.601      
3 H -0.426      
4 C 0.464      
5 O -0.580      
6 H -0.271      
7 H -0.242      
8 C 0.534      
9 H -0.360      
10 H -0.348      
11 C 1.084      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.802 0.901 0.108 1.211
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 8.211 -0.183 0.044
y -0.183 8.211 -0.024
z 0.044 -0.024 6.055


<r2> (average value of r2) Å2
<r2> 93.681
(<r2>)1/2 9.679