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

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-231.225061
Energy at 298.15K-231.232301
Nuclear repulsion energy174.990399
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 mPW1PW91/6-311G**
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 3277 3135 6.17      
2 A 3248 3108 2.28      
3 A 3139 3003 33.43      
4 A 3094 2960 31.77      
5 A 3059 2926 44.36      
6 A 3035 2904 43.72      
7 A 1702 1628 61.86      
8 A 1521 1455 1.30      
9 A 1496 1432 0.90      
10 A 1416 1354 3.99      
11 A 1333 1275 2.08      
12 A 1308 1251 7.24      
13 A 1254 1200 10.30      
14 A 1219 1166 19.36      
15 A 1176 1126 73.75      
16 A 1107 1059 34.67      
17 A 1076 1029 5.35      
18 A 1026 981 9.47      
19 A 961 919 24.54      
20 A 950 909 32.93      
21 A 932 892 3.61      
22 A 856 819 1.42      
23 A 844 807 7.04      
24 A 728 697 42.71      
25 A 688 658 1.54      
26 A 462 442 23.22      
27 A 119 113 1.42      

Unscaled Zero Point Vibrational Energy (zpe) 20512.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 19624.4 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 mPW1PW91/6-311G**
ABC
0.27307 0.26224 0.14170

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.002 2.085 0.101
C2 0.547 1.109 0.054
H3 2.254 -0.254 0.024
C4 1.193 -0.051 0.010
O5 0.408 -1.155 -0.084
H6 -1.313 1.152 -1.050
H7 -1.534 1.323 0.689
C8 -0.929 0.831 -0.075
H9 -1.570 -1.216 -0.644
H10 -1.269 -0.988 1.092
C11 -0.950 -0.699 0.087

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.07842.65442.14653.29892.74872.71282.30934.25083.94783.3999
C21.07842.18471.32822.27162.16332.18651.50703.22062.96192.3468
H32.65442.18471.08062.05733.98214.15713.36413.99923.75433.2355
C42.14651.32821.08061.35782.97543.12822.29903.06892.84802.2400
O53.29892.27162.05731.35783.03583.24122.39292.05592.05481.4422
H62.74872.16333.98212.97543.03581.76171.09632.41713.02882.2024
H72.71282.18654.15713.12823.24121.76171.09252.86842.36082.1887
C82.30931.50703.36412.29902.39291.09631.09252.21922.18781.5378
H94.25083.22063.99923.06892.05592.41712.86842.21921.77691.0892
H103.94782.96193.75432.84802.05483.02882.36082.18781.77691.0939
C113.39992.34683.23552.24001.44222.20242.18871.53781.08921.0939

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 125.919 H1 C2 C8 125.745
C2 C4 H3 129.903 C2 C4 O5 115.498
C2 C8 H6 111.422 C2 C8 H7 113.552
C2 C8 C11 100.841 H3 C4 O5 114.592
C4 C2 C8 108.201 C4 O5 C11 106.221
O5 C11 C8 106.788 O5 C11 H9 107.797
O5 C11 H10 107.442 H6 C8 H7 107.196
H6 C8 C11 112.385 H7 C8 C11 111.511
C8 C11 H9 114.207 C8 C11 H10 111.354
H9 C11 H10 108.961
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.112      
2 C -0.267      
3 H 0.120      
4 C 0.118      
5 O -0.332      
6 H 0.139      
7 H 0.138      
8 C -0.262      
9 H 0.130      
10 H 0.130      
11 C -0.026      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.748 0.884 0.124 1.164
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.465 1.109 0.059
y 1.109 -31.278 -0.156
z 0.059 -0.156 -31.017
Traceless
 xyz
x 4.683 1.109 0.059
y 1.109 -2.537 -0.156
z 0.059 -0.156 -2.145
Polar
3z2-r2-4.291
x2-y24.813
xy1.109
xz0.059
yz-0.156


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.252 -0.230 0.046
y -0.230 7.295 -0.021
z 0.046 -0.021 4.773


<r2> (average value of r2) Å2
<r2> 93.385
(<r2>)1/2 9.664