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All results from a given calculation for C4H6O (Furan, 2,5-dihydro-)

using model chemistry: B97D3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/6-31+G**
 hartrees
Energy at 0K-231.085549
Energy at 298.15K-231.092546
HF Energy-231.085549
Nuclear repulsion energy172.975312
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 B97D3/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3186 3131 13.87      
2 A1 2934 2884 7.31      
3 A1 1647 1619 0.53      
4 A1 1492 1466 2.12      
5 A1 1358 1334 5.86      
6 A1 1095 1076 1.34      
7 A1 971 955 6.82      
8 A1 872 857 24.36      
9 A1 735 723 6.32      
10 A2 2950 2899 0.00      
11 A2 1192 1172 0.00      
12 A2 1030 1013 0.00      
13 A2 910 894 0.00      
14 A2 379 373 0.00      
15 B1 2951 2900 107.86      
16 B1 1143 1124 4.11      
17 B1 998 981 17.42      
18 B1 649 638 43.40      
19 B1 85 83 9.45      
20 B2 3163 3108 6.01      
21 B2 2928 2877 182.55      
22 B2 1482 1456 2.02      
23 B2 1342 1319 2.64      
24 B2 1297 1275 0.13      
25 B2 1062 1044 96.82      
26 B2 900 884 0.00      
27 B2 788 775 4.15      

Unscaled Zero Point Vibrational Energy (zpe) 19768.7 cm-1
Scaled (by 0.9828) Zero Point Vibrational Energy (zpe) 19428.7 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 B97D3/6-31+G**
ABC
0.26391 0.26080 0.13807

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.198
C2 0.000 1.180 0.369
C3 0.000 0.670 -1.048
C4 0.000 -0.670 -1.048
C5 0.000 -1.180 0.369
H6 0.892 1.791 0.601
H7 -0.892 1.791 0.601
H8 -0.892 -1.791 0.601
H9 0.892 -1.791 0.601
H10 0.000 1.322 -1.919
H11 0.000 -1.322 -1.919

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.44242.34372.34371.44242.08802.08802.08802.08803.38593.3859
C21.44241.50612.33062.36091.10561.10563.11093.11092.29253.3908
C32.34371.50611.34002.33062.18402.18403.09333.09331.08822.1742
C42.34372.33061.34001.50613.09333.09332.18402.18402.17421.0882
C51.44242.36092.33061.50613.11093.11091.10561.10563.39082.2925
H62.08801.10562.18403.09333.11091.78474.00143.58132.71394.1029
H72.08801.10562.18403.09333.11091.78473.58134.00142.71394.1029
H82.08803.11093.09332.18401.10564.00143.58131.78474.10292.7139
H92.08803.11093.09332.18401.10563.58134.00141.78474.10292.7139
H103.38592.29251.08822.17423.39082.71392.71394.10294.10292.6439
H113.38593.39082.17421.08822.29254.10294.10292.71392.71392.6439

picture of Furan, 2,5-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 105.233 O1 C2 H6 109.523
O1 C2 H7 109.523 O1 C5 C4 105.233
O1 C5 H8 109.523 O1 C5 H9 109.523
C2 O1 C5 110.034 C2 C3 C4 109.750
C2 C3 H10 123.414 C3 C2 H6 112.510
C3 C2 H7 112.510 C3 C4 C5 109.750
C3 C4 H11 126.837 C4 C3 H10 126.837
C4 C5 H8 112.510 C4 C5 H9 112.510
C5 C4 H11 123.414 H6 C2 H7 107.504
H8 C5 H9 107.504
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.331      
2 C -0.246      
3 C -0.020      
4 C -0.020      
5 C -0.246      
6 H 0.144      
7 H 0.144      
8 H 0.144      
9 H 0.144      
10 H 0.143      
11 H 0.143      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.762 1.762
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.512 0.000 0.000
y 0.000 -26.173 0.000
z 0.000 0.000 -32.707
Traceless
 xyz
x -2.072 0.000 0.000
y 0.000 5.936 0.000
z 0.000 0.000 -3.864
Polar
3z2-r2-7.728
x2-y2-5.339
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.777 0.000 0.000
y 0.000 9.456 0.000
z 0.000 0.000 7.018


<r2> (average value of r2) Å2
<r2> 95.536
(<r2>)1/2 9.774