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

using model chemistry: BLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/cc-pVTZ
 hartrees
Energy at 0K-231.210433
Energy at 298.15K-231.217492
Nuclear repulsion energy172.733448
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 BLYP/cc-pVTZ
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 3139 3130 11.46      
2 A1 2895 2886 8.68      
3 A1 1624 1620 0.05      
4 A1 1483 1479 1.19      
5 A1 1342 1338 2.73      
6 A1 1091 1088 1.23      
7 A1 957 954 6.15      
8 A1 848 845 17.78      
9 A1 729 727 6.77      
10 A2 2897 2888 0.00      
11 A2 1182 1179 0.00      
12 A2 1030 1027 0.00      
13 A2 918 916 0.00      
14 A2 391 390 0.00      
15 B1 2898 2889 106.07      
16 B1 1134 1130 4.11      
17 B1 994 991 13.29      
18 B1 654 652 33.11      
19 B1 114 114 6.24      
20 B2 3117 3107 4.93      
21 B2 2889 2880 167.12      
22 B2 1473 1469 1.93      
23 B2 1327 1323 2.34      
24 B2 1293 1289 0.01      
25 B2 1023 1020 89.80      
26 B2 885 882 0.03      
27 B2 784 782 6.07      

Unscaled Zero Point Vibrational Energy (zpe) 19555.4 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 19496.7 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 BLYP/cc-pVTZ
ABC
0.26312 0.26004 0.13760

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.204
C2 0.000 1.185 0.367
C3 0.000 0.667 -1.048
C4 0.000 -0.667 -1.048
C5 0.000 -1.185 0.367
H6 0.890 1.798 0.596
H7 -0.890 1.798 0.596
H8 -0.890 -1.798 0.596
H9 0.890 -1.798 0.596
H10 0.000 1.316 -1.920
H11 0.000 -1.316 -1.920

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.45042.34922.34921.45042.09592.09592.09592.09593.38993.3899
C21.45041.50712.33092.36911.10441.10443.12043.12042.29103.3885
C32.34921.50711.33452.33092.18452.18453.09353.09351.08642.1660
C42.34922.33091.33451.50713.09353.09352.18452.18452.16601.0864
C51.45042.36912.33091.50713.12043.12041.10441.10443.38852.2910
H62.09591.10442.18453.09353.12041.77964.01143.59502.71174.1003
H72.09591.10442.18453.09353.12041.77963.59504.01142.71174.1003
H82.09593.12043.09352.18451.10444.01143.59501.77964.10032.7117
H92.09593.12043.09352.18451.10443.59504.01141.77964.10032.7117
H103.38992.29101.08642.16603.38852.71172.71174.10034.10032.6312
H113.38993.38852.16601.08642.29104.10034.10032.71172.71172.6312

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 105.169 O1 C2 H6 109.504
O1 C2 H7 109.504 O1 C5 C4 105.169
O1 C5 H8 109.504 O1 C5 H9 109.504
C2 O1 C5 109.513 C2 C3 C4 110.074
C2 C3 H10 123.287 C3 C2 H6 112.636
C3 C2 H7 112.636 C3 C4 C5 110.074
C3 C4 H11 126.639 C4 C3 H10 126.639
C4 C5 H8 112.636 C4 C5 H9 112.636
C5 C4 H11 123.287 H6 C2 H7 107.353
H8 C5 H9 107.353
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.310      
2 C 0.066      
3 C -0.135      
4 C -0.135      
5 C 0.066      
6 H 0.063      
7 H 0.063      
8 H 0.063      
9 H 0.063      
10 H 0.099      
11 H 0.099      


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 -1.561 1.561
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.415 0.000 0.000
y 0.000 -26.758 0.000
z 0.000 0.000 -32.443
Traceless
 xyz
x -1.815 0.000 0.000
y 0.000 5.171 0.000
z 0.000 0.000 -3.356
Polar
3z2-r2-6.713
x2-y2-4.657
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.441 0.000 0.000
y 0.000 9.518 0.000
z 0.000 0.000 7.084


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000