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

using model chemistry: mPW1PW91/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 mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-231.197471
Energy at 298.15K-231.204674
Nuclear repulsion energy174.439745
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/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3287 3150 4.73      
2 A 3259 3123 1.15      
3 A 3149 3018 29.01      
4 A 3103 2974 27.65      
5 A 3069 2941 41.91      
6 A 3045 2918 43.47      
7 A 1700 1629 69.69      
8 A 1508 1445 1.32      
9 A 1483 1422 1.08      
10 A 1403 1345 5.78      
11 A 1325 1270 2.94      
12 A 1294 1240 5.45      
13 A 1245 1193 7.90      
14 A 1207 1157 15.21      
15 A 1166 1117 73.44      
16 A 1101 1055 30.98      
17 A 1067 1023 4.14      
18 A 1026 983 7.85      
19 A 956 917 12.16      
20 A 947 907 49.26      
21 A 916 878 5.12      
22 A 849 814 1.95      
23 A 841 806 5.98      
24 A 713 683 44.05      
25 A 690 661 4.02      
26 A 459 440 19.54      
27 A 107 102 1.01      

Unscaled Zero Point Vibrational Energy (zpe) 20457.1 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 19604.0 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/aug-cc-pVDZ
ABC
0.27134 0.26088 0.14076

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.016 2.088 0.093
C2 0.552 1.109 0.047
H3 2.265 -0.263 0.024
C4 1.199 -0.057 0.010
O5 0.403 -1.160 -0.077
H6 -1.323 1.171 -1.039
H7 -1.521 1.329 0.712
C8 -0.927 0.837 -0.068
H9 -1.569 -1.205 -0.672
H10 -1.293 -1.000 1.081
C11 -0.958 -0.695 0.080

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.08452.66372.15503.30962.75622.72012.31674.25553.98073.4123
C21.08452.19531.33422.27702.16832.18851.50813.22002.98692.3529
H32.66372.19531.08642.06914.00824.16513.37754.00883.78473.2527
C42.15501.33421.08641.36212.99523.13262.30723.07262.87132.2501
O53.30962.27702.06911.36213.05593.24342.39882.06042.06011.4470
H62.75622.16834.00822.99523.05591.76931.10082.41613.03412.2060
H72.72012.18854.16513.13263.24341.76931.09752.88732.36882.1939
C82.31671.50813.37752.30722.39881.10081.09752.22342.19701.5391
H94.25553.22004.00883.07262.06042.41612.88732.22341.78591.0945
H103.98072.98693.78472.87132.06013.03412.36882.19701.78591.0987
C113.41232.35293.25272.25011.44702.20602.19391.53911.09451.0987

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 125.671 H1 C2 C8 125.864
C2 C4 H3 129.881 C2 C4 O5 115.229
C2 C8 H6 111.471 C2 C8 H7 113.320
C2 C8 C11 101.091 H3 C4 O5 114.883
C4 C2 C8 108.373 C4 O5 C11 106.415
O5 C11 C8 106.861 O5 C11 H9 107.521
O5 C11 H10 107.257 H6 C8 H7 107.190
H6 C8 C11 112.304 H7 C8 C11 111.533
C8 C11 H9 114.125 C8 C11 H10 111.712
H9 C11 H10 109.037
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H -0.385      
2 C 0.561      
3 H -0.359      
4 C 0.425      
5 O -0.605      
6 H -0.191      
7 H -0.170      
8 C 0.356      
9 H -0.290      
10 H -0.275      
11 C 0.932      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.812 0.900 0.091 1.215
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.990 0.993 0.045
y 0.993 -31.559 -0.179
z 0.045 -0.179 -31.343
Traceless
 xyz
x 4.461 0.993 0.045
y 0.993 -2.393 -0.179
z 0.045 -0.179 -2.068
Polar
3z2-r2-4.137
x2-y24.569
xy0.993
xz0.045
yz-0.179


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.204 -0.192 0.035
y -0.192 8.230 -0.024
z 0.035 -0.024 6.053


<r2> (average value of r2) Å2
<r2> 94.108
(<r2>)1/2 9.701