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

using model chemistry: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-231.151175
Energy at 298.15K-231.158347
Nuclear repulsion energy174.197930
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 B3PW91/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 3268 3153 5.38      
2 A 3239 3125 2.21      
3 A 3122 3013 32.30      
4 A 3079 2972 27.94      
5 A 3043 2937 43.77      
6 A 3021 2915 45.86      
7 A 1700 1640 62.72      
8 A 1489 1437 0.92      
9 A 1464 1413 0.54      
10 A 1400 1351 6.11      
11 A 1315 1269 3.18      
12 A 1288 1243 4.87      
13 A 1235 1192 7.75      
14 A 1200 1158 19.74      
15 A 1164 1123 77.70      
16 A 1096 1058 23.18      
17 A 1061 1024 3.08      
18 A 1021 985 7.56      
19 A 952 918 15.56      
20 A 944 911 41.23      
21 A 916 884 3.39      
22 A 846 817 0.88      
23 A 835 805 5.83      
24 A 715 690 32.73      
25 A 688 664 2.27      
26 A 456 440 21.08      
27 A 102 99 1.12      

Unscaled Zero Point Vibrational Energy (zpe) 20329.1 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 19617.5 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 B3PW91/cc-pVDZ
ABC
0.27120 0.25971 0.14036

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.966 2.120 0.090
C2 0.525 1.126 0.048
H3 2.273 -0.213 0.020
C4 1.198 -0.028 0.009
O5 0.434 -1.152 -0.074
H6 -1.358 1.145 -1.038
H7 -1.559 1.292 0.717
C8 -0.948 0.815 -0.066
H9 -1.539 -1.245 -0.680
H10 -1.278 -1.038 1.077
C11 -0.938 -0.720 0.076

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.08802.67522.16213.31872.76092.73032.32104.26433.99733.4191
C21.08802.20161.33642.28272.17432.19581.50973.22642.99872.3559
H32.67522.20161.09022.06664.01864.17553.38174.01043.79533.2512
C42.16211.33641.09021.36163.00173.13812.30703.07372.87952.2468
O53.31872.28272.06661.36163.06903.25102.40382.06612.06601.4463
H62.76092.17434.01863.00173.06901.77291.10572.42323.04092.2132
H72.73032.19584.17553.13813.25101.77291.10212.89552.37382.2007
C82.32101.50973.38172.30702.40381.10571.10212.22902.20211.5419
H94.26433.22644.01043.07372.06612.42322.89552.22901.78841.0991
H103.99732.99873.79532.87952.06603.04092.37382.20211.78841.1036
C113.41912.35593.25122.24681.44632.21322.20071.54191.09911.1036

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 125.893 H1 C2 C8 125.854
C2 C4 H3 129.978 C2 C4 O5 115.573
C2 C8 H6 111.538 C2 C8 H7 113.512
C2 C8 C11 101.066 H3 C4 O5 114.442
C4 C2 C8 108.148 C4 O5 C11 106.255
O5 C11 C8 107.065 O5 C11 H9 107.743
O5 C11 H10 107.475 H6 C8 H7 106.839
H6 C8 C11 112.384 H7 C8 C11 111.606
C8 C11 H9 114.085 C8 C11 H10 111.626
H9 C11 H10 108.568
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.006      
2 C -0.167      
3 H 0.027      
4 C 0.157      
5 O -0.285      
6 H 0.053      
7 H 0.049      
8 C -0.048      
9 H 0.048      
10 H 0.048      
11 C 0.112      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.728 0.750 0.101 1.050
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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 94.041
(<r2>)1/2 9.697