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

using model chemistry: B3PW91/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-231.220123
Energy at 298.15K-231.227311
Nuclear repulsion energy174.817365
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-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 A 3254 3129 5.25      
2 A 3225 3101 2.25      
3 A 3111 2992 31.46      
4 A 3069 2951 31.51      
5 A 3041 2924 39.76      
6 A 3019 2903 41.46      
7 A 1688 1623 62.04      
8 A 1514 1456 0.96      
9 A 1491 1434 0.74      
10 A 1407 1353 4.25      
11 A 1324 1273 1.40      
12 A 1303 1253 9.06      
13 A 1249 1201 7.99      
14 A 1209 1163 10.58      
15 A 1168 1123 68.30      
16 A 1097 1055 40.57      
17 A 1073 1031 5.63      
18 A 1015 976 6.76      
19 A 948 912 18.70      
20 A 940 904 39.58      
21 A 927 892 3.71      
22 A 849 816 1.35      
23 A 839 806 5.98      
24 A 721 693 40.49      
25 A 692 666 2.55      
26 A 461 444 19.74      
27 A 96 92 1.04      

Unscaled Zero Point Vibrational Energy (zpe) 20364.5 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 19582.5 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-pVTZ
ABC
0.27243 0.26193 0.14111

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.028 2.073 0.084
C2 0.561 1.102 0.043
H3 2.254 -0.275 0.020
C4 1.195 -0.063 0.009
O5 0.397 -1.162 -0.068
H6 -1.324 1.190 -1.018
H7 -1.500 1.330 0.726
C8 -0.919 0.844 -0.061
H9 -1.564 -1.181 -0.693
H10 -1.319 -1.001 1.055
C11 -0.962 -0.690 0.070

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.07822.64962.14413.29912.74282.71202.30744.23203.98813.4050
C21.07822.18261.32702.27242.16452.18291.50613.20452.99732.3519
H32.64962.18261.08062.05964.00314.14333.36573.98853.79063.2436
C42.14411.32701.08061.35942.99463.11692.30123.05802.87982.2468
O53.29912.27242.05961.35943.06533.23092.39892.05862.05771.4460
H62.74282.16454.00312.99463.06531.75831.09532.40533.01672.2019
H72.71202.18294.14333.11693.23091.75831.09212.88492.36132.1903
C82.30741.50613.36572.30122.39891.09531.09212.21682.19301.5394
H94.23203.20453.98853.05802.05862.40532.88492.21681.77471.0892
H103.98812.99733.79062.87982.05773.01672.36132.19301.77471.0930
C113.40502.35193.24362.24681.44602.20192.19031.53941.08921.0930

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 125.801 H1 C2 C8 125.653
C2 C4 H3 129.785 C2 C4 O5 115.534
C2 C8 H6 111.646 C2 C8 H7 113.353
C2 C8 C11 101.104 H3 C4 O5 114.675
C4 C2 C8 108.469 C4 O5 C11 106.392
O5 C11 C8 106.898 O5 C11 H9 107.759
O5 C11 H10 107.470 H6 C8 H7 106.990
H6 C8 C11 112.289 H7 C8 C11 111.546
C8 C11 H9 113.890 C8 C11 H10 111.711
H9 C11 H10 108.831
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.118 0.000    
2 C -0.244 0.000    
3 H 0.121 0.000    
4 C 0.028 0.000    
5 O -0.247 0.000    
6 H 0.086 0.000    
7 H 0.087 0.000    
8 C -0.138 0.000    
9 H 0.076 0.000    
10 H 0.068 0.000    
11 C 0.047 0.000    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.751 0.837 0.088 1.128
CHELPG 0.000 0.000 0.000 0.000
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> 93.635
(<r2>)1/2 9.677