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

using model chemistry: HSEh1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HSEh1PBE/3-21G
 hartrees
Energy at 0K-229.705885
Energy at 298.15K-229.712997
HF Energy-229.705885
Nuclear repulsion energy172.280712
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 HSEh1PBE/3-21G
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 3312 3191 3.68      
2 A 3280 3160 0.90      
3 A 3168 3052 30.02      
4 A 3114 2999 7.66      
5 A 3112 2998 35.58      
6 A 3078 2965 28.23      
7 A 1695 1632 38.34      
8 A 1567 1510 1.12      
9 A 1540 1483 0.83      
10 A 1404 1352 2.61      
11 A 1333 1284 12.56      
12 A 1312 1264 14.94      
13 A 1286 1239 0.71      
14 A 1217 1172 1.75      
15 A 1183 1140 28.98      
16 A 1083 1043 0.24      
17 A 1071 1032 74.18      
18 A 1007 970 0.92      
19 A 959 924 2.73      
20 A 933 899 15.98      
21 A 915 882 35.98      
22 A 850 819 1.79      
23 A 843 812 0.94      
24 A 744 717 54.03      
25 A 713 687 3.08      
26 A 461 444 29.24      
27 A 51 50 1.95      

Unscaled Zero Point Vibrational Energy (zpe) 20614.8 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 19858.3 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 HSEh1PBE/3-21G
ABC
0.26385 0.25472 0.13633

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.119 1.852 0.533
C2 0.648 1.008 0.135
H3 2.225 -0.416 0.057
C4 1.189 -0.207 0.000
O5 0.207 -1.196 -0.204
H6 -0.819 0.756 -1.345
H7 -1.420 1.682 0.074
C8 -0.760 0.884 -0.257
H9 -1.992 -0.918 -0.057
H10 -1.025 -0.485 1.383
C11 -1.035 -0.502 0.286

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.04542.56792.12793.26602.91222.58522.25644.20673.28253.1993
C21.04542.12601.33632.27312.09872.17601.46733.27342.56562.2654
H32.56792.12601.05882.17953.55064.20563.27184.24873.51053.2690
C42.12791.33631.05881.40882.60153.22152.24893.26002.62462.2611
O53.26602.27312.17951.40882.48333.31792.29552.22182.13141.5053
H62.91222.09873.55062.60152.48331.79761.09702.41623.00372.0714
H72.58522.17604.20563.22153.31791.79761.08622.66512.56162.2271
C82.25641.46733.27182.24892.29551.09701.08622.19212.15241.5138
H94.20673.27344.24873.26002.22182.41622.66512.19211.78801.0993
H103.28252.56563.51052.62462.13143.00372.56162.15241.78801.0963
C113.19932.26543.26902.26111.50532.07142.22711.51381.09931.0963

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 126.182 H1 C2 C8 126.980
C2 C4 H3 124.757 C2 C4 O5 111.777
C2 C8 H6 109.003 C2 C8 H7 116.090
C2 C8 C11 98.902 H3 C4 O5 123.456
C4 C2 C8 106.579 C4 O5 C11 101.730
O5 C11 C8 98.987 O5 C11 H9 116.216
O5 C11 H10 109.009 H6 C8 H7 110.840
H6 C8 C11 103.859 H7 C8 C11 116.913
C8 C11 H9 113.090 C8 C11 H10 110.075
H9 C11 H10 109.052
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.213      
2 C -0.300      
3 H 0.244      
4 C 0.097      
5 O -0.496      
6 H 0.235      
7 H 0.235      
8 C -0.495      
9 H 0.235      
10 H 0.235      
11 C -0.203      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.825 1.169 -0.000 1.431
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.759 1.170 -0.000
y 1.170 -31.562 0.000
z -0.000 0.000 -31.124
Traceless
 xyz
x 5.584 1.170 -0.000
y 1.170 -3.121 0.000
z -0.000 0.000 -2.464
Polar
3z2-r2-4.927
x2-y25.803
xy1.170
xz-0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.513 -0.168 0.000
y -0.168 6.597 0.000
z 0.000 0.000 3.706


<r2> (average value of r2) Å2
<r2> 95.765
(<r2>)1/2 9.786