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All results from a given calculation for C5H6O (3-Methylfuran)

using model chemistry: LSDA/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/3-21G
 hartrees
Energy at 0K-266.401044
Energy at 298.15K-266.407593
HF Energy-266.401044
Nuclear repulsion energy219.912084
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 LSDA/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' 3252 3199 0.16      
2 A' 3239 3186 1.10      
3 A' 3211 3158 0.51      
4 A' 3072 3022 6.28      
5 A' 2983 2934 15.54      
6 A' 1609 1583 4.52      
7 A' 1494 1470 13.85      
8 A' 1491 1466 2.82      
9 A' 1404 1381 11.46      
10 A' 1370 1348 8.78      
11 A' 1259 1238 0.10      
12 A' 1217 1197 1.25      
13 A' 1164 1145 15.08      
14 A' 1075 1057 8.12      
15 A' 1031 1014 4.57      
16 A' 1009 993 13.98      
17 A' 970 954 1.66      
18 A' 876 861 26.60      
19 A' 643 633 1.44      
20 A' 313 307 1.21      
21 A" 3046 2996 7.97      
22 A" 1487 1462 11.70      
23 A" 1061 1043 12.29      
24 A" 849 835 0.03      
25 A" 768 755 68.87      
26 A" 726 714 13.68      
27 A" 622 611 7.63      
28 A" 614 604 20.40      
29 A" 260 255 4.66      
30 A" 116 114 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 21113.8 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 20767.6 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 LSDA/3-21G
ABC
0.29189 0.11244 0.08244

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.713 -1.465 0.000
C2 -1.097 -0.131 0.000
C3 0.673 -1.471 0.000
C4 0.000 0.681 0.000
C5 1.144 -0.194 0.000
C6 0.022 2.165 0.000
H7 -2.164 0.066 0.000
H8 1.146 -2.447 0.000
H9 2.186 0.117 0.000
H10 -1.002 2.576 0.000
H11 0.546 2.555 0.892
H12 0.546 2.555 -0.892

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.38851.38632.26142.25073.70352.10932.10303.30264.05164.30614.3061
C21.38852.22051.36492.24222.55391.08503.22463.29252.70873.27253.2725
C31.38632.22052.25461.36133.69343.22691.08442.19304.38004.12554.1255
C42.26141.36492.25461.43991.48402.25013.33092.25742.14382.14622.1462
C52.25072.24221.36131.43992.61153.31852.25281.08713.50372.95102.9510
C63.70352.55393.69341.48402.61153.03094.74632.97911.10341.10561.1056
H72.10931.08503.22692.25013.31853.03094.15634.35052.76663.78653.7865
H82.10303.22461.08443.33092.25284.74634.15632.76595.46285.11585.1158
H93.30263.29252.19302.25741.08712.97914.35052.76594.02603.07083.0708
H104.05162.70874.38002.14383.50371.10342.76665.46284.02601.78631.7863
H114.30613.27254.12552.14622.95101.10563.78655.11583.07081.78631.7840
H124.30613.27254.12552.14622.95101.10563.78655.11583.07081.78631.7840

picture of 3-Methylfuran state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.427 O1 C2 H7 116.498
O1 C3 C5 109.994 O1 C3 H8 116.141
C2 O1 C3 106.302 C2 C4 C5 106.117
C2 C4 C6 127.341 C3 C5 C4 107.160
C3 C5 H9 126.829 C4 C2 H7 133.076
C4 C5 H9 126.010 C4 C6 H10 111.045
C4 C6 H11 111.106 C4 C6 H12 111.106
C5 C3 H8 133.866 C5 C4 C6 126.542
H10 C6 H11 107.928 H10 C6 H12 107.928
H11 C6 H12 107.575
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.420      
2 C 0.028      
3 C 0.009      
4 C -0.030      
5 C -0.244      
6 C -0.715      
7 H 0.233      
8 H 0.237      
9 H 0.204      
10 H 0.225      
11 H 0.236      
12 H 0.236      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.518 0.962 0.000 1.093
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.444 -2.357 0.000
y -2.357 -32.699 0.000
z 0.000 0.000 -38.249
Traceless
 xyz
x 4.030 -2.357 0.000
y -2.357 2.147 0.000
z 0.000 0.000 -6.178
Polar
3z2-r2-12.355
x2-y21.255
xy-2.357
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.895 -0.215 0.000
y -0.215 8.925 0.000
z 0.000 0.000 3.328


<r2> (average value of r2) Å2
<r2> 144.227
(<r2>)1/2 12.009