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

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-267.792105
Energy at 298.15K-267.798785
HF Energy-267.792105
Nuclear repulsion energy219.644760
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 mPW1PW91/3-21G
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' 3353 3201 0.22      
2 A' 3341 3189 0.02      
3 A' 3306 3156 0.71      
4 A' 3154 3011 11.49      
5 A' 3071 2932 20.79      
6 A' 1648 1573 3.34      
7 A' 1558 1487 9.96      
8 A' 1530 1460 6.58      
9 A' 1470 1403 5.04      
10 A' 1401 1337 8.67      
11 A' 1287 1229 0.55      
12 A' 1266 1208 0.99      
13 A' 1186 1132 14.83      
14 A' 1086 1036 7.09      
15 A' 1051 1003 1.08      
16 A' 1043 996 20.29      
17 A' 991 946 1.23      
18 A' 891 851 31.31      
19 A' 646 617 2.18      
20 A' 323 308 1.12      
21 A" 3131 2989 14.19      
22 A" 1556 1485 9.16      
23 A" 1109 1059 8.67      
24 A" 910 869 0.01      
25 A" 819 782 66.69      
26 A" 774 738 18.05      
27 A" 636 607 2.47      
28 A" 621 593 27.18      
29 A" 266 254 4.11      
30 A" 117 111 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 21769.0 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 20780.6 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 mPW1PW91/3-21G
ABC
0.29155 0.11173 0.08202

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.723 -1.465 0.000
C2 -1.099 -0.122 0.000
C3 0.668 -1.478 0.000
C4 0.000 0.680 0.000
C5 1.145 -0.206 0.000
C6 0.035 2.177 0.000
H7 -2.155 0.075 0.000
H8 1.131 -2.446 0.000
H9 2.179 0.093 0.000
H10 -0.977 2.591 0.000
H11 0.558 2.554 0.886
H12 0.558 2.554 -0.886

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.39471.39102.26392.25303.72022.10312.09803.29434.06404.31024.3102
C21.39472.22711.36102.24602.56381.07413.22133.28582.71583.26993.2699
C31.39102.22712.25871.35833.70873.22171.07362.17984.38834.12904.1290
C42.26391.36102.25871.44771.49712.23863.32452.25712.14602.14632.1463
C52.25302.24601.35831.44772.62843.31222.24011.07673.51062.95722.9572
C63.72022.56383.70871.49712.62843.03594.75092.98981.09371.09571.0957
H72.10311.07413.22172.23863.31223.03594.14214.33472.77823.78043.7804
H82.09803.22131.07363.32452.24014.75094.14212.74665.46025.10985.1098
H93.29433.28582.17982.25711.07672.98984.33472.74664.02513.07723.0772
H104.06402.71584.38832.14603.51061.09372.77825.46024.02511.77281.7728
H114.31023.26994.12902.14632.95721.09573.78045.10983.07721.77281.7723
H124.31023.26994.12902.14632.95721.09573.78045.10983.07721.77281.7723

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 110.469 O1 C2 H7 116.223
O1 C3 C5 110.060 O1 C3 H8 116.102
C2 O1 C3 106.160 C2 C4 C5 106.147
C2 C4 C6 127.472 C3 C5 C4 107.165
C3 C5 H9 126.685 C4 C2 H7 133.308
C4 C5 H9 126.151 C4 C6 H10 110.893
C4 C6 H11 110.800 C4 C6 H12 110.800
C5 C3 H8 133.839 C5 C4 C6 126.381
H10 C6 H11 108.139 H10 C6 H12 108.139
H11 C6 H12 107.954
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.495      
2 C 0.067      
3 C 0.053      
4 C -0.074      
5 C -0.278      
6 C -0.690      
7 H 0.248      
8 H 0.251      
9 H 0.221      
10 H 0.226      
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
  0.608 1.036 0.000 1.201
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.404 -2.671 0.000
y -2.671 -32.885 0.000
z 0.000 0.000 -38.344
Traceless
 xyz
x 4.211 -2.671 0.000
y -2.671 1.989 0.000
z 0.000 0.000 -6.200
Polar
3z2-r2-12.400
x2-y21.482
xy-2.671
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.714 -0.122 0.000
y -0.122 8.690 0.000
z 0.000 0.000 3.252


<r2> (average value of r2) Å2
<r2> 144.751
(<r2>)1/2 12.031