return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H8O (Furan, 2,3-dihydro-5-methyl-)

using model chemistry: HF/daug-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 HF/daug-cc-pVTZ
 hartrees
Energy at 0K-268.935326
Energy at 298.15K-268.944837
HF Energy-268.935326
Nuclear repulsion energy240.099675
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 HF/daug-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 3378 3055 4.85      
2 A 3256 2945 21.25      
3 A 3245 2935 52.57      
4 A 3219 2912 18.31      
5 A 3199 2894 79.18      
6 A 3180 2876 25.34      
7 A 3169 2867 27.43      
8 A 3155 2854 59.51      
9 A 1866 1688 90.71      
10 A 1654 1496 0.55      
11 A 1627 1472 0.56      
12 A 1604 1451 4.24      
13 A 1590 1438 6.61      
14 A 1548 1400 28.64      
15 A 1530 1384 4.43      
16 A 1448 1310 9.75      
17 A 1385 1253 53.45      
18 A 1364 1234 4.87      
19 A 1318 1192 9.03      
20 A 1306 1182 68.82      
21 A 1178 1065 1.28      
22 A 1164 1053 5.06      
23 A 1153 1043 60.65      
24 A 1101 996 7.48      
25 A 1060 958 13.53      
26 A 997 902 43.82      
27 A 980 887 10.74      
28 A 921 833 5.47      
29 A 837 757 36.72      
30 A 769 695 0.71      
31 A 669 605 0.95      
32 A 623 564 0.24      
33 A 359 325 3.07      
34 A 249 225 6.81      
35 A 201 182 3.00      
36 A 99 90 1.60      

Unscaled Zero Point Vibrational Energy (zpe) 28199.4 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 25509.2 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 HF/daug-cc-pVTZ
ABC
0.25770 0.11050 0.08096

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.352 -0.813 0.072
H2 -1.881 -1.373 -0.685
H3 -1.659 -1.170 1.047
O4 0.038 -1.072 -0.073
C5 -1.526 0.712 -0.053
H6 -2.150 1.106 0.740
H7 -1.984 0.995 -0.995
C8 -0.090 1.162 0.034
H9 0.241 2.178 0.076
C10 2.181 -0.006 0.009
H11 2.521 -0.510 -0.888
H12 2.637 0.972 0.059
H13 2.505 -0.593 0.859
C14 0.698 0.107 -0.001

Atom - Atom Distances (Å)
  C1 H2 H3 O4 C5 H6 H7 C8 H9 C10 H11 H12 H13 C14
C11.07961.08261.42141.53972.18332.19232.34433.38863.62474.00154.37083.94352.2488
H21.07961.75772.03652.20692.87192.39003.18574.20534.34144.48985.14454.71533.0514
H31.08261.75772.03582.18352.34882.99352.98783.97014.14484.65314.90174.20892.8788
O41.42142.03652.03582.37213.19243.03472.23963.25922.39492.67273.30952.68101.3534
C51.53972.20692.18352.37211.08301.08531.50772.29933.77594.30854.17284.33442.3054
H62.18332.87192.34883.19241.08301.74622.17862.70274.53035.20334.83714.95733.1077
H72.19232.39002.99353.03471.08531.74622.16222.73744.39914.75034.73975.11042.9950
C82.34433.18572.98782.23961.50772.17862.16221.06922.55283.23362.73343.23961.3165
H93.38864.20533.97013.25922.29932.70272.73741.06922.92123.65342.68243.66352.1215
C103.62474.34144.14482.39493.77594.53034.39912.55282.92121.08381.08031.08361.4868
H114.00154.48984.65312.67274.30855.20334.75033.23363.65341.08381.76261.74952.1187
H124.37085.14454.90173.30954.17284.83714.73972.73342.68241.08031.76261.76342.1240
H133.94354.71534.20892.68104.33444.95735.11043.23963.66351.08361.74951.76342.1206
C142.24883.05142.87881.35342.30543.10772.99501.31652.12151.48682.11872.12402.1206

picture of Furan, 2,3-dihydro-5-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 C14 108.249 C1 C5 H6 111.510
C1 C5 H7 112.105 C1 C5 C8 100.570
H2 C1 H3 108.760 H2 C1 O4 108.251
H2 C1 C5 113.659 H3 C1 O4 108.013
H3 C1 C5 111.549 O4 C1 C5 106.396
O4 C14 C8 114.029 O4 C14 C10 114.878
C5 C8 H9 125.464 C5 C8 C14 109.242
H6 C5 H7 107.283 H6 C5 C8 113.456
H7 C5 C8 111.960 C8 C14 C10 131.088
H9 C8 C14 125.248 H11 C10 H12 109.075
H11 C10 H13 107.652 H11 C10 C14 110.032
H12 C10 H13 109.156 H12 C10 C14 110.667
H13 C10 C14 110.195
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.649      
2 H 0.542      
3 H 0.261      
4 O -0.538      
5 C -0.536      
6 H 0.378      
7 H 0.377      
8 C -1.196      
9 H 0.707      
10 C -0.936      
11 H 0.179      
12 H 0.347      
13 H 0.370      
14 C 0.694      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.410 0.718 0.103 0.833
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.622 1.149 -0.009
y 1.149 -38.162 -0.189
z -0.009 -0.189 -37.628
Traceless
 xyz
x 5.273 1.149 -0.009
y 1.149 -3.037 -0.189
z -0.009 -0.189 -2.236
Polar
3z2-r2-4.473
x2-y25.540
xy1.149
xz-0.009
yz-0.189


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.304 -0.616 -0.006
y -0.616 9.025 -0.007
z -0.006 -0.007 7.047


<r2> (average value of r2) Å2
<r2> 154.388
(<r2>)1/2 12.425