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

using model chemistry: HF/CEP-31G

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/CEP-31G
 hartrees
Energy at 0K-47.642818
Energy at 298.15K-47.652137
Nuclear repulsion energy127.628117
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/CEP-31G
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 3442 3103 9.05      
2 A 3346 3016 94.00      
3 A 3327 2999 46.07      
4 A 3301 2976 40.21      
5 A 3282 2958 96.22      
6 A 3270 2947 41.39      
7 A 3228 2910 71.56      
8 A 3226 2908 59.36      
9 A 1876 1691 69.63      
10 A 1666 1502 0.72      
11 A 1647 1485 0.92      
12 A 1627 1467 10.34      
13 A 1611 1453 10.57      
14 A 1571 1416 10.93      
15 A 1519 1370 8.95      
16 A 1455 1312 5.45      
17 A 1393 1256 59.16      
18 A 1361 1227 0.23      
19 A 1322 1191 62.83      
20 A 1300 1172 4.26      
21 A 1192 1075 4.46      
22 A 1181 1064 3.83      
23 A 1147 1034 26.61      
24 A 1116 1006 22.43      
25 A 1051 947 38.03      
26 A 993 895 35.36      
27 A 951 858 34.54      
28 A 918 827 19.39      
29 A 875 788 26.50      
30 A 789 711 1.20      
31 A 661 596 2.32      
32 A 583 526 1.53      
33 A 343 309 3.68      
34 A 243 219 13.66      
35 A 184 166 2.54      
36 A 37 33 4.49      

Unscaled Zero Point Vibrational Energy (zpe) 28517.4 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 25705.5 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 HF/CEP-31G
ABC
0.24842 0.10580 0.07739

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.408 -0.817 0.000
H2 -1.829 -1.283 -0.884
H3 -1.828 -1.281 0.886
O4 0.031 -1.095 -0.000
C5 -1.551 0.739 -0.000
H6 -2.091 1.093 0.876
H7 -2.090 1.092 -0.878
C8 -0.090 1.192 0.000
H9 0.232 2.215 0.001
C10 2.226 -0.011 0.000
H11 2.553 -0.564 -0.879
H12 2.696 0.969 -0.000
H13 2.553 -0.563 0.880
C14 0.727 0.119 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 O4 C5 H6 H7 C8 H9 C10 H11 H12 H13 C14
C11.08431.08431.46611.56252.20932.20932.40263.44713.72284.06614.47634.06622.3316
H21.08431.76992.06762.22382.96852.38933.15074.15484.34054.44065.13094.77823.0460
H31.08431.76992.06762.22382.38922.96923.14964.15334.33944.77735.12974.43933.0450
O41.46612.06762.06762.42183.17143.17042.28963.31572.44802.72323.37072.72381.3989
C51.56252.22382.22382.42181.08891.08891.52922.31443.85054.39474.25334.39492.3610
H62.20932.96852.38923.17141.08891.75462.18642.72404.54095.23404.86824.93063.1078
H72.20932.38932.96923.17041.08891.75462.18632.72454.54024.92954.86755.23353.1071
C82.40263.15073.14962.28961.52922.18642.18631.07272.60953.29272.79533.29261.3488
H93.44714.15484.15333.31572.31442.72402.72451.07272.98823.72612.76153.72552.1539
C103.72284.34054.33942.44803.85054.54094.54022.60952.98821.08921.08651.08921.5043
H114.06614.44064.77732.72324.39475.23404.92953.29273.72611.08921.77261.75922.1386
H124.47635.13095.12973.37074.25334.86824.86752.79532.76151.08651.77261.77262.1448
H134.06624.77824.43932.72384.39494.93065.23353.29263.72551.08921.75921.77262.1387
C142.33163.04603.04501.39892.36103.10783.10711.34882.15391.50432.13862.14482.1387

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 108.918 C1 C5 H6 111.626
C1 C5 H7 111.625 C1 C5 C8 101.986
H2 C1 H3 109.402 H2 C1 O4 107.381
H2 C1 C5 113.083 H3 C1 O4 107.381
H3 C1 C5 113.077 O4 C1 C5 106.151
O4 C14 C8 112.863 O4 C14 C10 114.909
C5 C8 H9 124.683 C5 C8 C14 110.082
H6 C5 H7 107.349 H6 C5 C8 112.157
H7 C5 C8 112.153 C8 C14 C10 132.228
H9 C8 C14 125.235 H11 C10 H12 109.111
H11 C10 H13 107.712 H11 C10 C14 110.060
H12 C10 H13 109.111 H12 C10 C14 110.718
H13 C10 C14 110.067
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.019      
2 H 0.135      
3 H 0.135      
4 O -0.363      
5 C -0.228      
6 H 0.103      
7 H 0.103      
8 C -0.146      
9 H 0.300      
10 C -0.275      
11 H 0.124      
12 H 0.130      
13 H 0.124      
14 C -0.123      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.736 1.305 0.002 1.498
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.375 1.552 0.000
y 1.552 -39.299 -0.001
z 0.000 -0.001 -37.751
Traceless
 xyz
x 7.149 1.552 0.000
y 1.552 -4.736 -0.001
z 0.000 -0.001 -2.413
Polar
3z2-r2-4.827
x2-y27.924
xy1.552
xz0.000
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.068 -0.801 0.000
y -0.801 8.060 -0.000
z 0.000 -0.000 5.300


<r2> (average value of r2) Å2
<r2> 132.476
(<r2>)1/2 11.510