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

using model chemistry: MP3=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP3=FULL/6-31G*
 hartrees
Energy at 0K-269.714993
Energy at 298.15K-269.724262
HF Energy-268.832704
Nuclear repulsion energy238.164247
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 MP3=FULL/6-31G*
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 3300 3097 3.38      
2 A 3206 3008 12.68      
3 A 3184 2987 35.22      
4 A 3177 2981 11.34      
5 A 3145 2951 27.58      
6 A 3108 2916 14.94      
7 A 3103 2912 42.68      
8 A 3091 2901 38.03      
9 A 1806 1695 39.06      
10 A 1583 1485 0.14      
11 A 1561 1465 0.31      
12 A 1553 1457 4.94      
13 A 1531 1437 7.40      
14 A 1480 1389 20.69      
15 A 1449 1359 8.53      
16 A 1379 1294 8.60      
17 A 1321 1239 51.61      
18 A 1295 1215 7.44      
19 A 1253 1176 27.62      
20 A 1246 1169 11.45      
21 A 1120 1051 0.11      
22 A 1098 1031 25.80      
23 A 1095 1027 26.12      
24 A 1065 999 4.07      
25 A 1012 949 11.09      
26 A 973 913 14.98      
27 A 940 882 25.37      
28 A 893 838 5.88      
29 A 752 705 26.62      
30 A 703 660 1.01      
31 A 645 605 1.63      
32 A 554 519 2.62      
33 A 338 317 2.32      
34 A 230 216 5.38      
35 A 177 166 2.83      
36 A 141 132 2.47      

Unscaled Zero Point Vibrational Energy (zpe) 27252.4 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 25570.9 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 MP3=FULL/6-31G*
ABC
0.25229 0.10931 0.08012

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.357 -0.822 0.061
H2 -1.876 -1.374 -0.727
H3 -1.695 -1.200 1.033
O4 0.052 -1.094 -0.060
C5 -1.537 0.713 -0.048
H6 -2.161 1.104 0.763
H7 -2.012 1.008 -0.992
C8 -0.101 1.176 0.033
H9 0.216 2.211 0.066
C10 2.191 0.003 0.006
H11 2.535 -0.514 -0.895
H12 2.646 0.995 0.046
H13 2.524 -0.580 0.871
C14 0.705 0.112 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 O4 C5 H6 H7 C8 H9 C10 H11 H12 H13 C14
C11.09311.09581.43981.54942.20142.21012.36013.41603.64284.01974.39583.97202.2646
H21.09311.77692.05842.22092.90512.40013.19834.22514.35534.49705.16254.74773.0653
H31.09581.77692.06312.20332.36613.01233.03114.02764.19524.69904.96344.26762.9241
O41.43982.05842.06312.40583.22523.08872.27713.31062.40472.68343.33202.69151.3728
C51.54942.22092.20332.40581.09541.09711.51032.30803.79504.33644.19314.35982.3215
H62.20142.90512.36613.22521.09541.76422.18632.71334.55215.23644.86134.97973.1273
H72.21012.40013.01233.08871.09711.76422.17422.74374.43474.79554.77175.15413.0274
C82.36013.19833.03112.27711.51032.18632.17421.08222.57543.26652.75343.26841.3358
H93.41604.22514.02763.31062.30802.71332.74371.08222.96263.70462.71723.71002.1556
C103.64284.35534.19522.40473.79504.55214.43472.57542.96261.09471.09201.09461.4897
H114.01974.49704.69902.68344.33645.23644.79553.26653.70461.09471.78131.76722.1311
H124.39585.16254.96343.33204.19314.86134.77172.75342.71721.09201.78131.78222.1325
H133.97204.74774.26762.69154.35984.97975.15413.26843.71001.09461.76721.78222.1325
C142.26463.06532.92411.37282.32153.12733.02741.33582.15561.48972.13112.13252.1325

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 107.229 C1 C5 H6 111.532
C1 C5 H7 112.126 C1 C5 C8 100.941
H2 C1 H3 108.543 H2 C1 O4 107.935
H2 C1 C5 113.240 H3 C1 O4 108.146
H3 C1 C5 111.654 O4 C1 C5 107.134
O4 C14 C8 114.423 O4 C14 C10 114.232
C5 C8 H9 124.991 C5 C8 C14 109.158
H6 C5 H7 107.159 H6 C5 C8 113.120
H7 C5 C8 112.027 C8 C14 C10 131.343
H9 C8 C14 125.794 H11 C10 H12 109.101
H11 C10 H13 107.639 H11 C10 C14 110.150
H12 C10 H13 109.184 H12 C10 C14 110.434
H13 C10 C14 110.275
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability