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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-267.905653
Energy at 298.15K-267.914609
HF Energy-267.337955
Nuclear repulsion energy233.666950
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 MP2/3-21G
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 3279 3130 2.36      
2 A 3180 3036 37.56      
3 A 3177 3032 10.69      
4 A 3157 3013 10.65      
5 A 3136 2993 7.33      
6 A 3123 2980 38.85      
7 A 3097 2956 28.72      
8 A 3092 2951 10.14      
9 A 1710 1632 21.20      
10 A 1612 1538 0.22      
11 A 1595 1522 5.48      
12 A 1589 1517 5.16      
13 A 1576 1504 6.85      
14 A 1493 1425 6.22      
15 A 1407 1343 3.77      
16 A 1351 1289 14.16      
17 A 1303 1244 21.38      
18 A 1300 1241 0.55      
19 A 1223 1167 0.37      
20 A 1201 1146 53.36      
21 A 1140 1088 4.40      
22 A 1103 1053 0.37      
23 A 1080 1031 7.45      
24 A 987 943 1.91      
25 A 957 913 55.06      
26 A 899 858 17.01      
27 A 865 826 0.67      
28 A 864 825 13.28      
29 A 748 714 29.30      
30 A 728 694 1.19      
31 A 620 592 2.14      
32 A 533 509 2.47      
33 A 326 311 2.26      
34 A 220 210 9.81      
35 A 151 144 1.19      
36 A 35 33 2.00      

Unscaled Zero Point Vibrational Energy (zpe) 26926.6 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 25701.5 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 MP2/3-21G
ABC
0.24194 0.10541 0.07663

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.423 -0.820 -0.000
H2 -1.855 -1.269 -0.897
H3 -1.855 -1.270 0.896
O4 0.053 -1.142 0.000
C5 -1.549 0.752 0.000
H6 -2.082 1.103 0.890
H7 -2.083 1.104 -0.889
C8 -0.079 1.183 -0.000
H9 0.249 2.213 -0.000
C10 2.225 0.001 0.000
H11 2.563 -0.547 -0.885
H12 2.671 1.000 -0.002
H13 2.563 -0.543 0.888
C14 0.727 0.108 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 O4 C5 H6 H7 C8 H9 C10 H11 H12 H13 C14
C11.09181.09181.51031.57702.21972.21982.41243.46303.73924.09184.48004.09312.3414
H21.09181.79272.11172.23212.97882.38393.15784.16554.36624.47625.14104.81993.0603
H31.09181.79272.11172.23212.38372.97853.15834.16614.36664.81825.14244.47783.0607
O41.51032.11172.11172.48073.22373.22432.32943.36102.45502.72743.38302.72951.4209
C51.57702.23212.23212.48071.09521.09521.53212.31643.84804.40224.22714.40172.3648
H62.21972.97882.38373.22371.09521.77922.19342.73034.53405.23934.83694.92823.1096
H72.21982.38392.97853.22431.09521.77922.19352.73014.53464.93014.83655.23973.1101
C82.41243.15783.15832.32941.53212.19342.19351.08042.58953.27982.75583.27871.3431
H93.46304.16554.16613.36102.31642.73032.73011.08042.96623.70922.70903.70722.1581
C103.73924.36624.36662.45503.84804.53404.53462.58952.96621.09511.09371.09511.5023
H114.09184.47624.81822.72744.40225.23934.93013.27983.70921.09511.78491.77352.1414
H124.48005.14105.14243.38304.22714.83694.83652.75582.70901.09371.78491.78492.1389
H134.09314.81994.47782.72954.40174.92825.23973.27873.70721.09511.77351.78492.1416
C142.34143.06033.06071.42092.36483.10963.11011.34312.15811.50232.14142.13892.1416

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 105.993 C1 C5 H6 111.046
C1 C5 H7 111.052 C1 C5 C8 101.764
H2 C1 H3 110.367 H2 C1 O4 107.399
H2 C1 C5 112.234 H3 C1 O4 107.398
H3 C1 C5 112.233 O4 C1 C5 106.911
O4 C14 C8 114.836 O4 C14 C10 114.222
C5 C8 H9 123.992 C5 C8 C14 110.495
H6 C5 H7 108.638 H6 C5 C8 112.126
H7 C5 C8 112.133 C8 C14 C10 130.942
H9 C8 C14 125.513 H11 C10 H12 109.270
H11 C10 H13 108.146 H11 C10 C14 110.077
H12 C10 H13 109.267 H12 C10 C14 109.959
H13 C10 C14 110.090
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.133     -0.024
2 H 0.199     0.084
3 H 0.199     0.084
4 O -0.508     -0.351
5 C -0.436     0.079
6 H 0.202     0.027
7 H 0.202     0.027
8 C -0.268     -0.437
9 H 0.185     0.167
10 C -0.594     -0.673
11 H 0.214     0.198
12 H 0.197     0.188
13 H 0.214     0.198
14 C 0.327     0.433


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.574 0.994 -0.000 1.148
CHELPG        
AIM        
ESP -0.583 0.952 -0.000 1.116


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.414 1.329 0.000
y 1.329 -38.787 0.000
z 0.000 0.000 -38.209
Traceless
 xyz
x 6.084 1.329 0.000
y 1.329 -3.476 0.000
z 0.000 0.000 -2.609
Polar
3z2-r2-5.217
x2-y26.374
xy1.329
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.709 -0.324 0.000
y -0.324 7.629 -0.000
z 0.000 -0.000 5.049


<r2> (average value of r2) Å2
<r2> 161.190
(<r2>)1/2 12.696