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

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-269.066134
Energy at 298.15K-269.075138
Nuclear repulsion energy234.945773
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 B3LYP/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 3271 3156 2.91      
2 A 3148 3038 10.86      
3 A 3135 3025 38.41      
4 A 3101 2992 12.52      
5 A 3086 2978 46.14      
6 A 3077 2969 12.06      
7 A 3056 2949 17.07      
8 A 3050 2943 38.19      
9 A 1730 1669 39.89      
10 A 1573 1518 0.04      
11 A 1554 1499 8.07      
12 A 1549 1494 2.67      
13 A 1538 1484 8.48      
14 A 1465 1414 8.35      
15 A 1393 1344 5.63      
16 A 1330 1283 14.74      
17 A 1285 1240 27.12      
18 A 1280 1235 0.49      
19 A 1208 1166 0.39      
20 A 1196 1154 53.74      
21 A 1119 1080 7.80      
22 A 1082 1044 0.44      
23 A 1064 1027 7.61      
24 A 993 958 1.76      
25 A 958 924 60.56      
26 A 902 870 18.16      
27 A 873 843 15.80      
28 A 844 814 0.76      
29 A 763 737 30.57      
30 A 731 706 1.20      
31 A 626 604 1.35      
32 A 548 529 1.32      
33 A 322 311 2.39      
34 A 221 213 9.87      
35 A 152 147 1.58      
36 A 60 58 1.92      

Unscaled Zero Point Vibrational Energy (zpe) 26642.0 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 25706.9 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 B3LYP/3-21G
ABC
0.24516 0.10650 0.07751

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.415 -0.816 0.001
H2 -1.850 -1.270 -0.892
H3 -1.846 -1.266 0.898
O4 0.048 -1.130 -0.001
C5 -1.539 0.747 -0.001
H6 -2.075 1.105 0.886
H7 -2.072 1.103 -0.890
C8 -0.075 1.176 0.001
H9 0.251 2.203 0.001
C10 2.213 -0.000 0.000
H11 2.552 -0.554 -0.883
H12 2.668 0.993 -0.001
H13 2.552 -0.552 0.885
C14 0.722 0.105 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 O4 C5 H6 H7 C8 H9 C10 H11 H12 H13 C14
C11.09201.09201.49651.56812.21522.21532.40053.44853.71864.07284.46594.07312.3274
H21.09201.78942.10122.22682.97462.38283.15064.15624.34904.45975.13064.80113.0498
H31.09201.78942.10132.22652.38232.97663.14744.15244.34584.79815.12764.45623.0471
O41.49652.10122.10132.45803.20753.20472.30883.33912.44182.71623.37172.71841.4067
C51.56812.22682.22652.45801.09621.09631.52512.30753.82564.38274.21434.38282.3508
H62.21522.97462.38233.20751.09621.77602.18842.72064.51605.22434.82714.91493.1003
H72.21532.38282.97663.20471.09631.77602.18812.72144.51384.91254.82455.22253.0983
C82.40053.15063.14742.30881.52512.18842.18811.07812.57273.26752.74963.26641.3353
H93.44854.15624.15243.33912.30752.72062.72141.07812.95023.69872.70323.69642.1506
C103.71864.34904.34582.44183.82564.51604.51382.57272.95021.09621.09221.09621.4943
H114.07284.45974.79812.71624.38275.22434.91253.26753.69871.09621.78421.76772.1357
H124.46595.13065.12763.37174.21434.82714.82452.74962.70321.09221.78421.78422.1387
H134.07314.80114.45622.71844.38284.91495.22253.26643.69641.09621.76771.78422.1359
C142.32743.04983.04711.40672.35083.10033.09831.33532.15061.49432.13572.13872.1359

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 106.540 C1 C5 H6 111.261
C1 C5 H7 111.264 C1 C5 C8 101.790
H2 C1 H3 110.035 H2 C1 O4 107.509
H2 C1 C5 112.441 H3 C1 O4 107.511
H3 C1 C5 112.413 O4 C1 C5 106.631
O4 C14 C8 114.678 O4 C14 C10 114.608
C5 C8 H9 123.948 C5 C8 C14 110.360
H6 C5 H7 108.199 H6 C5 C8 112.160
H7 C5 C8 112.134 C8 C14 C10 130.714
H9 C8 C14 125.692 H11 C10 H12 109.233
H11 C10 H13 107.463 H11 C10 C14 110.119
H12 C10 H13 109.232 H12 C10 C14 110.599
H13 C10 C14 110.132
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.155     -0.063
2 H 0.206     0.096
3 H 0.206     0.096
4 O -0.507     -0.330
5 C -0.435     0.080
6 H 0.203     0.030
7 H 0.203     0.030
8 C -0.254     -0.459
9 H 0.172     0.173
10 C -0.617     -0.718
11 H 0.219     0.209
12 H 0.203     0.205
13 H 0.219     0.209
14 C 0.338     0.442


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.515 0.849 0.003 0.993
CHELPG        
AIM        
ESP -0.522 0.807 0.003 0.961


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.394 1.316 0.000
y 1.316 -37.782 -0.002
z 0.000 -0.002 -37.404
Traceless
 xyz
x 6.199 1.316 0.000
y 1.316 -3.383 -0.002
z 0.000 -0.002 -2.816
Polar
3z2-r2-5.632
x2-y26.388
xy1.316
xz0.000
yz-0.002


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.146 -0.476 0.001
y -0.476 7.827 0.001
z 0.001 0.001 5.110


<r2> (average value of r2) Å2
<r2> 159.382
(<r2>)1/2 12.625