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All results from a given calculation for C4H6O (Furan, 2,3-dihydro-)

using model chemistry: B2PLYP/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 B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-231.112442
Energy at 298.15K-231.119675
HF Energy-230.821051
Nuclear repulsion energy174.551638
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 B2PLYP/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 3273 3140 5.58      
2 A 3247 3115 1.81      
3 A 3140 3013 29.72      
4 A 3096 2970 28.91      
5 A 3061 2937 41.70      
6 A 3040 2917 39.69      
7 A 1671 1603 55.71      
8 A 1532 1470 0.59      
9 A 1509 1448 0.52      
10 A 1414 1357 2.86      
11 A 1335 1281 1.14      
12 A 1315 1261 7.98      
13 A 1256 1205 10.66      
14 A 1219 1170 8.74      
15 A 1168 1120 53.26      
16 A 1096 1051 32.83      
17 A 1080 1036 27.81      
18 A 1010 969 5.17      
19 A 943 905 12.81      
20 A 938 900 39.97      
21 A 925 888 4.30      
22 A 852 818 5.42      
23 A 840 806 6.85      
24 A 723 693 39.89      
25 A 683 655 2.01      
26 A 461 442 19.65      
27 A 123 118 1.23      

Unscaled Zero Point Vibrational Energy (zpe) 20473.6 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 19642.4 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 B2PLYP/cc-pVTZ
ABC
0.27141 0.26095 0.14090

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.038 2.069 0.060
C2 0.568 1.102 0.032
H3 2.254 -0.284 0.014
C4 1.199 -0.067 0.007
O5 0.395 -1.168 -0.050
H6 -1.344 1.219 -0.981
H7 -1.471 1.322 0.767
C8 -0.918 0.852 -0.045
H9 -1.544 -1.152 -0.747
H10 -1.366 -1.023 1.011
C11 -0.971 -0.688 0.052

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.07522.64982.14303.30272.73492.71192.30604.20624.02993.4117
C21.07522.18311.32892.27892.16732.17921.50913.18593.03542.3615
H32.64982.18311.07732.05964.02454.12663.36993.96933.82643.2512
C42.14301.32891.07731.36483.01593.10492.30833.04432.91542.2582
O53.30272.27892.05961.36483.09673.21802.40952.06022.06071.4524
H62.73492.16734.02453.01593.09671.75561.09172.39072.99842.2001
H72.71192.17924.12663.10493.21801.75561.08972.90162.35992.1913
C82.30601.50913.36992.30832.40951.09171.08972.21362.19751.5438
H94.20623.18593.96933.04432.06022.39072.90162.21361.77101.0866
H104.02993.03543.82642.91542.06072.99842.35992.19751.77101.0892
C113.41172.36153.25122.25821.45242.20012.19131.54381.08661.0892

picture of Furan, 2,3-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 125.772 H1 C2 C8 125.492
C2 C4 H3 129.965 C2 C4 O5 115.553
C2 C8 H6 111.880 C2 C8 H7 112.985
C2 C8 C11 101.341 H3 C4 O5 114.480
C4 C2 C8 108.686 C4 O5 C11 106.522
O5 C11 C8 107.027 O5 C11 H9 107.604
O5 C11 H10 107.493 H6 C8 H7 107.186
H6 C8 C11 112.052 H7 C8 C11 111.464
C8 C11 H9 113.468 C8 C11 H10 111.998
H9 C11 H10 108.973
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.144      
2 C -0.258      
3 H 0.148      
4 C 0.019      
5 O -0.297      
6 H 0.098      
7 H 0.099      
8 C -0.161      
9 H 0.093      
10 H 0.079      
11 C 0.035      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.667 -0.184 0.037
y -0.184 7.692 -0.019
z 0.037 -0.019 5.234


<r2> (average value of r2) Å2
<r2> 93.948
(<r2>)1/2 9.693