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All results from a given calculation for C4H6O (Furan, 2,5-dihydro-)

using model chemistry: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-231.309057
Energy at 298.15K-231.316253
HF Energy-231.309057
Nuclear repulsion energy174.222836
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/aug-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 A1 3218 3113 6.96      
2 A1 2983 2886 5.45      
3 A1 1683 1628 0.11      
4 A1 1522 1473 2.06      
5 A1 1388 1343 2.98      
6 A1 1118 1082 0.94      
7 A1 989 957 7.99      
8 A1 902 873 22.66      
9 A1 753 729 6.67      
10 A2 2994 2896 0.00      
11 A2 1224 1184 0.00      
12 A2 1064 1029 0.00      
13 A2 959 928 0.00      
14 A2 405 392 0.00      
15 B1 2995 2898 80.61      
16 B1 1181 1142 2.26      
17 B1 1027 994 16.87      
18 B1 680 658 39.34      
19 B1 118 114 8.68      
20 B2 3195 3091 3.16      
21 B2 2979 2882 152.29      
22 B2 1513 1464 0.46      
23 B2 1373 1328 5.23      
24 B2 1334 1290 0.63      
25 B2 1099 1063 100.18      
26 B2 918 888 0.18      
27 B2 814 788 3.23      

Unscaled Zero Point Vibrational Energy (zpe) 20213.3 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 19556.4 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 B3LYP/aug-cc-pVTZ
ABC
0.26752 0.26465 0.14001

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.186
C2 0.000 1.173 0.369
C3 0.000 0.662 -1.041
C4 0.000 -0.662 -1.041
C5 0.000 -1.173 0.369
H6 0.884 1.781 0.596
H7 -0.884 1.781 0.596
H8 -0.884 -1.781 0.596
H9 0.884 -1.781 0.596
H10 0.000 1.309 -1.905
H11 0.000 -1.309 -1.905

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.42972.32312.32311.42972.07412.07412.07412.07413.35703.3570
C21.42971.49912.31402.34611.09701.09703.09203.09202.27813.3661
C32.32311.49911.32452.31402.17112.17113.07123.07121.07972.1524
C42.32312.31401.32451.49913.07123.07122.17112.17112.15241.0797
C51.42972.34612.31401.49913.09203.09201.09701.09703.36612.2781
H62.07411.09702.17113.07123.09201.76843.97703.56222.69514.0729
H72.07411.09702.17113.07123.09201.76843.56223.97702.69514.0729
H82.07413.09203.07122.17111.09703.97703.56221.76844.07292.6951
H92.07413.09203.07122.17111.09703.56223.97701.76844.07292.6951
H103.35702.27811.07972.15243.36612.69512.69514.07294.07292.6176
H113.35703.36612.15241.07972.27814.07294.07292.69512.69512.6176

picture of Furan, 2,5-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 104.948 O1 C2 H6 109.640
O1 C2 H7 109.640 O1 C5 C4 104.948
O1 C5 H8 109.640 O1 C5 H9 109.640
C2 O1 C5 110.262 C2 C3 C4 109.921
C2 C3 H10 123.294 C3 C2 H6 112.584
C3 C2 H7 112.584 C3 C4 C5 109.921
C3 C4 H11 126.785 C4 C3 H10 126.785
C4 C5 H8 112.584 C4 C5 H9 112.584
C5 C4 H11 123.294 H6 C2 H7 107.415
H8 C5 H9 107.415
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability