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All results from a given calculation for C5H8O (2H-Pyran, 3,4-dihydro-)

using model chemistry: B3LYP/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 B3LYP/6-31G
 hartrees
Energy at 0K-270.468213
Energy at 298.15K-270.478124
Nuclear repulsion energy238.599233
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/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 3247 3124 22.89      
2 A 3205 3084 7.77      
3 A 3145 3026 33.40      
4 A 3104 2986 45.24      
5 A 3064 2947 47.65      
6 A 3051 2935 10.49      
7 A 3041 2925 43.11      
8 A 3011 2897 39.56      
9 A 1718 1653 52.18      
10 A 1546 1487 2.68      
11 A 1534 1476 3.73      
12 A 1528 1470 1.67      
13 A 1443 1388 1.04      
14 A 1410 1356 3.79      
15 A 1394 1341 0.58      
16 A 1383 1331 6.35      
17 A 1308 1258 3.43      
18 A 1285 1237 32.69      
19 A 1260 1212 24.37      
20 A 1224 1178 4.33      
21 A 1129 1086 4.62      
22 A 1096 1055 58.78      
23 A 1068 1028 45.87      
24 A 1051 1011 3.02      
25 A 970 933 0.34      
26 A 939 904 8.12      
27 A 915 880 4.94      
28 A 881 847 15.07      
29 A 824 793 11.59      
30 A 774 744 11.37      
31 A 748 720 21.25      
32 A 515 495 5.11      
33 A 498 479 2.78      
34 A 450 433 18.14      
35 A 278 268 0.75      
36 A 173 166 5.57      

Unscaled Zero Point Vibrational Energy (zpe) 27104.4 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 26074.4 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/6-31G
ABC
0.16784 0.15670 0.08811

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.731 1.803 -0.194
C2 0.934 1.079 -0.080
H3 -0.647 2.437 0.085
C4 -0.363 1.390 0.058
H5 -2.293 0.619 -0.504
H6 -1.846 0.257 1.155
C7 -1.444 0.334 0.132
H8 -0.797 -1.049 -1.417
H9 -1.559 -1.849 -0.037
C10 -0.886 -1.032 -0.324
H11 0.954 -2.199 -0.059
H12 0.441 -1.282 1.383
C13 0.498 -1.270 0.286
O14 1.447 -0.218 -0.106

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 C7 H8 H9 C10 H11 H12 C13 O14
H11.08292.47692.14914.20554.12323.51344.00274.91813.86054.07933.69693.34572.0427
C21.08292.09091.34093.28673.15042.50083.05183.84592.79803.27832.82042.41671.3951
H32.47692.09091.08522.52182.70782.24933.79914.38423.50154.90704.08623.88493.3872
C42.14911.34091.08522.15282.16411.51292.88373.45452.50753.82503.08842.80492.4270
H54.20553.28672.52182.15281.75581.09842.41942.61742.17694.32203.82693.46113.8531
H64.12323.15042.70782.16411.75581.10133.06932.43762.18413.91702.76542.92893.5582
C73.51342.50082.24931.51291.09841.10132.17542.19321.54493.49332.77972.52322.9533
H84.00273.05183.79912.88372.41943.06932.17541.76751.09702.49643.07012.15072.7287
H94.91813.84594.38423.45452.61742.43762.19321.76751.09662.53672.51742.16103.4210
C103.86052.79803.50152.50752.17692.18411.54491.09701.09662.19452.17591.53062.4808
H114.07933.27834.90703.82504.32203.91703.49332.49642.53672.19451.78421.09112.0424
H123.69692.82044.08623.08843.82692.76542.77973.07012.51742.17591.78421.09842.0888
C133.34572.41673.88492.80493.46112.92892.52322.15072.16101.53061.09111.09841.4704
O142.04271.39513.38722.42703.85313.55822.95332.72873.42102.48082.04242.08881.4704

picture of 2H-Pyran, 3,4-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 124.578 H1 C2 O14 110.414
C2 C4 H3 118.666 C2 C4 C7 122.286
C2 O14 C13 114.972 H3 C4 C7 119.016
C4 C2 O14 125.006 C4 C7 H5 110.045
C4 C7 H6 110.766 C4 C7 C10 110.173
H5 C7 H6 105.916 H5 C7 C10 109.732
H6 C7 C10 110.125 C7 C10 H8 109.699
C7 C10 H9 111.126 C7 C10 C13 110.256
H8 C10 H9 107.366 H8 C10 C13 108.748
H9 C10 C13 109.572 C10 C13 H11 112.575
C10 C13 H12 110.640 C10 C13 O14 111.500
H11 C13 H12 109.151 H11 C13 O14 104.786
H12 C13 O14 107.931
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.144      
2 C 0.121      
3 H 0.119      
4 C -0.138      
5 H 0.140      
6 H 0.140      
7 C -0.283      
8 H 0.153      
9 H 0.132      
10 C -0.282      
11 H 0.154      
12 H 0.144      
13 C -0.023      
14 O -0.522      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.607 -0.421 0.360 1.700
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.716 1.181 0.291
y 1.181 -33.022 -0.588
z 0.291 -0.588 -37.580
Traceless
 xyz
x -3.415 1.181 0.291
y 1.181 5.126 -0.588
z 0.291 -0.588 -1.711
Polar
3z2-r2-3.422
x2-y2-5.694
xy1.181
xz0.291
yz-0.588


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.735 -0.301 -0.271
y -0.301 8.532 -0.117
z -0.271 -0.117 5.510


<r2> (average value of r2) Å2
<r2> 143.763
(<r2>)1/2 11.990