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All results from a given calculation for C5H10O (2H-Pyran, tetrahydro-)

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-271.730689
Energy at 298.15K-271.743580
Nuclear repulsion energy260.982972
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 mPW1PW91/6-31G(2df,p)
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' 3116 2975 70.57      
2 A' 3111 2970 11.79      
3 A' 3102 2962 37.08      
4 A' 3058 2919 15.78      
5 A' 3044 2906 24.45      
6 A' 2975 2840 95.68      
7 A' 1507 1438 3.45      
8 A' 1492 1425 6.19      
9 A' 1482 1415 6.66      
10 A' 1428 1363 8.00      
11 A' 1384 1322 1.01      
12 A' 1338 1278 4.77      
13 A' 1290 1231 5.76      
14 A' 1183 1129 3.21      
15 A' 1068 1019 8.88      
16 A' 1031 984 9.42      
17 A' 912 871 18.47      
18 A' 863 824 4.50      
19 A' 845 807 1.37      
20 A' 558 533 3.43      
21 A' 437 417 1.36      
22 A' 397 379 3.62      
23 A' 251 239 3.01      
24 A" 3111 2970 4.18      
25 A" 3108 2967 78.61      
26 A" 3058 2919 24.75      
27 A" 2969 2834 21.59      
28 A" 1492 1424 0.63      
29 A" 1471 1405 1.62      
30 A" 1399 1336 7.81      
31 A" 1383 1321 0.84      
32 A" 1354 1292 0.14      
33 A" 1308 1248 9.65      
34 A" 1243 1187 54.82      
35 A" 1197 1142 0.13      
36 A" 1152 1100 61.02      
37 A" 1074 1025 9.13      
38 A" 984 939 2.45      
39 A" 901 861 0.33      
40 A" 821 783 0.26      
41 A" 462 441 0.01      
42 A" 235 224 0.43      

Unscaled Zero Point Vibrational Energy (zpe) 32295.4 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 30832.4 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 mPW1PW91/6-31G(2df,p)
ABC
0.15743 0.15107 0.08744

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.661 -1.256 0.000
C2 0.627 1.319 0.000
H3 1.697 1.076 0.000
H4 0.553 2.410 0.000
C5 -0.022 0.728 1.250
C6 -0.022 0.728 -1.250
C7 -0.022 -0.794 -1.166
C8 -0.022 -0.794 1.166
H9 0.502 1.048 2.157
H10 0.502 1.048 -2.157
H11 -1.058 1.075 1.332
H12 -1.058 1.075 -1.332
H13 1.017 -1.165 -1.198
H14 1.017 -1.165 1.198
H15 -0.559 -1.239 -2.008
H16 -0.559 -1.239 2.008

Atom - Atom Distances (Å)
  O1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
O12.87893.31653.86192.43022.43021.40811.40813.36333.36332.71352.71352.06402.06402.01062.0106
C22.87891.09781.09391.52781.52782.49882.49882.17732.17732.16122.16122.78542.78543.46113.4611
H33.31651.09781.75812.15422.15422.79482.79482.46612.46613.06023.06022.63042.63043.80523.8052
H43.86191.09391.75812.17392.17393.45773.45772.55162.55162.48002.48003.79943.79944.31084.3108
C52.43021.52782.15422.17392.50092.85561.52341.09473.46211.09582.80383.26432.16003.84332.1744
C62.43021.52782.15422.17392.50091.52342.85563.46211.09472.80381.09582.16003.26432.17443.8433
C71.40812.49882.79483.45772.85561.52342.33283.83522.15553.28712.14301.10422.60891.09313.2500
C81.40812.49882.79483.45771.52342.85562.33282.15553.83522.14303.28712.60891.10423.25001.0931
H93.36332.17732.46612.55161.09473.46213.83522.15554.31361.76493.82134.05172.46664.86812.5250
H103.36332.17732.46612.55163.46211.09472.15553.83524.31363.82131.76492.46664.05172.52504.8681
H112.71352.16123.06022.48001.09582.80383.28712.14301.76493.82132.66323.96523.05684.09312.4615
H122.71352.16123.06022.48002.80381.09582.14303.28713.82131.76492.66323.05683.96522.46154.0931
H132.06402.78542.63043.79943.26432.16001.10422.60894.05172.46663.96523.05682.39511.77413.5729
H142.06402.78542.63043.79942.16003.26432.60891.10422.46664.05173.05683.96522.39513.57291.7741
H152.01063.46113.80524.31083.84332.17441.09313.25004.86812.52504.09312.46151.77413.57294.0158
H162.01063.46113.80524.31082.17443.84333.25001.09312.52504.86812.46154.09313.57291.77414.0158

picture of 2H-Pyran, tetrahydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C7 C6 111.927 O1 C7 H13 109.893
O1 C7 H15 106.314 O1 C8 C5 111.927
O1 C8 H14 109.893 O1 C8 H16 106.314
C2 C5 C8 109.962 C2 C5 H9 111.173
C2 C5 H11 109.830 C2 C6 C7 109.962
C2 C6 H10 111.173 C2 C6 H12 109.830
H3 C2 H4 106.676 H3 C2 C5 109.163
H3 C2 C6 109.163 H4 C2 C5 110.949
H4 C2 C6 110.949 C5 C2 C6 109.861
C5 C8 H14 109.548 C5 C8 H16 111.345
C6 C7 H13 109.548 C6 C7 H15 111.345
C7 O1 C8 111.852 C7 C6 H10 109.750
C7 C6 H12 108.708 C8 C5 H9 109.750
C8 C5 H11 108.708 H9 C5 H11 107.350
H10 C6 H12 107.350 H13 C7 H15 107.687
H14 C8 H16 107.687
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.278      
2 C -0.256      
3 H 0.124      
4 H 0.127      
5 C -0.258      
6 C -0.258      
7 C -0.097      
8 C -0.097      
9 H 0.124      
10 H 0.124      
11 H 0.133      
12 H 0.133      
13 H 0.106      
14 H 0.106      
15 H 0.133      
16 H 0.133      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.878 0.989 0.000 1.323
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.192 -1.509 0.000
y -1.509 -39.512 0.000
z 0.000 0.000 -35.076
Traceless
 xyz
x -0.898 -1.509 0.000
y -1.509 -2.878 0.000
z 0.000 0.000 3.776
Polar
3z2-r27.551
x2-y21.320
xy-1.509
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.537 0.096 0.000
y 0.096 8.188 0.000
z 0.000 0.000 9.064


<r2> (average value of r2) Å2
<r2> 151.061
(<r2>)1/2 12.291