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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-271.553794
Energy at 298.15K-271.564564
Nuclear repulsion energy230.670953
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 B1B95/6-31G
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' 3148 3002 37.93      
2 A' 3069 2927 31.91      
3 A' 3058 2917 24.42      
4 A' 3041 2900 29.25      
5 A' 3031 2891 30.99      
6 A' 2972 2834 125.55      
7 A' 1754 1673 110.16      
8 A' 1550 1479 10.97      
9 A' 1537 1466 1.43      
10 A' 1529 1458 1.45      
11 A' 1491 1422 21.52      
12 A' 1456 1388 5.38      
13 A' 1442 1375 8.99      
14 A' 1416 1350 1.56      
15 A' 1390 1326 14.58      
16 A' 1308 1248 11.62      
17 A' 1161 1107 15.08      
18 A' 1109 1057 0.53      
19 A' 1071 1021 0.75      
20 A' 949 905 1.58      
21 A' 924 881 11.62      
22 A' 698 665 12.56      
23 A' 399 380 1.89      
24 A' 289 275 4.93      
25 A' 133 127 6.10      
26 A" 3143 2997 60.74      
27 A" 3119 2975 26.02      
28 A" 3077 2935 6.66      
29 A" 3062 2921 8.35      
30 A" 1539 1468 9.71      
31 A" 1343 1281 0.26      
32 A" 1326 1264 0.01      
33 A" 1259 1201 0.00      
34 A" 1179 1124 0.29      
35 A" 997 951 1.13      
36 A" 877 837 0.54      
37 A" 766 731 2.26      
38 A" 699 667 6.66      
39 A" 229 218 0.00      
40 A" 181 172 1.16      
41 A" 105 100 1.46      
42 A" 61 58 2.09      

Unscaled Zero Point Vibrational Energy (zpe) 31441.9 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 29986.2 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 B1B95/6-31G
ABC
0.33939 0.04919 0.04436

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.802 -2.064 0.000
C2 -0.376 -1.136 0.000
C3 0.000 0.341 0.000
C4 -1.220 1.265 0.000
C5 -0.835 2.743 0.000
O6 1.978 -1.693 0.000
H7 0.563 -3.143 0.000
H8 -0.999 -1.386 0.873
H9 -0.999 -1.386 -0.873
H10 0.628 0.552 -0.873
H11 0.628 0.552 0.873
H12 -1.842 1.046 0.878
H13 -1.842 1.046 -0.878
H14 -1.718 3.388 0.000
H15 -0.238 2.992 -0.883
H16 -0.238 2.992 0.883

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.49962.53523.89465.07821.23331.10512.11332.11332.76372.76374.17544.17546.00625.23725.2372
C21.49961.52422.54473.90632.41932.21531.10091.10092.14982.14982.77152.77154.71884.22414.2241
C32.53521.52421.53012.54312.83753.52892.17742.17741.09641.09642.15892.15893.49792.80472.8047
C43.89462.54471.53011.52794.35634.75412.79892.79892.16472.16471.09821.09822.18082.17482.1748
C55.07823.90632.54311.52795.25306.04954.22324.22322.77552.77552.16042.16041.09371.09491.0949
O61.23332.41932.83754.35635.25302.02643.11793.11792.76182.76184.78214.78216.28335.25785.2578
H71.10512.21533.52894.75416.04952.02642.50752.50753.79743.79744.90894.90896.91736.24986.2498
H82.11331.10092.17742.79894.22323.11792.50751.74533.07452.53052.57343.11254.90554.77804.4436
H92.11331.10092.17742.79894.22323.11792.50751.74532.53053.07453.11252.57344.90554.44364.7780
H102.76372.14981.09642.16472.77552.76183.79743.07452.53051.74693.06822.51913.78272.58923.1290
H112.76372.14981.09642.16472.77552.76183.79742.53053.07451.74692.51913.06823.78273.12902.5892
H124.17542.77152.15891.09822.16044.78214.90892.57343.11253.06822.51911.75632.50423.07672.5225
H134.17542.77152.15891.09822.16044.78214.90893.11252.57342.51913.06821.75632.50422.52253.0767
H146.00624.71883.49792.18081.09376.28336.91734.90554.90553.78273.78272.50422.50421.76891.7689
H155.23724.22412.80472.17481.09495.25786.24984.77804.44362.58923.12903.07672.52251.76891.7670
H165.23724.22412.80472.17481.09495.25786.24984.44364.77803.12902.58922.52253.07671.76891.7670

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.946 C1 C2 H8 107.721
C1 C2 H9 107.721 C2 C1 O6 124.274
C2 C1 H7 115.701 C2 C3 C4 112.851
C2 C3 H10 109.149 C2 C3 H11 109.149
C3 C2 H8 111.055 C3 C2 H9 111.055
C3 C4 C5 112.529 C3 C4 H12 109.353
C3 C4 H13 109.353 C4 C3 H10 109.907
C4 C3 H11 109.907 C4 C5 H14 111.503
C4 C5 H15 110.951 C4 C5 H16 110.951
C5 C4 H12 109.613 C5 C4 H13 109.613
O6 C1 H7 120.025 H8 C2 H9 104.867
H10 C3 H11 105.619 H12 C4 H13 106.179
H14 C5 H15 107.842 H14 C5 H16 107.842
H15 C5 H16 107.585
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.217      
2 C -0.390      
3 C -0.274      
4 C -0.295      
5 C -0.456      
6 O -0.386      
7 H 0.131      
8 H 0.182      
9 H 0.182      
10 H 0.168      
11 H 0.168      
12 H 0.146      
13 H 0.146      
14 H 0.152      
15 H 0.154      
16 H 0.154      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.861 -0.168 0.000 2.866
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.299 4.321 0.000
y 4.321 -35.979 0.000
z 0.000 0.000 -37.070
Traceless
 xyz
x -8.775 4.321 0.000
y 4.321 5.205 0.000
z 0.000 0.000 3.569
Polar
3z2-r27.139
x2-y2-9.320
xy4.321
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.497 -0.326 0.000
y -0.326 9.065 0.000
z 0.000 0.000 6.525


<r2> (average value of r2) Å2
<r2> 250.455
(<r2>)1/2 15.826