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All results from a given calculation for C5H10O (Pentanal)

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-270.091390
Energy at 298.15K-270.102528
Nuclear repulsion energy231.889674
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 HF/6-311G**
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' 3220 2925 63.36      
2 A' 3178 2887 34.60      
3 A' 3157 2868 16.15      
4 A' 3149 2861 85.32      
5 A' 3142 2855 8.24      
6 A' 3077 2796 132.67      
7 A' 2006 1822 217.52      
8 A' 1628 1479 7.57      
9 A' 1615 1467 0.22      
10 A' 1608 1461 0.97      
11 A' 1578 1434 10.43      
12 A' 1549 1408 4.59      
13 A' 1538 1397 2.83      
14 A' 1534 1394 19.57      
15 A' 1493 1356 11.37      
16 A' 1391 1264 2.30      
17 A' 1221 1109 10.22      
18 A' 1134 1030 2.06      
19 A' 1102 1001 3.54      
20 A' 977 888 0.38      
21 A' 958 870 7.33      
22 A' 738 671 23.20      
23 A' 420 382 2.17      
24 A' 315 286 5.50      
25 A' 149 136 5.99      
26 A" 3224 2929 134.98      
27 A" 3210 2916 0.12      
28 A" 3166 2877 5.99      
29 A" 3165 2876 19.69      
30 A" 1615 1467 6.56      
31 A" 1438 1306 0.15      
32 A" 1421 1291 0.15      
33 A" 1344 1221 0.05      
34 A" 1271 1154 0.00      
35 A" 1061 964 1.07      
36 A" 929 844 0.00      
37 A" 801 728 1.07      
38 A" 729 662 1.65      
39 A" 264 240 0.00      
40 A" 185 168 2.90      
41 A" 119 108 1.36      
42 A" 79 72 3.39      

Unscaled Zero Point Vibrational Energy (zpe) 32949.1 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 29934.2 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 HF/6-311G**
ABC
0.35453 0.04875 0.04423

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.872 -2.042 0.000
C2 -0.331 -1.134 0.000
C3 0.000 0.354 0.000
C4 -1.248 1.237 0.000
C5 -0.919 2.728 0.000
O6 1.997 -1.679 0.000
H7 0.638 -3.116 0.000
H8 -0.934 -1.405 0.867
H9 -0.934 -1.405 -0.867
H10 0.612 0.582 -0.868
H11 0.612 0.582 0.868
H12 -1.858 1.002 0.871
H13 -1.858 1.002 -0.871
H14 -1.823 3.329 0.000
H15 -0.339 3.001 -0.878
H16 -0.339 3.001 0.878

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
C11.50672.54933.90395.09491.18261.09912.10222.10222.77582.77584.18034.18036.00925.25935.2593
C21.50671.52442.54183.90672.39132.20591.09051.09052.14202.14202.76672.76674.70634.22684.2268
C32.54931.52441.52862.54582.85033.52792.17202.17201.08651.08652.15192.15193.48962.80892.8089
C43.90392.54181.52861.52744.36304.74342.79762.79762.15472.15471.08891.08892.17042.17002.1700
C55.09493.90672.54581.52745.28506.04774.22284.22282.77562.77562.14912.14911.08591.08681.0868
O61.18262.39132.85034.36305.28501.97753.06953.06952.79032.79034.77624.77626.29965.30385.3038
H71.09912.20593.52794.74346.04771.97752.48042.48043.79843.79844.89364.89366.89906.25576.2557
H82.10221.09052.17202.79764.22283.06952.48041.73453.05782.51772.57813.10964.89414.77554.4454
H92.10221.09052.17202.79764.22283.06952.48041.73452.51773.05783.10962.57814.89414.44544.7755
H102.77582.14201.08652.15472.77562.79033.79843.05782.51771.73613.05012.50553.77272.59893.1307
H112.77582.14201.08652.15472.77562.79033.79842.51773.05781.73612.50553.05013.77273.13072.5989
H124.18032.76672.15191.08892.14914.77624.89362.57813.10963.05012.50551.74282.48493.05932.5100
H134.18032.76672.15191.08892.14914.77624.89363.10962.57812.50553.05011.74282.48492.51003.0593
H146.00924.70633.48962.17041.08596.29966.89904.89414.89413.77273.77272.48492.48491.75571.7557
H155.25934.22682.80892.17001.08685.30386.25574.77554.44542.59893.13073.05932.51001.75571.7551
H165.25934.22682.80892.17001.08685.30386.25574.44544.77553.13072.59892.51003.05931.75571.7551

picture of Pentanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 114.503 C1 C2 H8 106.984
C1 C2 H9 106.984 C2 C1 O6 125.117
C2 C1 H7 114.774 C2 C3 C4 112.728
C2 C3 H10 109.102 C2 C3 H11 109.102
C3 C2 H8 111.239 C3 C2 H9 111.239
C3 C4 C5 112.826 C3 C4 H12 109.446
C3 C4 H13 109.446 C4 C3 H10 109.814
C4 C3 H11 109.814 C4 C5 H14 111.172
C4 C5 H15 111.095 C4 C5 H16 111.095
C5 C4 H12 109.304 C5 C4 H13 109.304
O6 C1 H7 120.109 H8 C2 H9 105.359
H10 C3 H11 106.058 H12 C4 H13 106.305
H14 C5 H15 107.810 H14 C5 H16 107.810
H15 C5 H16 107.698
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.292      
2 C -0.265      
3 C -0.166      
4 C -0.199      
5 C -0.231      
6 O -0.379      
7 H 0.068      
8 H 0.115      
9 H 0.115      
10 H 0.105      
11 H 0.105      
12 H 0.086      
13 H 0.086      
14 H 0.092      
15 H 0.088      
16 H 0.088      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.844 -0.306 0.000 2.860
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.321 4.195 0.000
y 4.195 -36.501 0.000
z 0.000 0.000 -37.454
Traceless
 xyz
x -9.344 4.195 0.000
y 4.195 5.386 0.000
z 0.000 0.000 3.957
Polar
3z2-r27.914
x2-y2-9.820
xy4.195
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.560 -0.302 0.000
y -0.302 9.358 0.000
z 0.000 0.000 6.846


<r2> (average value of r2) Å2
<r2> 251.321
(<r2>)1/2 15.853