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All results from a given calculation for CHOCH2CH2CH3 (Butanal)

using model chemistry: HF/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-230.986940
Energy at 298.15K-230.995783
HF Energy-230.986940
Nuclear repulsion energy172.796921
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/6-31G*
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' 3268 2936 54.64      
2 A' 3227 2900 17.56      
3 A' 3198 2873 36.01      
4 A' 3184 2861 51.30      
5 A' 3140 2822 112.25      
6 A' 2026 1820 199.09      
7 A' 1652 1485 4.28      
8 A' 1635 1469 1.57      
9 A' 1606 1443 8.98      
10 A' 1571 1412 4.97      
11 A' 1561 1402 3.59      
12 A' 1548 1391 21.80      
13 A' 1448 1301 2.33      
14 A' 1230 1105 12.45      
15 A' 1120 1006 1.23      
16 A' 1037 932 5.99      
17 A' 925 831 2.66      
18 A' 742 667 23.68      
19 A' 371 333 1.44      
20 A' 213 192 10.15      
21 A" 3273 2941 81.89      
22 A" 3244 2915 6.91      
23 A" 3205 2880 15.46      
24 A" 1645 1478 5.46      
25 A" 1448 1301 0.19      
26 A" 1378 1239 0.00      
27 A" 1279 1149 0.22      
28 A" 1039 934 0.49      
29 A" 862 774 1.01      
30 A" 734 660 1.50      
31 A" 262 236 0.03      
32 A" 175 157 3.28      
33 A" 91 81 3.03      

Unscaled Zero Point Vibrational Energy (zpe) 26667.7 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 23960.9 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/6-31G*
ABC
0.51242 0.08539 0.07623

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.276 -0.368 0.000
H2 2.794 -1.322 0.000
H3 2.602 0.184 0.877
H4 2.602 0.184 -0.877
C5 0.762 -0.570 0.000
H6 0.465 -1.150 -0.867
H7 0.465 -1.150 0.867
C8 0.000 0.752 0.000
H9 0.265 1.358 0.867
H10 0.265 1.358 -0.867
C11 -1.500 0.601 0.000
H12 -2.060 1.543 0.000
O13 -2.078 -0.437 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 C11 H12 O13
C11.08511.08651.08651.52782.15462.15462.53702.78892.78893.89834.73874.3551
H21.08511.75321.75322.16682.49052.49053.47963.78563.78564.70455.63624.9519
H31.08651.75321.75442.17353.06402.51902.80412.61583.14374.21524.93474.8021
H41.08651.75321.75442.17352.51903.06402.80413.14372.61584.21524.93474.8021
C51.52782.16682.17352.17351.08491.08491.52582.17152.17152.54663.52512.8432
H62.15462.49053.06402.51901.08491.73432.14223.05612.51682.77153.79272.7806
H72.15462.49052.51903.06401.08491.73432.14222.51683.05612.77153.79272.7806
C82.53703.47962.80412.80411.52582.14222.14221.09001.09001.50742.20652.3946
H92.78893.78562.61583.14372.17153.05612.51681.09001.73302.10662.48783.0764
H102.78893.78563.14372.61582.17152.51683.05611.09001.73302.10662.48783.0764
C113.89834.70454.21524.21522.54662.77152.77151.50742.10662.10661.09611.1883
H124.73875.63624.93474.93473.52513.79273.79272.20652.48782.48781.09611.9802
O134.35514.95194.80214.80212.84322.78062.78062.39463.07643.07641.18831.9802

picture of Butanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.958 C1 C5 H7 109.958
C1 C5 C8 112.369 H2 C1 H3 107.671
H2 C1 H4 107.671 H2 C1 C5 110.914
H3 C1 H4 107.679 H3 C1 C5 111.364
H4 C1 C5 111.364 C5 C8 H9 111.130
C5 C8 H10 111.130 C5 C8 C11 114.183
H6 C5 H7 106.127 H6 C5 C8 109.115
H7 C5 C8 109.115 C8 C11 H12 114.971
C8 C11 O13 124.900 H9 C8 H10 105.303
H9 C8 C11 107.304 H10 C8 C11 107.304
H12 C11 O13 120.129
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.484      
2 H 0.170      
3 H 0.157      
4 H 0.157      
5 C -0.299      
6 H 0.179      
7 H 0.179      
8 C -0.427      
9 H 0.184      
10 H 0.184      
11 C 0.332      
12 H 0.144      
13 O -0.474      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.802 2.163 0.000 2.815
CHELPG 1.827 2.178 0.000 2.843
AIM -1.051 -1.406 0.000 1.756
ESP 1.826 2.179 0.000 2.843


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.392 -4.226 0.005
y -4.226 -30.910 0.001
z 0.005 0.001 -30.779
Traceless
 xyz
x -6.548 -4.226 0.005
y -4.226 3.176 0.001
z 0.005 0.001 3.372
Polar
3z2-r26.743
x2-y2-6.483
xy-4.226
xz0.005
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.937 0.009 -0.000
y 0.009 6.588 -0.001
z -0.000 -0.001 5.167


<r2> (average value of r2) Å2
<r2> 154.342
(<r2>)1/2 12.423