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All results from a given calculation for CHOCH2CH2CH3 (Butanal)

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-232.305236
Energy at 298.15K-232.313876
Nuclear repulsion energy171.143342
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 B3PW91/6-31G
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' 3138 3005 36.03      
2 A' 3069 2939 17.60      
3 A' 3046 2917 29.49      
4 A' 3019 2891 33.60      
5 A' 2956 2831 126.85      
6 A' 1745 1671 110.51      
7 A' 1548 1483 10.34      
8 A' 1535 1470 3.35      
9 A' 1492 1429 22.32      
10 A' 1461 1400 1.62      
11 A' 1442 1381 8.75      
12 A' 1417 1357 12.89      
13 A' 1346 1289 14.05      
14 A' 1164 1114 15.14      
15 A' 1081 1035 0.03      
16 A' 1002 960 5.95      
17 A' 882 844 8.02      
18 A' 702 673 13.67      
19 A' 355 340 0.78      
20 A' 200 191 9.81      
21 A" 3133 3000 61.22      
22 A" 3105 2974 0.26      
23 A" 3049 2920 8.33      
24 A" 1545 1480 9.96      
25 A" 1345 1288 0.21      
26 A" 1279 1225 0.41      
27 A" 1176 1126 0.02      
28 A" 972 931 0.06      
29 A" 817 782 1.62      
30 A" 699 670 7.57      
31 A" 246 236 0.03      
32 A" 175 167 1.61      
33 A" 76 73 1.98      

Unscaled Zero Point Vibrational Energy (zpe) 25107.8 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 24045.7 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 B3PW91/6-31G
ABC
0.49566 0.08471 0.07536

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.284 -0.365 0.000
H2 2.806 -1.328 0.000
H3 2.614 0.192 0.886
H4 2.614 0.192 -0.886
C5 0.766 -0.564 0.000
H6 0.462 -1.153 -0.874
H7 0.462 -1.153 0.874
C8 0.000 0.760 0.000
H9 0.275 1.374 0.874
H10 0.275 1.374 -0.874
C11 -1.496 0.614 0.000
H12 -2.065 1.564 0.000
O13 -2.096 -0.466 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 C11 H12 O13
C11.09551.09721.09721.53102.16932.16932.54582.79712.79713.90424.75754.3809
H21.09551.76981.76982.17872.50842.50843.49763.80433.80434.71985.66504.9773
H31.09721.76981.77132.18443.08862.53802.81772.62073.15644.22514.95584.8374
H41.09721.76981.77132.18442.53803.08862.81773.15642.62074.22514.95584.8374
C51.53102.17872.18442.18441.09721.09721.52922.18212.18212.54983.54142.8634
H62.16932.50843.08862.53801.09721.74872.15293.07862.53422.77793.81162.7888
H72.16932.50842.53803.08861.09721.74872.15292.53423.07862.77793.81162.7888
C82.54583.49762.81772.81771.52922.15292.15291.10321.10321.50262.21612.4278
H92.79713.80432.62073.15642.18213.07862.53421.10321.74712.11602.50533.1261
H102.79713.80433.15642.62072.18212.53423.07861.10321.74712.11602.50533.1261
C113.90424.71984.22514.22512.54982.77792.77791.50262.11602.11601.10741.2355
H124.75755.66504.95584.95583.54143.81163.81162.21612.50532.50531.10742.0298
O134.38094.97734.83744.83742.86342.78882.78882.42783.12613.12611.23552.0298

picture of Butanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.160 C1 C5 H7 110.160
C1 C5 C8 112.597 H2 C1 H3 107.636
H2 C1 H4 107.636 H2 C1 C5 111.013
H3 C1 H4 107.647 H3 C1 C5 111.362
H4 C1 C5 111.362 C5 C8 H9 110.946
C5 C8 H10 110.946 C5 C8 C11 114.497
H6 C5 H7 105.666 H6 C5 C8 109.006
H7 C5 C8 109.006 C8 C11 H12 115.390
C8 C11 O13 124.631 H9 C8 H10 104.714
H9 C8 C11 107.601 H10 C8 C11 107.601
H12 C11 O13 119.979
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.482      
2 H 0.166      
3 H 0.157      
4 H 0.157      
5 C -0.294      
6 H 0.177      
7 H 0.177      
8 C -0.393      
9 H 0.187      
10 H 0.187      
11 C 0.217      
12 H 0.136      
13 O -0.392      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.951 2.113 0.000 2.876
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.849 -4.081 0.000
y -4.081 -30.676 0.000
z 0.000 0.000 -30.574
Traceless
 xyz
x -6.224 -4.081 0.000
y -4.081 3.035 0.000
z 0.000 0.000 3.189
Polar
3z2-r26.377
x2-y2-6.173
xy-4.081
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 155.696
(<r2>)1/2 12.478