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All results from a given calculation for CHOCH(CH3)CH3 (Propanal, 2-methyl-)

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-232.391578
Energy at 298.15K-232.399982
Nuclear repulsion energy176.139756
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 B1B95/6-311G*
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' 3132 3002 29.92      
2 A' 3123 2994 65.10      
3 A' 3086 2958 4.76      
4 A' 3048 2922 21.25      
5 A' 2853 2735 130.02      
6 A' 1849 1773 211.98      
7 A' 1524 1461 20.62      
8 A' 1516 1453 10.27      
9 A' 1430 1371 2.35      
10 A' 1417 1358 5.14      
11 A' 1315 1261 0.76      
12 A' 1186 1136 2.36      
13 A' 1183 1134 7.16      
14 A' 933 894 17.66      
15 A' 850 815 24.28      
16 A' 546 523 6.50      
17 A' 342 328 6.90      
18 A' 325 312 0.17      
19 A' 229 220 1.04      
20 A" 3131 3002 19.44      
21 A" 3117 2988 3.92      
22 A" 3046 2920 26.72      
23 A" 1502 1440 2.28      
24 A" 1498 1436 1.53      
25 A" 1404 1346 5.75      
26 A" 1347 1291 0.61      
27 A" 1145 1098 0.53      
28 A" 997 956 0.31      
29 A" 955 916 0.47      
30 A" 931 892 1.57      
31 A" 320 307 0.56      
32 A" 208 199 0.07      
33 A" 67 64 5.27      

Unscaled Zero Point Vibrational Energy (zpe) 24777.4 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 23751.6 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 B1B95/6-311G*
ABC
0.25906 0.12502 0.09451

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.306 0.564 2.166
H2 0.306 0.564 -2.166
H3 -1.030 1.344 -1.312
H4 -1.030 1.344 1.312
H5 0.580 2.058 1.267
H6 0.580 2.058 -1.267
C7 0.037 1.111 -1.261
C8 0.037 1.111 1.261
H9 1.423 0.034 0.000
C10 0.368 0.316 0.000
C11 -0.425 -0.966 0.000
H12 -1.531 -0.817 0.000
O13 0.037 -2.073 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.33153.80601.76681.76473.75403.48011.09112.49422.18092.75073.15823.4233
H24.33151.76683.80603.75401.76471.09113.48012.49422.18092.75073.15823.4233
H33.80601.76682.62353.12291.76151.09342.79473.07512.17552.72472.57793.8131
H41.76683.80602.62351.76153.12292.79471.09343.07512.17552.72472.57793.8131
H51.76473.75403.12291.76152.53452.75351.09152.53312.16523.42963.78584.3554
H63.75401.76471.76153.12292.53451.09152.75352.53312.16523.42963.78584.3554
C73.48011.09111.09342.79472.75351.09152.52132.16141.52702.47352.78733.4250
C81.09113.48012.79471.09341.09152.75352.52132.16141.52702.47352.78733.4250
H92.49422.49423.07513.07512.53312.53312.16142.16141.09242.10153.07462.5219
C102.18092.18092.17552.17552.16522.16521.52701.52701.09241.50712.21132.4115
C112.75072.75072.72472.72473.42963.42962.47352.47352.10151.50711.11591.2000
H123.15823.15822.57792.57793.78583.78582.78732.78733.07462.21131.11592.0093
O133.42333.42333.81313.81314.35544.35543.42503.42502.52192.41151.20002.0093

picture of Propanal, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C8 H4 107.955 H1 C8 H5 107.912
H1 C8 C10 111.734 H2 C7 H3 107.955
H2 C7 H6 107.912 H2 C7 C10 111.734
H3 C7 H6 107.455 H3 C7 C10 111.160
H4 C8 H5 107.455 H4 C8 C10 111.160
H5 C8 C10 110.457 H6 C7 C10 110.457
C7 C10 C8 111.291 C7 C10 H9 110.100
C7 C10 C11 109.219 C8 C10 H9 110.100
C8 C10 C11 109.219 H9 C10 C11 106.797
C10 C11 H12 114.101 C10 C11 O13 125.579
H12 C11 O13 120.320
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.237      
2 H 0.237      
3 H 0.220      
4 H 0.220      
5 H 0.231      
6 H 0.231      
7 C -0.647      
8 C -0.647      
9 H 0.236      
10 C -0.344      
11 C 0.159      
12 H 0.146      
13 O -0.279      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.436 2.714 0.000 2.749
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.864 1.016 0.000
y 1.016 -38.072 0.000
z 0.000 0.000 -30.951
Traceless
 xyz
x 3.647 1.016 0.000
y 1.016 -7.164 0.000
z 0.000 0.000 3.517
Polar
3z2-r27.034
x2-y27.208
xy1.016
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.694 -0.139 0.000
y -0.139 7.883 0.000
z 0.000 0.000 6.590


<r2> (average value of r2) Å2
<r2> 133.870
(<r2>)1/2 11.570