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

using model chemistry: wB97X-D/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-231.114349
Energy at 298.15K-231.122970
HF Energy-231.114349
Nuclear repulsion energy174.806532
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 wB97X-D/3-21G*
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' 3166 3001 22.66      
2 A' 3163 2998 32.46      
3 A' 3136 2972 1.88      
4 A' 3079 2919 13.51      
5 A' 2907 2755 103.83      
6 A' 1792 1699 123.74      
7 A' 1581 1498 28.16      
8 A' 1575 1493 11.11      
9 A' 1484 1406 7.95      
10 A' 1457 1381 3.31      
11 A' 1349 1279 0.38      
12 A' 1221 1157 1.12      
13 A' 1206 1143 3.06      
14 A' 933 885 27.12      
15 A' 865 820 27.31      
16 A' 550 521 5.37      
17 A' 361 342 5.98      
18 A' 352 334 1.49      
19 A' 257 244 0.73      
20 A" 3164 2999 8.71      
21 A" 3150 2985 5.83      
22 A" 3078 2917 16.65      
23 A" 1563 1481 4.62      
24 A" 1556 1474 0.77      
25 A" 1462 1386 14.73      
26 A" 1376 1304 0.29      
27 A" 1161 1100 2.02      
28 A" 1010 958 0.00      
29 A" 1000 948 1.15      
30 A" 977 926 3.90      
31 A" 353 334 0.83      
32 A" 234 222 0.11      
33 A" 72 69 4.31      

Unscaled Zero Point Vibrational Energy (zpe) 25294.9 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 23974.5 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 wB97X-D/3-21G*
ABC
0.25759 0.12244 0.09300

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.299 0.570 2.173
H2 0.299 0.570 -2.173
H3 -1.042 1.340 -1.295
H4 -1.042 1.340 1.295
H5 0.572 2.075 1.270
H6 0.572 2.075 -1.270
C7 0.032 1.122 -1.266
C8 0.032 1.122 1.266
H9 1.441 0.041 0.000
C10 0.383 0.318 0.000
C11 -0.421 -0.965 0.000
H12 -1.514 -0.771 0.000
O13 0.032 -2.103 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.34673.79711.77851.77603.76723.49381.09472.51182.18962.75643.13193.4559
H24.34671.77853.79713.76721.77601.09473.49382.51182.18962.75643.13193.4559
H33.79711.77852.58943.11791.77371.09692.78583.08742.18002.71572.52123.8328
H41.77853.79712.58941.77373.11792.78581.09693.08742.18002.71572.52123.8328
H51.77603.76723.11791.77372.53932.76211.09472.55012.17553.44033.74994.4000
H63.76721.77601.77373.11792.53931.09472.76212.55012.17553.44033.74994.4000
C73.49381.09471.09692.78582.76211.09472.53262.18121.54052.48282.75313.4653
C81.09473.49382.78581.09691.09472.76212.53262.18121.54052.48282.75313.4653
H92.51182.51183.08743.08742.55012.55012.18122.18121.09382.11643.06492.5657
C102.18962.18962.18002.18002.17552.17551.54051.54051.09381.51412.18772.4469
C112.75642.75642.71572.71573.44033.44032.48282.48282.11641.51411.11011.2257
H123.13193.13192.52122.52123.74993.74992.75312.75313.06492.18771.11012.0414
O133.45593.45593.83283.83284.40004.40003.46533.46532.56572.44691.22572.0414

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 108.490 H1 C8 H5 108.426
H1 C8 C10 111.260 H2 C7 H3 108.490
H2 C7 H6 108.426 H2 C7 C10 111.260
H3 C7 H6 108.061 H3 C7 C10 110.374
H4 C8 H5 108.061 H4 C8 C10 110.374
H5 C8 C10 110.142 H6 C7 C10 110.142
C7 C10 C8 110.574 C7 C10 H9 110.645
C7 C10 C11 108.742 C8 C10 H9 110.645
C8 C10 C11 108.742 H9 C10 C11 107.400
C10 C11 H12 112.032 C10 C11 O13 126.205
H12 C11 O13 121.763
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.224      
2 H 0.224      
3 H 0.208      
4 H 0.208      
5 H 0.222      
6 H 0.222      
7 C -0.588      
8 C -0.588      
9 H 0.245      
10 C -0.418      
11 C 0.310      
12 H 0.161      
13 O -0.432      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.433 2.754 0.000 2.788
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.621 0.870 0.000
y 0.870 -37.903 0.000
z 0.000 0.000 -30.514
Traceless
 xyz
x 3.587 0.870 0.000
y 0.870 -7.335 0.000
z 0.000 0.000 3.748
Polar
3z2-r27.495
x2-y27.282
xy0.870
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.766 -0.162 0.000
y -0.162 6.946 0.000
z 0.000 0.000 5.532


<r2> (average value of r2) Å2
<r2> 135.321
(<r2>)1/2 11.633