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All results from a given calculation for CH2C(CH3)CH3 (1-Propene, 2-methyl-)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-155.247137
Energy at 298.15K-155.255291
Nuclear repulsion energy120.029178
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/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 A1 3312 2989 9.63      
2 A1 3268 2950 16.99      
3 A1 3187 2877 36.15      
4 A1 1875 1692 14.05      
5 A1 1672 1509 12.23      
6 A1 1607 1450 0.90      
7 A1 1583 1429 0.92      
8 A1 1209 1091 3.76      
9 A1 833 752 0.00      
10 A1 405 366 0.34      
11 A2 3223 2909 0.00      
12 A2 1647 1486 0.00      
13 A2 1145 1033 0.00      
14 A2 779 704 0.00      
15 A2 176 159 0.00      
16 B1 3229 2915 53.16      
17 B1 1666 1504 20.56      
18 B1 1244 1123 4.56      
19 B1 1091 985 62.78      
20 B1 477 431 10.81      
21 B1 212 191 0.65      
22 B2 3383 3053 20.33      
23 B2 3266 2948 26.24      
24 B2 3181 2871 16.08      
25 B2 1657 1495 5.39      
26 B2 1569 1417 11.57      
27 B2 1405 1268 6.99      
28 B2 1100 993 0.76      
29 B2 1029 929 0.39      
30 B2 480 433 0.99      

Unscaled Zero Point Vibrational Energy (zpe) 25456.0 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 22976.6 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 HF/3-21G*
ABC
0.30654 0.28033 0.15474

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.134
C2 0.000 0.000 1.452
H3 0.000 0.912 2.019
H4 0.000 -0.912 2.019
C5 0.000 1.276 -0.681
C6 0.000 -1.276 -0.681
H7 0.000 2.153 -0.047
H8 0.876 1.314 -1.322
H9 -0.876 1.314 -1.322
H10 0.000 -2.153 -0.047
H11 -0.876 -1.314 -1.322
H12 0.876 -1.314 -1.322

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10 H11 H12
C11.31802.09352.09351.51411.51412.16092.14842.14842.16092.14842.1484
C21.31801.07391.07392.48582.48582.62393.19263.19262.62393.19263.1926
H32.09351.07391.82492.72403.47512.40963.47723.47723.69674.10924.1092
H42.09351.07391.82493.47512.72403.69674.10924.10922.40963.47723.4772
C51.51412.48582.72403.47512.55151.08261.08641.08643.48712.80782.8078
C61.51412.48583.47512.72402.55153.48712.80782.80781.08261.08641.0864
H72.16092.62392.40963.69671.08263.48711.76041.76044.30653.79653.7965
H82.14843.19263.47724.10921.08642.80781.76041.75223.79653.15802.6273
H92.14843.19263.47724.10921.08642.80781.76041.75223.79652.62733.1580
H102.16092.62393.69672.40963.48711.08264.30653.79653.79651.76041.7604
H112.14843.19264.10923.47722.80781.08643.79653.15802.62731.76041.7522
H122.14843.19264.10923.47722.80781.08643.79652.62733.15801.76041.7522

picture of 1-Propene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H3 121.821 C1 C2 H4 121.821
C1 C5 H7 111.560 C1 C5 H8 110.325
C1 C5 H9 110.325 C1 C6 H10 111.560
C1 C6 H11 110.325 C1 C6 H12 110.325
C2 C1 C5 122.589 C2 C1 C6 122.589
H3 C2 H4 116.359 C5 C1 C6 114.822
H7 C5 H8 108.508 H7 C5 H9 108.508
H8 C5 H9 107.497 H10 C6 H11 108.508
H10 C6 H12 108.508 H11 C6 H12 107.497
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.058 0.246    
2 C -0.416 -0.639    
3 H 0.201 0.216    
4 H 0.201 0.216    
5 C -0.599 -0.251    
6 C -0.599 -0.251    
7 H 0.212 0.077    
8 H 0.211 0.077    
9 H 0.211 0.077    
10 H 0.212 0.077    
11 H 0.211 0.077    
12 H 0.211 0.077    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.478 0.478
CHELPG 0.000 0.000 -0.449 0.449
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.698 0.000 0.000
y 0.000 -25.770 0.000
z 0.000 0.000 -26.097
Traceless
 xyz
x -2.765 0.000 0.000
y 0.000 1.627 0.000
z 0.000 0.000 1.138
Polar
3z2-r22.275
x2-y2-2.928
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.732 0.000 0.000
y 0.000 5.700 0.000
z 0.000 0.000 7.826


<r2> (average value of r2) Å2
<r2> 90.695
(<r2>)1/2 9.523