return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/Def2TZVPP
 hartrees
Energy at 0K-157.294276
Energy at 298.15K-157.302162
HF Energy-157.294276
Nuclear repulsion energy119.876251
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 B3LYP/Def2TZVPP
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 3134 3017 8.97      
2 A1 3107 2991 18.90      
3 A1 3017 2904 40.94      
4 A1 1717 1653 22.28      
5 A1 1503 1447 13.96      
6 A1 1446 1392 1.41      
7 A1 1416 1363 0.37      
8 A1 1085 1045 2.87      
9 A1 816 785 0.20      
10 A1 380 366 0.33      
11 A2 3053 2938 0.00      
12 A2 1472 1417 0.00      
13 A2 1022 984 0.00      
14 A2 704 678 0.00      
15 A2 170 164 0.00      
16 B1 3055 2941 41.97      
17 B1 1490 1434 15.99      
18 B1 1108 1067 0.00      
19 B1 926 891 46.53      
20 B1 443 426 8.25      
21 B1 210 202 0.45      
22 B2 3213 3093 17.95      
23 B2 3105 2989 26.00      
24 B2 3011 2899 18.18      
25 B2 1484 1429 3.98      
26 B2 1411 1359 9.02      
27 B2 1299 1250 3.43      
28 B2 989 952 0.45      
29 B2 962 926 0.06      
30 B2 440 424 1.56      

Unscaled Zero Point Vibrational Energy (zpe) 23593.6 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 22711.2 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 B3LYP/Def2TZVPP
ABC
0.30660 0.28054 0.15483

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.113
C2 0.000 0.000 1.447
H3 0.000 0.922 2.015
H4 0.000 -0.922 2.015
C5 0.000 1.287 -0.673
C6 0.000 -1.287 -0.673
H7 0.000 2.150 -0.011
H8 0.877 1.346 -1.322
H9 -0.877 1.346 -1.322
H10 0.000 -2.150 -0.011
H11 -0.877 -1.346 -1.322
H12 0.877 -1.346 -1.322

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10 H11 H12
C11.33332.11302.11301.50811.50812.15382.15442.15442.15382.15442.1544
C21.33331.08261.08262.47972.47972.59783.20123.20122.59783.20123.2012
H32.11301.08261.84312.71263.47872.36943.47643.47643.67974.12874.1287
H42.11301.08261.84313.47872.71263.67974.12874.12872.36943.47643.4764
C51.50812.47972.71263.47872.57361.08791.09291.09293.50012.84982.8498
C61.50812.47973.47872.71262.57363.50012.84982.84981.08791.09291.0929
H72.15382.59782.36943.67971.08793.50011.77081.77084.30033.83533.8353
H82.15443.20123.47644.12871.09292.84981.77081.75443.83533.21282.6915
H92.15443.20123.47644.12871.09292.84981.77081.75443.83532.69153.2128
H102.15382.59783.67972.36943.50011.08794.30033.83533.83531.77081.7708
H112.15443.20124.12873.47642.84981.09293.83533.21282.69151.77081.7544
H122.15443.20124.12873.47642.84981.09293.83532.69153.21281.77081.7544

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 121.655 C1 C2 H4 121.655
C1 C5 H7 111.095 C1 C5 H8 110.842
C1 C5 H9 110.842 C1 C6 H10 111.095
C1 C6 H11 110.842 C1 C6 H12 110.842
C2 C1 C5 121.431 C2 C1 C6 121.431
H3 C2 H4 116.691 C5 C1 C6 117.138
H7 C5 H8 108.579 H7 C5 H9 108.579
H8 C5 H9 106.766 H10 C6 H11 108.579
H10 C6 H12 108.579 H11 C6 H12 106.766
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.004      
2 C -0.229      
3 H 0.085      
4 H 0.085      
5 C -0.217      
6 C -0.217      
7 H 0.078      
8 H 0.083      
9 H 0.083      
10 H 0.078      
11 H 0.083      
12 H 0.083      


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 -0.563 0.563
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.386 0.000 0.000
y 0.000 -26.043 0.000
z 0.000 0.000 -26.615
Traceless
 xyz
x -2.056 0.000 0.000
y 0.000 1.457 0.000
z 0.000 0.000 0.599
Polar
3z2-r21.198
x2-y2-2.342
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.748 0.000 0.000
y 0.000 7.584 0.000
z 0.000 0.000 9.335


<r2> (average value of r2) Å2
<r2> 90.882
(<r2>)1/2 9.533