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/TZVP

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/TZVP
 hartrees
Energy at 0K-157.286292
Energy at 298.15K-157.294173
HF Energy-157.286292
Nuclear repulsion energy119.753493
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/TZVP
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 3135 3026 8.96      
2 A1 3108 3001 19.60      
3 A1 3018 2914 41.24      
4 A1 1717 1658 21.32      
5 A1 1506 1454 14.51      
6 A1 1447 1397 1.25      
7 A1 1419 1370 0.60      
8 A1 1086 1048 2.61      
9 A1 814 786 0.15      
10 A1 382 368 0.26      
11 A2 3055 2949 0.00      
12 A2 1474 1423 0.00      
13 A2 1023 988 0.00      
14 A2 702 678 0.00      
15 A2 163 158 0.00      
16 B1 3058 2952 45.90      
17 B1 1493 1441 19.38      
18 B1 1109 1070 0.01      
19 B1 921 889 49.43      
20 B1 442 427 9.10      
21 B1 207 200 0.68      
22 B2 3213 3102 18.89      
23 B2 3107 2999 27.59      
24 B2 3012 2908 19.04      
25 B2 1488 1436 4.78      
26 B2 1414 1365 10.20      
27 B2 1296 1251 4.09      
28 B2 986 952 0.31      
29 B2 961 928 0.02      
30 B2 442 427 1.48      

Unscaled Zero Point Vibrational Energy (zpe) 23598.5 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 22782.0 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/TZVP
ABC
0.30596 0.27996 0.15451

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.124
C2 0.000 0.000 1.456
H3 0.000 0.923 2.024
H4 0.000 -0.923 2.024
C5 0.000 1.274 -0.678
C6 0.000 -1.274 -0.678
H7 0.000 2.156 -0.037
H8 0.878 1.324 -1.330
H9 -0.878 1.324 -1.330
H10 0.000 -2.156 -0.037
H11 -0.878 -1.324 -1.330
H12 0.878 -1.324 -1.330

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10 H11 H12
C11.33182.11262.11261.50511.50512.16192.15382.15382.16192.15382.1538
C21.33181.08381.08382.48462.48462.62193.20713.20712.62193.20713.2071
H32.11261.08381.84532.72463.48212.40163.49063.49063.70474.13194.1319
H42.11261.08381.84533.48212.72463.70474.13194.13192.40163.49063.4906
C51.50512.48462.72463.48212.54801.09031.09501.09503.48932.81922.8192
C61.50512.48463.48212.72462.54803.48932.81922.81921.09031.09501.0950
H72.16192.62192.40163.70471.09033.48931.77081.77084.31193.81533.8153
H82.15383.20713.49064.13191.09502.81921.77081.75543.81533.17762.6487
H92.15383.20713.49064.13191.09502.81921.77081.75543.81532.64873.1776
H102.16192.62193.70472.40163.48931.09034.31193.81533.81531.77081.7708
H112.15383.20714.13193.49062.81921.09503.81533.17762.64871.77081.7554
H122.15383.20714.13193.49062.81921.09503.81532.64873.17761.77081.7554

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 121.646 C1 C2 H4 121.646
C1 C5 H7 111.817 C1 C5 H8 110.874
C1 C5 H9 110.874 C1 C6 H10 111.817
C1 C6 H11 110.874 C1 C6 H12 110.874
C2 C1 C5 122.171 C2 C1 C6 122.171
H3 C2 H4 116.707 C5 C1 C6 115.658
H7 C5 H8 108.257 H7 C5 H9 108.257
H8 C5 H9 106.563 H10 C6 H11 108.257
H10 C6 H12 108.257 H11 C6 H12 106.563
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.020      
2 C -0.239      
3 H 0.099      
4 H 0.099      
5 C -0.350      
6 C -0.350      
7 H 0.121      
8 H 0.120      
9 H 0.120      
10 H 0.121      
11 H 0.120      
12 H 0.120      


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 -0.560 0.560
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.525 0.000 0.000
y 0.000 -26.017 0.000
z 0.000 0.000 -26.634
Traceless
 xyz
x -2.200 0.000 0.000
y 0.000 1.563 0.000
z 0.000 0.000 0.637
Polar
3z2-r21.275
x2-y2-2.508
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.534 0.000 0.000
y 0.000 7.249 0.000
z 0.000 0.000 9.293


<r2> (average value of r2) Å2
<r2> 91.063
(<r2>)1/2 9.543