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

using model chemistry: B2PLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP/6-31G*
 hartrees
Energy at 0K-157.013224
Energy at 298.15K-157.021121
HF Energy-156.841865
Nuclear repulsion energy119.522270
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 B2PLYP/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3187 3025 9.40      
2 A1 3162 3001 22.19      
3 A1 3066 2910 35.49      
4 A1 1749 1660 10.63      
5 A1 1552 1473 9.48      
6 A1 1488 1412 0.24      
7 A1 1458 1384 0.00      
8 A1 1110 1053 3.72      
9 A1 830 787 0.05      
10 A1 380 360 0.24      
11 A2 3115 2957 0.00      
12 A2 1522 1444 0.00      
13 A2 1048 995 0.00      
14 A2 716 680 0.00      
15 A2 176 167 0.00      
16 B1 3119 2960 51.29      
17 B1 1538 1460 15.06      
18 B1 1135 1077 0.34      
19 B1 918 871 44.14      
20 B1 435 413 4.97      
21 B1 212 201 0.52      
22 B2 3268 3102 20.57      
23 B2 3160 3000 23.02      
24 B2 3061 2905 19.45      
25 B2 1537 1459 4.04      
26 B2 1458 1384 6.32      
27 B2 1329 1261 3.53      
28 B2 1005 954 0.09      
29 B2 988 938 0.13      
30 B2 439 417 1.41      

Unscaled Zero Point Vibrational Energy (zpe) 24078.2 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 22855.0 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 B2PLYP/6-31G*
ABC
0.30470 0.27894 0.15391

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.112
C2 0.000 0.000 1.453
H3 0.000 0.923 2.025
H4 0.000 -0.923 2.025
C5 0.000 1.290 -0.676
C6 0.000 -1.290 -0.676
H7 0.000 2.157 -0.014
H8 0.879 1.352 -1.327
H9 -0.879 1.352 -1.327
H10 0.000 -2.157 -0.014
H11 -0.879 -1.352 -1.327
H12 0.879 -1.352 -1.327

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10 H11 H12
C11.34082.12352.12351.51191.51192.16072.16142.16142.16072.16142.1614
C21.34081.08551.08552.48952.48952.60853.21383.21382.60853.21383.2138
H32.12351.08551.84562.72573.49162.38303.49143.49143.69334.14504.1450
H42.12351.08551.84563.49162.72573.69334.14504.14502.38303.49143.4914
C51.51192.48952.72573.49162.58021.09101.09551.09553.51022.85962.8596
C61.51192.48953.49162.72572.58023.51022.85962.85961.09101.09551.0955
H72.16072.60852.38303.69331.09103.51021.77341.77344.31413.84853.8485
H82.16143.21383.49144.14501.09552.85961.77341.75813.84853.22542.7041
H92.16143.21383.49144.14501.09552.85961.77341.75813.84852.70413.2254
H102.16072.60853.69332.38303.51021.09104.31413.84853.84851.77341.7734
H112.16143.21384.14503.49142.85961.09553.84853.22542.70411.77341.7581
H122.16143.21384.14503.49142.85961.09553.84852.70413.22541.77341.7581

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 121.778 C1 C2 H4 121.778
C1 C5 H7 111.190 C1 C5 H8 110.978
C1 C5 H9 110.978 C1 C6 H10 111.190
C1 C6 H11 110.978 C1 C6 H12 110.978
C2 C1 C5 121.429 C2 C1 C6 121.429
H3 C2 H4 116.445 C5 C1 C6 117.143
H7 C5 H8 108.402 H7 C5 H9 108.402
H8 C5 H9 106.731 H10 C6 H11 108.402
H10 C6 H12 108.402 H11 C6 H12 106.731
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.197      
2 C -0.398      
3 H 0.139      
4 H 0.139      
5 C -0.513      
6 C -0.513      
7 H 0.159      
8 H 0.158      
9 H 0.158      
10 H 0.159      
11 H 0.158      
12 H 0.158      


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 -0.467 0.467
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.798 0.000 0.000
y 0.000 -25.655 0.000
z 0.000 0.000 -25.979
Traceless
 xyz
x -1.981 0.000 0.000
y 0.000 1.234 0.000
z 0.000 0.000 0.747
Polar
3z2-r21.494
x2-y2-2.144
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.197 0.000 0.000
y 0.000 6.298 0.000
z 0.000 0.000 8.045


<r2> (average value of r2) Å2
<r2> 90.988
(<r2>)1/2 9.539