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All results from a given calculation for CH3CH(CH3)CN (Propanenitrile, 2-methyl-)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-211.300656
Energy at 298.15K-211.307896
HF Energy-211.300656
Nuclear repulsion energy158.815541
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3159 3023 20.69      
2 A' 3153 3016 33.36      
3 A' 3071 2938 16.56      
4 A' 3057 2925 4.89      
5 A' 2370 2267 9.34      
6 A' 1535 1468 10.75      
7 A' 1525 1459 8.84      
8 A' 1444 1382 3.03      
9 A' 1364 1305 6.17      
10 A' 1205 1153 3.42      
11 A' 1137 1087 5.79      
12 A' 943 902 1.16      
13 A' 781 747 0.60      
14 A' 556 532 1.45      
15 A' 352 336 0.19      
16 A' 287 274 0.92      
17 A' 221 212 2.07      
18 A" 3158 3021 12.40      
19 A" 3149 3013 0.86      
20 A" 3069 2936 16.73      
21 A" 1513 1448 3.85      
22 A" 1512 1446 0.49      
23 A" 1422 1361 4.31      
24 A" 1334 1277 0.46      
25 A" 1143 1093 2.16      
26 A" 982 939 0.26      
27 A" 947 906 2.64      
28 A" 575 550 0.02      
29 A" 229 219 0.01      
30 A" 188 179 4.52      

Unscaled Zero Point Vibrational Energy (zpe) 22690.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 21707.7 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 B3PW91/6-31G*
ABC
0.26448 0.13173 0.09630

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.402 -2.183 0.000
C2 0.027 -1.084 0.000
C3 -0.437 0.310 0.000
C4 0.027 1.029 1.276
C5 0.027 1.029 -1.276
H6 -1.535 0.272 0.000
H7 -0.368 2.051 1.286
H8 -0.324 0.514 2.174
H9 1.120 1.082 1.315
H10 -0.368 2.051 -1.286
H11 -0.324 0.514 -2.174
H12 1.120 1.082 -1.315

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.16132.63003.47643.47643.12684.49093.53923.59254.49093.53923.5925
C21.16131.46882.46822.46822.06833.41082.72082.75963.41082.72082.7596
C32.63001.46881.53621.53621.09902.16532.18672.17952.16532.18672.1795
C43.47642.46821.53622.55132.15441.09521.09401.09482.78573.50592.8127
C53.47642.46821.53622.55132.15442.78573.50592.81271.09521.09401.0948
H63.12682.06831.09902.15442.15442.48622.50043.07182.48622.50043.0718
H74.49093.41082.16531.09522.78572.48621.77591.77532.57153.78633.1492
H83.53922.72082.18671.09403.50592.50041.77591.77393.78634.34863.8193
H93.59252.75962.17951.09482.81273.07181.77531.77393.14923.81932.6309
H104.49093.41082.16532.78571.09522.48622.57153.78633.14921.77591.7753
H113.53922.72082.18673.50591.09402.50043.78634.34863.81931.77591.7739
H123.59252.75962.17952.81271.09483.07183.14923.81932.63091.77531.7739

picture of Propanenitrile, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 179.584 C2 C3 C4 110.421
C2 C3 C5 110.421 C2 C3 H6 106.421
C3 C4 H7 109.608 C3 C4 H8 111.372
C3 C4 H9 110.746 C3 C5 H10 109.608
C3 C5 H11 111.372 C3 C5 H12 110.746
C4 C3 C5 112.280 C4 C3 H6 108.544
C5 C3 H6 108.544 H7 C4 H8 108.436
H7 C4 H9 108.320 H8 C4 H9 108.275
H10 C5 H11 108.436 H10 C5 H12 108.320
H11 C5 H12 108.275
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.488      
2 C 0.371      
3 C -0.220      
4 C -0.505      
5 C -0.505      
6 H 0.215      
7 H 0.181      
8 H 0.194      
9 H 0.190      
10 H 0.181      
11 H 0.194      
12 H 0.190      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.125 3.826 0.000 3.988
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.062 1.728 0.000
y 1.728 -38.666 0.000
z 0.000 0.000 -29.531
Traceless
 xyz
x 4.036 1.728 0.000
y 1.728 -8.869 0.000
z 0.000 0.000 4.833
Polar
3z2-r29.666
x2-y28.603
xy1.728
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.533 -0.657 0.000
y -0.657 8.102 0.000
z 0.000 0.000 6.079


<r2> (average value of r2) Å2
<r2> 128.884
(<r2>)1/2 11.353