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

using model chemistry: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-211.109738
Energy at 298.15K-211.116843
HF Energy-211.109738
Nuclear repulsion energy158.195094
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 PBEPBE/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3079 3048 15.32      
2 A' 3072 3040 26.41      
3 A' 2988 2958 14.69      
4 A' 2966 2936 4.36      
5 A' 2270 2247 7.45      
6 A' 1461 1446 7.87      
7 A' 1449 1434 7.40      
8 A' 1368 1354 1.66      
9 A' 1295 1282 6.19      
10 A' 1155 1143 2.63      
11 A' 1086 1075 3.76      
12 A' 912 902 1.57      
13 A' 760 752 0.35      
14 A' 539 533 1.17      
15 A' 339 336 0.18      
16 A' 275 272 0.91      
17 A' 212 210 1.79      
18 A" 3078 3047 10.23      
19 A" 3069 3037 0.33      
20 A" 2987 2956 14.18      
21 A" 1438 1423 2.54      
22 A" 1435 1420 1.00      
23 A" 1345 1331 2.71      
24 A" 1269 1256 0.92      
25 A" 1097 1086 2.47      
26 A" 944 935 0.20      
27 A" 904 895 2.11      
28 A" 558 552 0.00      
29 A" 217 215 0.02      
30 A" 182 180 4.04      

Unscaled Zero Point Vibrational Energy (zpe) 21874.0 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 21648.7 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 PBEPBE/6-31G(2df,p)
ABC
0.26252 0.13087 0.09568

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.405 -2.190 0.000
C2 0.027 -1.084 0.000
C3 -0.438 0.308 0.000
C4 0.027 1.033 1.280
C5 0.027 1.033 -1.280
H6 -1.544 0.271 0.000
H7 -0.372 2.060 1.289
H8 -0.324 0.514 2.184
H9 1.126 1.087 1.318
H10 -0.372 2.060 -1.289
H11 -0.324 0.514 -2.184
H12 1.126 1.087 -1.318

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.16922.63713.48873.48873.13964.50863.55163.60524.50863.55163.6052
C21.16921.46802.47402.47402.07433.42112.72892.76763.42112.72892.7676
C32.63711.46801.54271.54271.10632.17562.19702.18852.17562.19702.1885
C43.48872.47401.54272.56022.16471.10141.10011.10122.79513.52072.8215
C53.48872.47401.54272.56022.16472.79513.52072.82151.10141.10011.1012
H63.13962.07431.10632.16472.16472.49712.51383.08722.49712.51383.0872
H74.50863.42112.17561.10142.79512.49711.78741.78582.57773.80213.1596
H83.55162.72892.19701.10013.52072.51381.78741.78363.80214.36873.8335
H93.60522.76762.18851.10122.82153.08721.78581.78363.15963.83352.6357
H104.50863.42112.17562.79511.10142.49712.57773.80213.15961.78741.7858
H113.55162.72892.19703.52071.10012.51383.80214.36873.83351.78741.7836
H123.60522.76762.18852.82151.10123.08723.15963.83352.63571.78581.7836

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 179.563 C2 C3 C4 110.496
C2 C3 C5 110.496 C2 C3 H6 106.523
C3 C4 H7 109.608 C3 C4 H8 111.369
C3 C4 H9 110.630 C3 C5 H10 109.608
C3 C5 H11 111.369 C3 C5 H12 110.630
C4 C3 C5 112.159 C4 C3 H6 108.482
C5 C3 H6 108.482 H7 C4 H8 108.571
H7 C4 H9 108.341 H8 C4 H9 108.242
H10 C5 H11 108.571 H10 C5 H12 108.341
H11 C5 H12 108.242
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.360      
2 C 0.316      
3 C -0.144      
4 C -0.412      
5 C -0.412      
6 H 0.142      
7 H 0.136      
8 H 0.150      
9 H 0.149      
10 H 0.136      
11 H 0.150      
12 H 0.149      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.099 3.738 0.000 3.896
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.099 1.693 0.000
y 1.693 -38.523 0.000
z 0.000 0.000 -29.605
Traceless
 xyz
x 3.965 1.693 0.000
y 1.693 -8.671 0.000
z 0.000 0.000 4.707
Polar
3z2-r29.413
x2-y28.424
xy1.693
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.919 -0.621 0.000
y -0.621 8.610 0.000
z 0.000 0.000 6.673


<r2> (average value of r2) Å2
<r2> 129.630
(<r2>)1/2 11.386