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

using model chemistry: PBEPBE/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 PBEPBE/6-31G
 hartrees
Energy at 0K-211.043614
Energy at 298.15K-211.050771
HF Energy-211.043614
Nuclear repulsion energy157.293294
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
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' 3091 3049 22.80      
2 A' 3086 3043 37.92      
3 A' 2995 2954 18.25      
4 A' 2967 2926 6.31      
5 A' 2223 2193 7.76      
6 A' 1508 1488 13.58      
7 A' 1500 1479 11.73      
8 A' 1419 1399 4.06      
9 A' 1333 1314 4.05      
10 A' 1183 1167 4.97      
11 A' 1124 1108 8.29      
12 A' 921 908 1.76      
13 A' 762 751 0.30      
14 A' 545 537 1.52      
15 A' 351 346 0.18      
16 A' 276 272 0.48      
17 A' 212 209 1.22      
18 A" 3089 3047 15.14      
19 A" 3081 3039 0.59      
20 A" 2993 2952 18.65      
21 A" 1489 1469 2.51      
22 A" 1487 1467 3.55      
23 A" 1401 1381 7.69      
24 A" 1300 1282 0.54      
25 A" 1112 1097 4.15      
26 A" 969 956 0.01      
27 A" 939 926 3.44      
28 A" 555 547 0.79      
29 A" 222 219 0.02      
30 A" 180 178 2.96      

Unscaled Zero Point Vibrational Energy (zpe) 22156.0 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 21850.2 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 PBEPBE/6-31G
ABC
0.26118 0.12874 0.09444

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.413 -2.211 0.000
C2 0.025 -1.090 0.000
C3 -0.441 0.307 0.000
C4 0.025 1.042 1.283
C5 0.025 1.042 -1.283
H6 -1.550 0.279 0.000
H7 -0.376 2.070 1.286
H8 -0.326 0.526 2.192
H9 1.126 1.098 1.319
H10 -0.376 2.070 -1.286
H11 -0.326 0.526 -2.192
H12 1.126 1.098 -1.319

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.18532.65863.51793.51793.16974.53813.58313.63284.53813.58313.6328
C21.18531.47332.48872.48872.08683.43492.74592.78243.43492.74592.7824
C32.65861.47331.55041.55041.10932.18242.20552.19582.18242.20552.1958
C43.51792.48871.55042.56682.17021.10311.10201.10302.79613.53062.8267
C53.51792.48871.55042.56682.17022.79613.53062.82671.10311.10201.1030
H63.16972.08681.10932.17022.17022.49772.52223.09392.49772.52223.0939
H74.53813.43492.18241.10312.79612.49771.79011.78912.57203.80503.1604
H83.58312.74592.20551.10203.53062.52221.79011.78803.80504.38333.8424
H93.63282.78242.19581.10302.82673.09391.78911.78803.16043.84242.6390
H104.53813.43492.18242.79611.10312.49772.57203.80503.16041.79011.7891
H113.58312.74592.20553.53061.10202.52223.80504.38333.84241.79011.7880
H123.63282.78242.19582.82671.10303.09393.16043.84242.63901.78911.7880

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 179.369 C2 C3 C4 110.756
C2 C3 C5 110.756 C2 C3 H6 106.959
C3 C4 H7 109.514 C3 C4 H8 111.390
C3 C4 H9 110.559 C3 C5 H10 109.514
C3 C5 H11 111.390 C3 C5 H12 110.559
C4 C3 C5 111.744 C4 C3 H6 108.220
C5 C3 H6 108.220 H7 C4 H8 108.548
H7 C4 H9 108.389 H8 C4 H9 108.366
H10 C5 H11 108.548 H10 C5 H12 108.389
H11 C5 H12 108.366
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.297      
2 C 0.169      
3 C -0.216      
4 C -0.437      
5 C -0.437      
6 H 0.201      
7 H 0.163      
8 H 0.174      
9 H 0.172      
10 H 0.163      
11 H 0.174      
12 H 0.172      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.115 3.793 0.000 3.953
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.431 1.846 0.000
y 1.846 -39.168 0.000
z 0.000 0.000 -29.730
Traceless
 xyz
x 4.019 1.846 0.000
y 1.846 -9.087 0.000
z 0.000 0.000 5.069
Polar
3z2-r210.138
x2-y28.737
xy1.846
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.563 -0.731 0.000
y -0.731 8.333 0.000
z 0.000 0.000 6.097


<r2> (average value of r2) Å2
<r2> 131.183
(<r2>)1/2 11.454