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 CH3CH(CH3)CN (Propanenitrile, 2-methyl-)

using model chemistry: BLYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-311G**
 hartrees
Energy at 0K-211.340935
Energy at 298.15K-211.348066
HF Energy-211.340935
Nuclear repulsion energy157.698948
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 BLYP/6-311G**
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' 3039 3027 28.05      
2 A' 3034 3022 43.35      
3 A' 2968 2957 19.32      
4 A' 2943 2931 5.59      
5 A' 2250 2241 6.23      
6 A' 1478 1472 10.28      
7 A' 1467 1461 8.39      
8 A' 1388 1383 2.18      
9 A' 1312 1307 5.07      
10 A' 1156 1151 3.50      
11 A' 1099 1094 3.80      
12 A' 890 887 0.59      
13 A' 743 740 0.39      
14 A' 537 535 1.08      
15 A' 345 344 0.17      
16 A' 275 274 0.85      
17 A' 214 213 1.57      
18 A" 3037 3026 16.76      
19 A" 3029 3017 0.63      
20 A" 2965 2954 18.72      
21 A" 1457 1452 1.80      
22 A" 1455 1449 2.44      
23 A" 1367 1362 2.92      
24 A" 1283 1278 0.75      
25 A" 1080 1076 3.41      
26 A" 939 935 0.06      
27 A" 917 913 1.57      
28 A" 558 556 0.09      
29 A" 219 218 0.01      
30 A" 185 184 3.98      

Unscaled Zero Point Vibrational Energy (zpe) 21813.1 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 21728.0 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 BLYP/6-311G**
ABC
0.25933 0.13004 0.09477

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.404 -2.195 0.000
C2 0.027 -1.093 0.000
C3 -0.436 0.307 0.000
C4 0.027 1.038 1.290
C5 0.027 1.038 -1.290
H6 -1.539 0.271 0.000
H7 -0.375 2.061 1.299
H8 -0.326 0.519 2.191
H9 1.123 1.096 1.333
H10 -0.375 2.061 -1.299
H11 -0.326 0.519 -2.191
H12 1.123 1.096 -1.333

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.16522.63993.50233.50233.13964.51833.56363.62304.51833.56363.6230
C21.16521.47482.49172.49172.07643.43512.74262.78743.43512.74262.7874
C32.63991.47481.55381.55381.10332.18382.20372.19782.18382.20372.1978
C43.50232.49171.55382.58082.16941.09901.09781.09872.81323.53742.8438
C53.50232.49171.55382.58082.16942.81323.53742.84381.09901.09781.0987
H63.13962.07641.10332.16942.16942.49992.51643.08942.49992.51643.0894
H74.51833.43512.18381.09902.81322.49991.78231.78272.59863.81613.1789
H83.56362.74262.20371.09783.53742.51641.78231.78013.81614.38153.8535
H93.62302.78742.19781.09872.84383.08941.78271.78013.17893.85352.6658
H104.51833.43512.18382.81321.09902.49992.59863.81613.17891.78231.7827
H113.56362.74262.20373.53741.09782.51643.81614.38153.85351.78231.7801
H123.62302.78742.19782.84381.09873.08943.17893.85352.66581.78271.7801

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 179.408 C2 C3 C4 110.690
C2 C3 C5 110.690 C2 C3 H6 106.404
C3 C4 H7 109.624 C3 C4 H8 111.256
C3 C4 H9 110.734 C3 C5 H10 109.624
C3 C5 H11 111.256 C3 C5 H12 110.734
C4 C3 C5 112.294 C4 C3 H6 108.263
C5 C3 H6 108.263 H7 C4 H8 108.453
H7 C4 H9 108.420 H8 C4 H9 108.275
H10 C5 H11 108.453 H10 C5 H12 108.420
H11 C5 H12 108.275
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.199      
2 C 0.044      
3 C -0.184      
4 C -0.259      
5 C -0.259      
6 H 0.151      
7 H 0.111      
8 H 0.123      
9 H 0.119      
10 H 0.111      
11 H 0.123      
12 H 0.119      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.118 3.746 0.000 3.910
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.028 1.692 0.000
y 1.692 -39.580 0.000
z 0.000 0.000 -30.512
Traceless
 xyz
x 4.018 1.692 0.000
y 1.692 -8.810 0.000
z 0.000 0.000 4.791
Polar
3z2-r29.583
x2-y28.552
xy1.692
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.160 -0.623 0.000
y -0.623 8.883 0.000
z 0.000 0.000 7.008


<r2> (average value of r2) Å2
<r2> 131.172
(<r2>)1/2 11.453