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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-210.114721
Energy at 298.15K-210.122168
HF Energy-210.114721
Nuclear repulsion energy159.245288
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 B1B95/3-21G
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' 3175 3038 16.80      
2 A' 3168 3031 24.73      
3 A' 3097 2963 2.42      
4 A' 3086 2953 11.35      
5 A' 2373 2270 4.20      
6 A' 1571 1503 16.47      
7 A' 1564 1496 12.57      
8 A' 1469 1405 7.90      
9 A' 1390 1330 2.20      
10 A' 1221 1168 5.55      
11 A' 1172 1121 11.33      
12 A' 945 904 1.25      
13 A' 788 754 0.46      
14 A' 595 569 1.83      
15 A' 360 344 0.13      
16 A' 299 286 0.86      
17 A' 240 229 0.84      
18 A" 3173 3036 10.86      
19 A" 3164 3027 1.01      
20 A" 3085 2951 12.13      
21 A" 1550 1483 6.29      
22 A" 1550 1483 0.04      
23 A" 1451 1388 11.92      
24 A" 1340 1282 0.06      
25 A" 1143 1094 3.63      
26 A" 997 954 0.09      
27 A" 973 931 4.99      
28 A" 623 596 0.43      
29 A" 236 226 0.07      
30 A" 214 205 2.72      

Unscaled Zero Point Vibrational Energy (zpe) 23005.2 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 22009.1 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 B1B95/3-21G
ABC
0.26656 0.13250 0.09741

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.153 -2.204 0.000
C2 -0.109 -1.073 0.000
C3 -0.420 0.352 0.000
C4 0.153 1.016 1.267
C5 0.153 1.016 -1.267
H6 -1.511 0.458 0.000
H7 -0.103 2.078 1.265
H8 -0.252 0.556 2.170
H9 1.241 0.917 1.277
H10 -0.103 2.078 -1.265
H11 -0.252 0.556 -2.170
H12 1.241 0.917 -1.277

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.16142.61943.46053.46053.13944.47263.53453.54284.47263.53453.5428
C21.16141.45812.45722.45722.07553.39542.71722.72223.39542.71722.7222
C32.61941.45811.54141.54141.09572.16372.18622.17002.16372.18622.1700
C43.46052.45721.54142.53412.16471.09251.09141.09212.75783.49142.7686
C53.46052.45721.54142.53412.16472.75783.49142.76861.09251.09141.0921
H63.13942.07551.09572.16472.16472.49152.51073.06792.49152.51073.0679
H74.47263.39542.16371.09252.75782.49151.77701.77632.53023.76023.1012
H83.53452.71722.18621.09143.49142.51071.77701.77653.76024.34023.7737
H93.54282.72222.17001.09212.76863.06791.77631.77653.10123.77372.5540
H104.47263.39542.16372.75781.09252.49152.53023.76023.10121.77701.7763
H113.53452.71722.18623.49141.09142.51073.76024.34023.77371.77701.7765
H123.54282.72222.17002.76861.09213.06793.10123.77372.55401.77631.7765

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 179.263 C2 C3 C4 109.980
C2 C3 C5 109.980 C2 C3 H6 107.884
C3 C4 H7 109.285 C3 C4 H8 111.123
C3 C4 H9 109.797 C3 C5 H10 109.285
C3 C5 H11 111.123 C3 C5 H12 109.797
C4 C3 C5 110.581 C4 C3 H6 109.181
C5 C3 H6 109.181 H7 C4 H8 108.910
H7 C4 H9 108.794 H8 C4 H9 108.891
H10 C5 H11 108.910 H10 C5 H12 108.794
H11 C5 H12 108.891
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.489      
2 C 0.390      
3 C -0.402      
4 C -0.564      
5 C -0.564      
6 H 0.275      
7 H 0.220      
8 H 0.230      
9 H 0.227      
10 H 0.220      
11 H 0.230      
12 H 0.227      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.630 3.710 0.000 3.763
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.032 0.740 0.000
y 0.740 -38.742 0.000
z 0.000 0.000 -29.711
Traceless
 xyz
x 4.195 0.740 0.000
y 0.740 -8.871 0.000
z 0.000 0.000 4.676
Polar
3z2-r29.353
x2-y28.711
xy0.740
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.999 -0.345 0.000
y -0.345 7.544 0.000
z 0.000 0.000 5.595


<r2> (average value of r2) Å2
<r2> 127.928
(<r2>)1/2 11.311