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

using model chemistry: TPSSh/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 TPSSh/3-21G*
 hartrees
Energy at 0K-210.243693
Energy at 298.15K-210.251053
HF Energy-210.243693
Nuclear repulsion energy158.220928
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 TPSSh/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' 3135 3027 27.25      
2 A' 3127 3020 31.94      
3 A' 3059 2954 3.13      
4 A' 3054 2949 14.82      
5 A' 2302 2223 3.42      
6 A' 1574 1520 13.62      
7 A' 1567 1513 9.15      
8 A' 1466 1416 4.53      
9 A' 1379 1331 2.11      
10 A' 1212 1170 4.63      
11 A' 1163 1123 9.85      
12 A' 921 890 0.93      
13 A' 769 743 0.35      
14 A' 582 562 1.81      
15 A' 351 339 0.12      
16 A' 293 283 0.78      
17 A' 235 227 0.77      
18 A" 3131 3024 14.00      
19 A" 3123 3016 2.46      
20 A" 3052 2947 16.53      
21 A" 1554 1500 1.42      
22 A" 1553 1500 3.46      
23 A" 1448 1398 6.00      
24 A" 1332 1287 0.15      
25 A" 1125 1086 3.63      
26 A" 981 948 0.70      
27 A" 961 928 3.35      
28 A" 611 590 0.76      
29 A" 231 223 0.05      
30 A" 210 203 2.58      

Unscaled Zero Point Vibrational Energy (zpe) 22749.7 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 21969.4 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 TPSSh/3-21G*
ABC
0.26268 0.13081 0.09609

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.155 -2.219 0.000
C2 -0.111 -1.079 0.000
C3 -0.423 0.354 0.000
C4 0.155 1.023 1.277
C5 0.155 1.023 -1.277
H6 -1.517 0.462 0.000
H7 -0.103 2.089 1.273
H8 -0.255 0.560 2.181
H9 1.246 0.921 1.288
H10 -0.103 2.089 -1.273
H11 -0.255 0.560 -2.181
H12 1.246 0.921 -1.288

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.17062.63703.48463.48463.15924.49943.55673.56494.49943.55673.5649
C21.17061.46642.47392.47392.08593.41402.73242.73833.41402.73242.7383
C32.63701.46641.55361.55361.09922.17582.19762.18312.17582.19762.1831
C43.48462.47391.55362.55492.17781.09651.09531.09582.77663.51382.7895
C53.48462.47391.55362.55492.17782.77663.51382.78951.09651.09531.0958
H63.15922.08591.09922.17782.17782.50382.52213.08282.50382.52213.0828
H74.49943.41402.17581.09652.77662.50381.78451.78432.54703.78113.1215
H83.55672.73242.19761.09533.51382.52211.78451.78393.78114.36303.7973
H93.56492.73832.18311.09582.78953.08281.78431.78393.12153.79732.5756
H104.49943.41402.17582.77661.09652.50382.54703.78113.12151.78451.7843
H113.55672.73242.19763.51381.09532.52213.78114.36303.79731.78451.7839
H123.56492.73832.18312.78951.09583.08283.12153.79732.57561.78431.7839

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 179.202 C2 C3 C4 109.967
C2 C3 C5 109.967 C2 C3 H6 107.930
C3 C4 H7 109.151 C3 C4 H8 110.934
C3 C4 H9 109.763 C3 C5 H10 109.151
C3 C5 H11 110.934 C3 C5 H12 109.763
C4 C3 C5 110.617 C4 C3 H6 109.154
C5 C3 H6 109.154 H7 C4 H8 109.005
H7 C4 H9 108.951 H8 C4 H9 109.005
H10 C5 H11 109.005 H10 C5 H12 108.951
H11 C5 H12 109.005
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.500      
2 C 0.398      
3 C -0.386      
4 C -0.548      
5 C -0.548      
6 H 0.269      
7 H 0.213      
8 H 0.224      
9 H 0.221      
10 H 0.213      
11 H 0.224      
12 H 0.221      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.624 3.713 0.000 3.765
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.071 -0.352 0.000
y -0.352 7.751 0.000
z 0.000 0.000 5.721


<r2> (average value of r2) Å2
<r2> 129.438
(<r2>)1/2 11.377