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

using model chemistry: MP4=FULL/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 MP4=FULL/3-21G
 hartrees
Energy at 0K-209.370961
Energy at 298.15K-209.378356
HF Energy-208.825679
Nuclear repulsion energy156.996378
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 MP4=FULL/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' 3115 3049        
2 A' 3110 3044        
3 A' 3041 2977        
4 A' 3035 2971        
5 A' 2146 2101        
6 A' 1583 1550        
7 A' 1578 1544        
8 A' 1482 1450        
9 A' 1396 1366        
10 A' 1225 1199        
11 A' 1173 1148        
12 A' 911 892        
13 A' 751 735        
14 A' 565 553        
15 A' 365 358        
16 A' 300 293        
17 A' 236 231        
18 A" 3112 3046        
19 A" 3105 3040        
20 A" 3033 2969        
21 A" 1568 1534        
22 A" 1566 1533        
23 A" 1464 1433        
24 A" 1365 1336        
25 A" 1136 1112        
26 A" 992 971        
27 A" 966 946        
28 A" 589 576        
29 A" 245 240        
30 A" 209 204        

Unscaled Zero Point Vibrational Energy (zpe) 22680.1 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 22199.3 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 MP4=FULL/3-21G
ABC
0.26023 0.12798 0.09419

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.154 -2.247 0.000
C2 -0.107 -1.090 0.000
C3 -0.420 0.360 0.000
C4 0.154 1.035 1.285
C5 0.154 1.035 -1.285
H6 -1.516 0.467 0.000
H7 -0.113 2.102 1.283
H8 -0.257 0.566 2.190
H9 1.248 0.941 1.298
H10 -0.113 2.102 -1.283
H11 -0.257 0.566 -2.190
H12 1.248 0.941 -1.298

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.18602.66943.52513.52513.18704.54213.58863.61184.54213.58863.6118
C21.18601.48342.49732.49732.10073.44012.74952.76473.44012.74952.7647
C32.66941.48341.56091.56091.10202.18512.20522.19172.18512.20522.1917
C43.52512.49731.56092.57052.18251.09921.09821.09872.79363.53022.8071
C53.52512.49731.56092.57052.18252.79363.53022.80711.09921.09821.0987
H63.18702.10071.10202.18252.18252.50782.52793.09052.50782.52793.0905
H74.54213.44012.18511.09922.79362.50781.78901.78872.56613.79963.1402
H83.58862.74952.20521.09823.53022.52791.78901.78893.79964.37903.8167
H93.61182.76472.19171.09872.80713.09051.78871.78893.14023.81672.5959
H104.54213.44012.18512.79361.09922.50782.56613.79963.14021.78901.7887
H113.58862.74952.20523.53021.09822.52793.79964.37903.81671.78901.7889
H123.61182.76472.19172.80711.09873.09053.14023.81672.59591.78871.7889

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 179.517 C2 C3 C4 110.202
C2 C3 C5 110.202 C2 C3 H6 107.773
C3 C4 H7 109.221 C3 C4 H8 110.854
C3 C4 H9 109.766 C3 C5 H10 109.221
C3 C5 H11 110.854 C3 C5 H12 109.766
C4 C3 C5 110.850 C4 C3 H6 108.869
C5 C3 H6 108.869 H7 C4 H8 108.996
H7 C4 H9 108.941 H8 C4 H9 109.030
H10 C5 H11 108.996 H10 C5 H12 108.941
H11 C5 H12 109.030
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability