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

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-209.362975
Energy at 298.15K-209.370363
HF Energy-208.825621
Nuclear repulsion energy156.971228
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 MP4/3-21G
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 3021        
2 A' 3109 3015        
3 A' 3041 2949        
4 A' 3035 2943        
5 A' 2146 2081        
6 A' 1583 1535        
7 A' 1578 1530        
8 A' 1481 1437        
9 A' 1396 1353        
10 A' 1225 1188        
11 A' 1173 1138        
12 A' 911 883        
13 A' 750 728        
14 A' 565 548        
15 A' 365 354        
16 A' 299 290        
17 A' 235 228        
18 A" 3112 3018        
19 A" 3105 3011        
20 A" 3033 2941        
21 A" 1567 1520        
22 A" 1566 1519        
23 A" 1464 1420        
24 A" 1365 1324        
25 A" 1135 1101        
26 A" 991 961        
27 A" 966 936        
28 A" 589 571        
29 A" 244 236        
30 A" 208 202        

Unscaled Zero Point Vibrational Energy (zpe) 22674.3 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 21989.5 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 MP4/3-21G
ABC
0.26012 0.12795 0.09415

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

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 1.286
C5 0.154 1.035 -1.286
H6 -1.517 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
N11.18612.66983.52563.52563.18744.54273.58913.61234.54273.58913.6123
C21.18611.48372.49782.49782.10093.44062.74992.76533.44062.74992.7653
C32.66981.48371.56121.56121.10212.18532.20552.19202.18532.20552.1920
C43.52562.49781.56122.57112.18281.09941.09841.09882.79413.53082.8078
C53.52562.49781.56122.57112.18282.79413.53082.80781.09941.09841.0988
H63.18742.10091.10212.18282.18282.50812.52813.09092.50812.52813.0909
H74.54273.44062.18531.09942.79412.50811.78931.78902.56643.80023.1408
H83.58912.74992.20551.09843.53082.52811.78931.78913.80024.37963.8175
H93.61232.76532.19201.09882.80783.09091.78901.78913.14083.81752.5967
H104.54273.44062.18532.79411.09942.50812.56643.80023.14081.78931.7890
H113.58912.74992.20553.53081.09842.52813.80024.37963.81751.78931.7891
H123.61232.76532.19202.80781.09883.09093.14083.81752.59671.78901.7891

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 179.501 C2 C3 C4 110.205
C2 C3 C5 110.205 C2 C3 H6 107.765
C3 C4 H7 109.213 C3 C4 H8 110.845
C3 C4 H9 109.765 C3 C5 H10 109.213
C3 C5 H11 110.845 C3 C5 H12 109.765
C4 C3 C5 110.859 C4 C3 H6 108.866
C5 C3 H6 108.866 H7 C4 H8 109.003
H7 C4 H9 108.948 H8 C4 H9 109.036
H10 C5 H11 109.003 H10 C5 H12 108.948
H11 C5 H12 109.036
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability