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: MP4/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-210.800703
Energy at 298.15K-210.807922
HF Energy-210.007213
Nuclear repulsion energy157.348253
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/cc-pVDZ
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' 3156 3051        
2 A' 3149 3045        
3 A' 3062 2961        
4 A' 3056 2955        
5 A' 2167 2096        
6 A' 1500 1450        
7 A' 1490 1441        
8 A' 1414 1368        
9 A' 1346 1301        
10 A' 1193 1154        
11 A' 1120 1083        
12 A' 941 910        
13 A' 772 747        
14 A' 530 513        
15 A' 350 338        
16 A' 290 281        
17 A' 216 209        
18 A" 3154 3050        
19 A" 3146 3042        
20 A" 3054 2953        
21 A" 1480 1431        
22 A" 1478 1429        
23 A" 1395 1349        
24 A" 1329 1285        
25 A" 1147 1109        
26 A" 977 944        
27 A" 930 899        
28 A" 545 527        
29 A" 234 226        
30 A" 182 176        

Unscaled Zero Point Vibrational Energy (zpe) 22401.9 cm-1
Scaled (by 0.9669) Zero Point Vibrational Energy (zpe) 21660.4 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 MP4/cc-pVDZ
ABC
0.26225 0.12873 0.09469

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.420 -2.209 0.000
C2 0.025 -1.091 0.000
C3 -0.448 0.318 0.000
C4 0.025 1.039 1.279
C5 0.025 1.039 -1.279
H6 -1.556 0.279 0.000
H7 -0.366 2.073 1.288
H8 -0.332 0.519 2.186
H9 1.129 1.081 1.312
H10 -0.366 2.073 -1.288
H11 -0.332 0.519 -2.186
H12 1.129 1.081 -1.312

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.18602.67253.51313.51313.17754.54043.57593.61194.54043.57593.6119
C21.18601.48662.48432.48432.09193.43852.73812.76703.43852.73812.7670
C32.67251.48661.54221.54221.10852.17832.19792.18872.17832.19792.1887
C43.51312.48431.54222.55732.17071.10561.10461.10582.79443.52122.8163
C53.51312.48431.54222.55732.17072.79443.52122.81631.10561.10461.1058
H63.17752.09191.10852.17072.17072.50892.51663.09432.50892.51663.0943
H74.54043.43852.17831.10562.79442.50891.79511.79482.57553.80533.1588
H83.57592.73812.19791.10463.52122.51661.79511.79293.80534.37123.8316
H93.61192.76702.18871.10582.81633.09431.79481.79293.15883.83162.6233
H104.54043.43852.17832.79441.10562.50892.57553.80533.15881.79511.7948
H113.57592.73812.19793.52121.10462.51663.80534.37123.83161.79511.7929
H123.61192.76702.18872.81631.10583.09433.15883.83162.62331.79481.7929

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 179.084 C2 C3 C4 110.209
C2 C3 C5 110.209 C2 C3 H6 106.523
C3 C4 H7 109.611 C3 C4 H8 111.210
C3 C4 H9 110.410 C3 C5 H10 109.611
C3 C5 H11 111.210 C3 C5 H12 110.410
C4 C3 C5 112.019 C4 C3 H6 108.854
C5 C3 H6 108.854 H7 C4 H8 108.619
H7 C4 H9 108.512 H8 C4 H9 108.414
H10 C5 H11 108.619 H10 C5 H12 108.512
H11 C5 H12 108.414
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability