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

using model chemistry: G3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G3
 hartrees
Energy at 0K-211.202877
Energy at 298.15K-211.195862
HF Energy-209.998000
Nuclear repulsion energy159.666512
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 HF/6-31G*
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' 3296 3106 40.55      
2 A' 3291 3101 55.77      
3 A' 3232 3045 4.48      
4 A' 3220 3034 20.52      
5 A' 2608 2457 14.34      
6 A' 1653 1558 8.10      
7 A' 1645 1549 5.39      
8 A' 1578 1486 2.24      
9 A' 1490 1404 9.32      
10 A' 1305 1229 3.09      
11 A' 1235 1164 6.18      
12 A' 994 937 0.43      
13 A' 817 770 3.24      
14 A' 601 566 1.73      
15 A' 379 357 0.46      
16 A' 312 294 1.86      
17 A' 242 228 2.80      
18 A" 3293 3103 21.21      
19 A" 3284 3094 0.81      
20 A" 3215 3029 23.78      
21 A" 1634 1539 2.81      
22 A" 1632 1537 0.05      
23 A" 1556 1466 1.45      
24 A" 1463 1379 0.34      
25 A" 1230 1159 1.53      
26 A" 1051 991 0.31      
27 A" 1023 964 1.29      
28 A" 628 591 0.03      
29 A" 244 230 0.01      
30 A" 209 197 6.48      

Unscaled Zero Point Vibrational Energy (zpe) 24179.5 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 22782.0 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 MP2=FULL/6-31G*
ABC
0.26676 0.13108 0.09637

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.416 -2.191 0.000
C2 0.025 -1.078 0.000
C3 -0.445 0.313 0.000
C4 0.025 1.030 1.268
C5 0.025 1.030 -1.268
H6 -1.541 0.278 0.000
H7 -0.363 2.052 1.278
H8 -0.325 0.517 2.167
H9 1.116 1.073 1.299
H10 -0.363 2.052 -1.278
H11 -0.325 0.517 -2.167
H12 1.116 1.073 -1.299

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.18012.64783.48393.48393.15094.49943.54623.58234.49943.54623.5823
C21.18011.46782.45982.45982.07163.40282.71262.73933.40282.71262.7393
C32.64781.46781.53091.53091.09692.15982.17942.16852.15982.17942.1685
C43.48392.45981.53092.53662.15091.09331.09221.09292.77083.49062.7898
C53.48392.45981.53092.53662.15092.77083.49062.78981.09331.09221.0929
H63.15092.07161.09692.15092.15092.48372.49583.06302.48372.49583.0630
H74.49943.40282.15981.09332.77082.48371.77461.77402.55553.77123.1280
H83.54622.71262.17941.09223.49062.49581.77461.77253.77124.33313.7942
H93.58232.73932.16851.09292.78983.06301.77401.77253.12803.79422.5973
H104.49943.40282.15982.77081.09332.48372.55553.77123.12801.77461.7740
H113.54622.71262.17943.49061.09222.49583.77124.33313.79421.77461.7725
H123.58232.73932.16852.78981.09293.06303.12803.79422.59731.77401.7725

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 179.286 C2 C3 C4 110.181
C2 C3 C5 110.181 C2 C3 H6 106.264
C3 C4 H7 109.616 C3 C4 H8 111.269
C3 C4 H9 110.832 C3 C5 H10 109.616
C3 C5 H11 111.269 C3 C5 H12 110.832
C4 C3 C5 112.355 C4 C3 H6 108.827
C5 C3 H6 108.827 H7 C4 H8 108.376
H7 C4 H9 108.352 H8 C4 H9 108.311
H10 C5 H11 108.376 H10 C5 H12 108.352
H11 C5 H12 108.311
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability