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: B2PLYP=FULL/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULL/6-31G**
 hartrees
Energy at 0K-211.166671
Energy at 298.15K-211.173959
HF Energy-210.919823
Nuclear repulsion energy158.756132
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 B2PLYP=FULL/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' 3184 3184 21.20      
2 A' 3178 3178 35.97      
3 A' 3094 3094 15.90      
4 A' 3088 3088 4.82      
5 A' 2300 2300 1.79      
6 A' 1548 1548 8.20      
7 A' 1539 1539 6.56      
8 A' 1458 1458 1.97      
9 A' 1376 1376 6.98      
10 A' 1218 1218 2.49      
11 A' 1147 1147 4.52      
12 A' 947 947 0.57      
13 A' 781 781 0.68      
14 A' 553 553 1.14      
15 A' 357 357 0.21      
16 A' 292 292 0.81      
17 A' 223 223 2.33      
18 A" 3183 3183 13.35      
19 A" 3174 3174 0.38      
20 A" 3091 3091 15.59      
21 A" 1528 1528 2.77      
22 A" 1526 1526 0.50      
23 A" 1437 1437 2.25      
24 A" 1353 1353 0.66      
25 A" 1152 1152 2.06      
26 A" 991 991 0.20      
27 A" 956 956 1.85      
28 A" 569 569 0.04      
29 A" 236 236 0.01      
30 A" 187 187 4.55      

Unscaled Zero Point Vibrational Energy (zpe) 22831.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 22831.8 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 B2PLYP=FULL/6-31G**
ABC
0.26519 0.13120 0.09612

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.405 -2.189 0.000
C2 0.027 -1.084 0.000
C3 -0.439 0.312 0.000
C4 0.027 1.032 1.274
C5 0.027 1.032 -1.274
H6 -1.534 0.274 0.000
H7 -0.364 2.050 1.283
H8 -0.324 0.519 2.170
H9 1.116 1.080 1.310
H10 -0.364 2.050 -1.283
H11 -0.324 0.519 -2.170
H12 1.116 1.080 -1.310

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.16792.63923.48373.48373.13424.49513.54503.59234.49513.54503.5923
C21.16791.47142.46952.46952.06823.40902.71982.75423.40902.71982.7542
C32.63921.47141.53581.53581.09482.16202.18242.17392.16202.18242.1739
C43.48372.46951.53582.54842.15211.09091.08981.09082.78033.49942.8051
C53.48372.46951.53582.54842.15212.78033.49942.80511.09091.08981.0908
H63.13422.06821.09482.15212.15212.48412.49603.06362.48412.49603.0636
H74.49513.40902.16201.09092.78032.48411.77021.76942.56633.77743.1395
H83.54502.71982.18241.08983.49942.49601.77021.76803.77744.33913.8076
H93.59232.75422.17391.09082.80513.06361.76941.76803.13953.80762.6209
H104.49513.40902.16202.78031.09092.48412.56633.77743.13951.77021.7694
H113.54502.71982.18243.49941.08982.49603.77744.33913.80761.77021.7680
H123.59232.75422.17392.80511.09083.06363.13953.80762.62091.76941.7680

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 179.534 C2 C3 C4 110.391
C2 C3 C5 110.391 C2 C3 H6 106.479
C3 C4 H7 109.625 C3 C4 H8 111.309
C3 C4 H9 110.567 C3 C5 H10 109.625
C3 C5 H11 111.309 C3 C5 H12 110.567
C4 C3 C5 112.125 C4 C3 H6 108.631
C5 C3 H6 108.631 H7 C4 H8 108.529
H7 C4 H9 108.391 H8 C4 H9 108.344
H10 C5 H11 108.529 H10 C5 H12 108.391
H11 C5 H12 108.344
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability