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/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-211.302974
Energy at 298.15K-211.310239
HF Energy-210.987534
Nuclear repulsion energy159.497385
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/aug-cc-pVTZ
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' 3141 3014 18.26      
2 A' 3136 3008 31.96      
3 A' 3064 2940 15.83      
4 A' 3058 2934 2.56      
5 A' 2285 2193 4.96      
6 A' 1527 1465 9.74      
7 A' 1518 1457 8.42      
8 A' 1437 1378 2.69      
9 A' 1363 1308 6.38      
10 A' 1206 1157 2.57      
11 A' 1138 1092 3.80      
12 A' 939 901 0.57      
13 A' 777 745 0.56      
14 A' 550 527 1.02      
15 A' 355 341 0.25      
16 A' 283 272 1.06      
17 A' 219 210 2.29      
18 A" 3140 3013 12.49      
19 A" 3131 3004 0.01      
20 A" 3061 2937 14.79      
21 A" 1506 1445 3.58      
22 A" 1504 1443 0.37      
23 A" 1415 1358 3.69      
24 A" 1335 1281 0.31      
25 A" 1139 1093 2.58      
26 A" 984 944 0.11      
27 A" 947 908 1.60      
28 A" 570 547 0.00      
29 A" 220 211 0.02      
30 A" 187 180 4.92      

Unscaled Zero Point Vibrational Energy (zpe) 22567.4 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 21651.1 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/aug-cc-pVTZ
ABC
0.26683 0.13274 0.09711

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.405 -2.173 0.000
C2 0.026 -1.080 0.000
C3 -0.438 0.308 0.000
C4 0.026 1.026 1.270
C5 0.026 1.026 -1.270
H6 -1.529 0.269 0.000
H7 -0.365 2.042 1.278
H8 -0.322 0.514 2.164
H9 1.113 1.075 1.305
H10 -0.365 2.042 -1.278
H11 -0.322 0.514 -2.164
H12 1.113 1.075 -1.305

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.15692.62023.46293.46293.11454.47103.52533.57164.47103.52533.5716
C21.15691.46342.45942.45942.05843.39572.70962.74363.39572.70962.7436
C32.62021.46341.53141.53141.09142.15532.17652.16732.15532.17652.1673
C43.46292.45941.53142.54042.14611.08831.08711.08822.77093.48922.7952
C53.46292.45941.53142.54042.14612.77093.48922.79521.08831.08711.0882
H63.11452.05841.09142.14612.14612.47662.48983.05482.47662.48983.0548
H74.47103.39572.15531.08832.77092.47661.76671.76562.55613.76593.1284
H83.52532.70962.17651.08713.48922.48981.76671.76383.76594.32733.7951
H93.57162.74362.16731.08822.79523.05481.76561.76383.12843.79512.6094
H104.47103.39572.15532.77091.08832.47662.55613.76593.12841.76671.7656
H113.52532.70962.17653.48921.08712.48983.76594.32733.79511.76671.7638
H123.57162.74362.16732.79521.08823.05483.12843.79512.60941.76561.7638

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 179.426 C2 C3 C4 110.396
C2 C3 C5 110.396 C2 C3 H6 106.448
C3 C4 H7 109.561 C3 C4 H8 111.314
C3 C4 H9 110.510 C3 C5 H10 109.561
C3 C5 H11 111.314 C3 C5 H12 110.510
C4 C3 C5 112.082 C4 C3 H6 108.663
C5 C3 H6 108.663 H7 C4 H8 108.604
H7 C4 H9 108.432 H8 C4 H9 108.348
H10 C5 H11 108.604 H10 C5 H12 108.432
H11 C5 H12 108.348
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability