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: LSDA/aug-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 LSDA/aug-cc-pVDZ
 hartrees
Energy at 0K-210.202902
Energy at 298.15K-210.210003
HF Energy-210.202902
Nuclear repulsion energy159.459205
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 LSDA/aug-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' 3087 3052 7.73      
2 A' 3074 3040 14.99      
3 A' 2985 2951 12.36      
4 A' 2970 2937 1.17      
5 A' 2300 2274 13.85      
6 A' 1415 1399 12.68      
7 A' 1402 1386 13.23      
8 A' 1331 1316 7.56      
9 A' 1278 1264 4.95      
10 A' 1147 1134 1.89      
11 A' 1066 1054 4.09      
12 A' 932 921 3.47      
13 A' 782 773 0.45      
14 A' 536 530 1.32      
15 A' 344 340 0.17      
16 A' 274 271 0.71      
17 A' 208 206 2.08      
18 A" 3087 3052 6.48      
19 A" 3073 3038 0.05      
20 A" 2984 2951 8.90      
21 A" 1387 1371 5.35      
22 A" 1385 1370 0.26      
23 A" 1312 1297 13.66      
24 A" 1245 1231 0.01      
25 A" 1122 1109 1.55      
26 A" 939 929 0.74      
27 A" 885 875 2.95      
28 A" 557 550 0.00      
29 A" 213 211 0.02      
30 A" 176 174 4.31      

Unscaled Zero Point Vibrational Energy (zpe) 21747.9 cm-1
Scaled (by 0.9887) Zero Point Vibrational Energy (zpe) 21502.2 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 LSDA/aug-cc-pVDZ
ABC
0.26917 0.13308 0.09777

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.410 -2.172 0.000
C2 0.024 -1.070 0.000
C3 -0.437 0.307 0.000
C4 0.024 1.021 1.260
C5 0.024 1.021 -1.260
H6 -1.548 0.262 0.000
H7 -0.373 2.054 1.267
H8 -0.321 0.504 2.173
H9 1.129 1.075 1.288
H10 -0.373 2.054 -1.267
H11 -0.321 0.504 -2.173
H12 1.129 1.075 -1.288

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.16702.61903.45403.45403.12384.48003.52403.56624.48003.52403.5662
C21.16701.45212.44152.44152.06113.39432.70592.73543.39432.70592.7354
C32.61901.45211.52021.52021.11182.15902.18542.16902.15902.18542.1690
C43.45402.44151.52022.51962.15311.10621.10481.10652.75813.48892.7780
C53.45402.44151.52022.51962.15312.75813.48892.77801.10621.10481.1065
H63.12382.06111.11182.15312.15312.48912.50773.08042.48912.50773.0804
H74.48003.39432.15901.10622.75812.48911.79571.79282.53363.77323.1214
H83.52402.70592.18541.10483.48892.50771.79571.79183.77324.34663.7963
H93.56622.73542.16901.10652.77803.08041.79281.79183.12143.79632.5769
H104.48003.39432.15902.75811.10622.48912.53363.77323.12141.79571.7928
H113.52402.70592.18543.48891.10482.50773.77324.34663.79631.79571.7918
H123.56622.73542.16902.77801.10653.08043.12143.79632.57691.79281.7918

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 179.240 C2 C3 C4 110.437
C2 C3 C5 110.437 C2 C3 H6 106.253
C3 C4 H7 109.574 C3 C4 H8 111.748
C3 C4 H9 110.336 C3 C5 H10 109.574
C3 C5 H11 111.748 C3 C5 H12 110.336
C4 C3 C5 111.936 C4 C3 H6 108.794
C5 C3 H6 108.794 H7 C4 H8 108.612
H7 C4 H9 108.232 H8 C4 H9 108.251
H10 C5 H11 108.612 H10 C5 H12 108.232
H11 C5 H12 108.251
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.135      
2 C -0.279      
3 C 0.106      
4 C 0.814      
5 C 0.814      
6 H -0.300      
7 H -0.195      
8 H -0.187      
9 H -0.129      
10 H -0.195      
11 H -0.187      
12 H -0.129      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.222 4.007 0.000 4.189
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.077 1.805 0.000
y 1.805 -40.001 0.000
z 0.000 0.000 -30.454
Traceless
 xyz
x 4.151 1.805 0.000
y 1.805 -9.235 0.000
z 0.000 0.000 5.085
Polar
3z2-r210.170
x2-y28.924
xy1.805
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.203 -0.581 0.000
y -0.581 9.995 0.000
z 0.000 0.000 8.074


<r2> (average value of r2) Å2
<r2> 128.210
(<r2>)1/2 11.323