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

using model chemistry: PBEPBE/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 PBEPBE/6-31G*
 hartrees
Energy at 0K-211.095589
Energy at 298.15K-211.102702
HF Energy-211.095589
Nuclear repulsion energy157.897384
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 PBEPBE/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' 3086 3042 18.55      
2 A' 3079 3035 31.52      
3 A' 2999 2956 16.43      
4 A' 2971 2929 5.58      
5 A' 2276 2243 7.25      
6 A' 1492 1471 9.85      
7 A' 1482 1460 8.89      
8 A' 1397 1377 2.37      
9 A' 1317 1298 5.89      
10 A' 1168 1151 3.22      
11 A' 1101 1085 5.06      
12 A' 918 905 1.78      
13 A' 763 752 0.38      
14 A' 539 532 1.28      
15 A' 343 338 0.14      
16 A' 278 274 0.68      
17 A' 214 211 1.82      
18 A" 3085 3041 12.27      
19 A" 3075 3031 0.64      
20 A" 2997 2954 15.46      
21 A" 1470 1449 3.02      
22 A" 1468 1447 1.25      
23 A" 1375 1355 3.80      
24 A" 1288 1270 0.85      
25 A" 1107 1091 2.45      
26 A" 954 940 0.18      
27 A" 918 905 2.60      
28 A" 556 548 0.10      
29 A" 224 221 0.01      
30 A" 180 178 3.87      

Unscaled Zero Point Vibrational Energy (zpe) 22058.4 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 21742.9 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 PBEPBE/6-31G*
ABC
0.26208 0.13020 0.09529

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.408 -2.197 0.000
C2 0.026 -1.086 0.000
C3 -0.439 0.310 0.000
C4 0.026 1.035 1.281
C5 0.026 1.035 -1.281
H6 -1.546 0.274 0.000
H7 -0.372 2.063 1.289
H8 -0.326 0.517 2.187
H9 1.127 1.089 1.319
H10 -0.372 2.063 -1.289
H11 -0.326 0.517 -2.187
H12 1.127 1.089 -1.319

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.17392.64583.49713.49713.15034.51853.56133.61314.51853.56133.6131
C21.17391.47192.47822.47822.07963.42652.73442.77233.42652.73442.7723
C32.64581.47191.54371.54371.10782.17712.19972.19092.17712.19972.1909
C43.49712.47821.54372.56192.16621.10291.10171.10262.79623.52412.8240
C53.49712.47821.54372.56192.16622.79623.52412.82401.10291.10171.1026
H63.15032.07961.10782.16622.16622.49802.51623.09042.49802.51623.0904
H74.51853.42652.17711.10292.79622.49801.78931.78812.57733.80453.1619
H83.56132.73442.19971.10173.52412.51621.78931.78643.80454.37403.8382
H93.61312.77232.19091.10262.82403.09041.78811.78643.16193.83822.6385
H104.51853.42652.17712.79621.10292.49802.57733.80453.16191.78931.7881
H113.56132.73442.19973.52411.10172.51623.80454.37403.83821.78931.7864
H123.61312.77232.19092.82401.10263.09043.16193.83822.63851.78811.7864

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 179.464 C2 C3 C4 110.504
C2 C3 C5 110.504 C2 C3 H6 106.590
C3 C4 H7 109.562 C3 C4 H8 111.414
C3 C4 H9 110.662 C3 C5 H10 109.562
C3 C5 H11 111.414 C3 C5 H12 110.662
C4 C3 C5 112.150 C4 C3 H6 108.446
C5 C3 H6 108.446 H7 C4 H8 108.514
H7 C4 H9 108.333 H8 C4 H9 108.275
H10 C5 H11 108.514 H10 C5 H12 108.333
H11 C5 H12 108.275
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.468      
2 C 0.363      
3 C -0.206      
4 C -0.479      
5 C -0.479      
6 H 0.199      
7 H 0.171      
8 H 0.183      
9 H 0.180      
10 H 0.171      
11 H 0.183      
12 H 0.180      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.097 3.732 0.000 3.890
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.193 1.691 0.000
y 1.691 -38.563 0.000
z 0.000 0.000 -29.636
Traceless
 xyz
x 3.907 1.691 0.000
y 1.691 -8.648 0.000
z 0.000 0.000 4.741
Polar
3z2-r29.482
x2-y28.370
xy1.691
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.646 -0.691 0.000
y -0.691 8.391 0.000
z 0.000 0.000 6.265


<r2> (average value of r2) Å2
<r2> 130.083
(<r2>)1/2 11.405