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

using model chemistry: HF/CEP-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 HF/CEP-31G*
 hartrees
Energy at 0K-35.701802
Energy at 298.15K-35.709302
HF Energy-35.701802
Nuclear repulsion energy86.331188
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/CEP-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' 3317 2979 93.23      
2 A' 3307 2970 81.84      
3 A' 3277 2943 2.65      
4 A' 3232 2902 32.56      
5 A' 2593 2329 24.01      
6 A' 1637 1470 8.47      
7 A' 1628 1462 5.89      
8 A' 1562 1402 1.78      
9 A' 1473 1323 13.09      
10 A' 1293 1161 3.12      
11 A' 1220 1095 6.08      
12 A' 992 891 0.71      
13 A' 812 729 4.20      
14 A' 589 529 1.56      
15 A' 371 333 0.38      
16 A' 308 276 1.46      
17 A' 239 215 2.40      
18 A" 3310 2973 26.02      
19 A" 3301 2965 6.31      
20 A" 3228 2898 39.24      
21 A" 1618 1453 2.96      
22 A" 1616 1451 0.05      
23 A" 1544 1386 0.28      
24 A" 1450 1302 0.62      
25 A" 1228 1103 1.77      
26 A" 1046 939 0.42      
27 A" 1010 907 1.07      
28 A" 615 553 0.21      
29 A" 243 219 0.00      
30 A" 207 186 5.65      

Unscaled Zero Point Vibrational Energy (zpe) 24132.4 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 21670.9 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 HF/CEP-31G*
ABC
0.26212 0.13070 0.09559

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.407 -2.186 0.000
C2 0.029 -1.097 0.000
C3 -0.450 0.320 0.000
C4 0.029 1.033 1.282
C5 0.029 1.033 -1.282
H6 -1.537 0.271 0.000
H7 -0.356 2.054 1.293
H8 -0.326 0.520 2.175
H9 1.117 1.074 1.318
H10 -0.356 2.054 -1.293
H11 -0.326 0.520 -2.175
H12 1.117 1.074 -1.318

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.15232.64803.48563.48563.13294.49773.54823.58704.49773.54823.5870
C21.15231.49572.48672.48672.07933.42802.73362.76343.42802.73362.7634
C32.64801.49571.54331.54331.08822.16532.18762.18202.16532.18762.1820
C43.48562.48671.54332.56402.16241.09061.08941.09012.79653.51282.8186
C53.48562.48671.54332.56402.16242.79653.51282.81861.09061.08941.0901
H63.13292.07931.08822.16242.16242.49942.50163.07032.49942.50163.0703
H74.49773.42802.16531.09062.79652.49941.76961.76932.58623.79223.1536
H83.54822.73362.18761.08943.51282.50161.76961.76823.79224.34983.8195
H93.58702.76342.18201.09012.81863.07031.76931.76823.15363.81952.6351
H104.49773.42802.16532.79651.09062.49942.58623.79223.15361.76961.7693
H113.54822.73362.18763.51281.08942.50163.79224.34983.81951.76961.7682
H123.58702.76342.18202.81861.09013.07033.15363.81952.63511.76931.7682

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 179.477 C2 C3 C4 109.811
C2 C3 C5 109.811 C2 C3 H6 106.089
C3 C4 H7 109.390 C3 C4 H8 111.220
C3 C4 H9 110.735 C3 C5 H10 109.390
C3 C5 H11 111.220 C3 C5 H12 110.735
C4 C3 C5 112.338 C4 C3 H6 109.297
C5 C3 H6 109.297 H7 C4 H8 108.529
H7 C4 H9 108.455 H8 C4 H9 108.440
H10 C5 H11 108.529 H10 C5 H12 108.455
H11 C5 H12 108.440
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.334      
2 C -0.652      
3 C 0.137      
4 C -0.383      
5 C -0.383      
6 H 0.128      
7 H 0.137      
8 H 0.150      
9 H 0.122      
10 H 0.137      
11 H 0.150      
12 H 0.122      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.257 4.166 0.000 4.352
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.585 1.824 0.000
y 1.824 -39.974 0.000
z 0.000 0.000 -30.346
Traceless
 xyz
x 4.575 1.824 0.000
y 1.824 -9.508 0.000
z 0.000 0.000 4.933
Polar
3z2-r29.867
x2-y29.389
xy1.824
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.397 -0.556 0.000
y -0.556 7.667 0.000
z 0.000 0.000 5.976


<r2> (average value of r2) Å2
<r2> 106.421
(<r2>)1/2 10.316