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

using model chemistry: HF/CEP-121G*

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-121G*
 hartrees
Energy at 0K-35.719102
Energy at 298.15K-35.726619
HF Energy-35.719102
Nuclear repulsion energy86.673625
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-121G*
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' 3281 2964 65.51      
2 A' 3273 2957 73.76      
3 A' 3231 2919 3.51      
4 A' 3197 2888 26.86      
5 A' 2546 2300 17.06      
6 A' 1639 1481 8.55      
7 A' 1631 1473 5.64      
8 A' 1562 1411 2.02      
9 A' 1474 1332 11.14      
10 A' 1292 1168 2.90      
11 A' 1221 1103 5.22      
12 A' 984 889 0.88      
13 A' 806 728 4.20      
14 A' 590 533 1.40      
15 A' 373 337 0.50      
16 A' 307 278 1.70      
17 A' 240 217 2.41      
18 A" 3276 2960 28.38      
19 A" 3266 2950 1.95      
20 A" 3192 2883 30.83      
21 A" 1620 1464 2.94      
22 A" 1618 1462 0.03      
23 A" 1542 1393 0.86      
24 A" 1452 1312 0.43      
25 A" 1223 1105 2.08      
26 A" 1043 942 0.28      
27 A" 1011 914 0.75      
28 A" 620 560 0.03      
29 A" 238 215 0.02      
30 A" 207 187 6.01      

Unscaled Zero Point Vibrational Energy (zpe) 23977.1 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 21660.9 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-121G*
ABC
0.26304 0.13198 0.09625

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.398 -2.174 0.000
C2 0.030 -1.097 0.000
C3 -0.443 0.316 0.000
C4 0.030 1.030 1.281
C5 0.030 1.030 -1.281
H6 -1.529 0.270 0.000
H7 -0.356 2.045 1.294
H8 -0.324 0.517 2.170
H9 1.114 1.075 1.321
H10 -0.356 2.045 -1.294
H11 -0.324 0.517 -2.170
H12 1.114 1.075 -1.321

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.13812.62813.46953.46953.11204.47673.53093.57934.47673.53093.5793
C21.13811.49012.48242.48242.07313.41962.72692.76343.41962.72692.7634
C32.62811.49011.54061.54061.08622.16112.18212.17852.16112.18212.1785
C43.46952.48241.54062.56172.15531.08641.08521.08592.79453.50612.8192
C53.46952.48241.54062.56172.15532.79453.50612.81921.08641.08521.0859
H63.11202.07311.08622.15532.15532.48952.49383.06192.48952.49383.0619
H74.47673.41962.16111.08642.79452.48951.76161.76182.58773.78573.1529
H83.53092.72692.18211.08523.50612.49381.76161.76033.78574.33903.8162
H93.57932.76342.17851.08592.81923.06191.76181.76033.15293.81622.6422
H104.47673.41962.16112.79451.08642.48952.58773.78573.15291.76161.7618
H113.53092.72692.18213.50611.08522.49383.78574.33903.81621.76161.7603
H123.57932.76342.17852.81921.08593.06193.15293.81622.64221.76181.7603

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 179.650 C2 C3 C4 109.976
C2 C3 C5 109.976 C2 C3 H6 106.098
C3 C4 H7 109.491 C3 C4 H8 111.221
C3 C4 H9 110.897 C3 C5 H10 109.491
C3 C5 H11 111.221 C3 C5 H12 110.897
C4 C3 C5 112.488 C4 C3 H6 109.046
C5 C3 H6 109.046 H7 C4 H8 108.421
H7 C4 H9 108.388 H8 C4 H9 108.341
H10 C5 H11 108.421 H10 C5 H12 108.388
H11 C5 H12 108.341
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.085      
2 C -0.144      
3 C 0.037      
4 C -0.551      
5 C -0.551      
6 H 0.196      
7 H 0.183      
8 H 0.192      
9 H 0.175      
10 H 0.183      
11 H 0.192      
12 H 0.175      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.251 4.136 0.000 4.321
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.743 1.791 0.000
y 1.791 -40.083 0.000
z 0.000 0.000 -30.354
Traceless
 xyz
x 4.475 1.791 0.000
y 1.791 -9.534 0.000
z 0.000 0.000 5.059
Polar
3z2-r210.118
x2-y29.340
xy1.791
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.839 -0.572 0.000
y -0.572 8.060 0.000
z 0.000 0.000 6.325


<r2> (average value of r2) Å2
<r2> 105.912
(<r2>)1/2 10.291