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

using model chemistry: HF/3-21G

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/3-21G
 hartrees
Energy at 0K-208.832651
Energy at 298.15K-208.840370
HF Energy-208.832651
Nuclear repulsion energy159.720551
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/3-21G
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' 3284 2974 32.32      
2 A' 3277 2968 32.56      
3 A' 3236 2931 0.69      
4 A' 3210 2907 14.18      
5 A' 2581 2337 7.42      
6 A' 1678 1520 15.38      
7 A' 1671 1514 7.83      
8 A' 1589 1439 5.86      
9 A' 1505 1363 3.09      
10 A' 1312 1188 5.69      
11 A' 1267 1147 13.01      
12 A' 978 886 0.51      
13 A' 816 739 1.73      
14 A' 635 575 2.61      
15 A' 391 354 0.23      
16 A' 326 296 1.43      
17 A' 258 233 1.12      
18 A" 3279 2969 14.66      
19 A" 3271 2963 1.67      
20 A" 3207 2904 18.29      
21 A" 1659 1503 4.68      
22 A" 1657 1501 0.29      
23 A" 1570 1422 6.90      
24 A" 1450 1313 0.00      
25 A" 1219 1104 2.95      
26 A" 1056 957 2.59      
27 A" 1038 940 1.42      
28 A" 670 607 0.23      
29 A" 251 228 0.12      
30 A" 234 212 3.88      

Unscaled Zero Point Vibrational Energy (zpe) 24287.9 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 21995.2 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 HF/3-21G
ABC
0.26516 0.13354 0.09762

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.152 -2.190 0.000
C2 -0.102 -1.079 0.000
C3 -0.418 0.350 0.000
C4 0.152 1.014 1.273
C5 0.152 1.014 -1.273
H6 -1.498 0.448 0.000
H7 -0.108 2.066 1.279
H8 -0.251 0.553 2.166
H9 1.231 0.923 1.290
H10 -0.108 2.066 -1.279
H11 -0.251 0.553 -2.166
H12 1.231 0.923 -1.290

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.13992.60373.44863.44863.11174.45233.51873.53904.45233.51873.5390
C21.13991.46382.46362.46362.06883.39552.71622.72993.39552.71622.7299
C32.60371.46381.54511.54511.08412.16252.18182.17092.16252.18182.1709
C43.44862.46361.54512.54642.15951.08351.08261.08302.77243.49322.7829
C53.44862.46361.54512.54642.15952.77243.49322.78291.08351.08261.0830
H63.11172.06881.08412.15952.15952.48702.50133.05562.48702.50133.0556
H74.45233.39552.16251.08352.77242.48701.75981.76052.55743.76503.1144
H83.51872.71622.18181.08263.49322.50131.75981.76063.76504.33183.7787
H93.53902.72992.17091.08302.78293.05561.76051.76063.11443.77872.5807
H104.45233.39552.16252.77241.08352.48702.55743.76503.11441.75981.7605
H113.51872.71622.18183.49321.08262.50133.76504.33183.77871.75981.7606
H123.53902.72992.17092.78291.08303.05563.11443.77872.58071.76051.7606

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 179.582 C2 C3 C4 109.893
C2 C3 C5 109.893 C2 C3 H6 107.642
C3 C4 H7 109.460 C3 C4 H8 111.037
C3 C4 H9 110.142 C3 C5 H10 109.460
C3 C5 H11 111.037 C3 C5 H12 110.142
C4 C3 C5 110.982 C4 C3 H6 109.180
C5 C3 H6 109.180 H7 C4 H8 108.673
H7 C4 H9 108.703 H8 C4 H9 108.778
H10 C5 H11 108.673 H10 C5 H12 108.703
H11 C5 H12 108.778
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.515      
2 C 0.380      
3 C -0.384      
4 C -0.543      
5 C -0.543      
6 H 0.279      
7 H 0.215      
8 H 0.226      
9 H 0.222      
10 H 0.215      
11 H 0.226      
12 H 0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.696 3.966 0.000 4.027
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.700 0.839 0.000
y 0.839 -40.280 0.000
z 0.000 0.000 -30.442
Traceless
 xyz
x 4.661 0.839 0.000
y 0.839 -9.709 0.000
z 0.000 0.000 5.048
Polar
3z2-r210.096
x2-y29.580
xy0.839
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.888 -0.337 0.000
y -0.337 7.248 0.000
z 0.000 0.000 5.419


<r2> (average value of r2) Å2
<r2> 128.241
(<r2>)1/2 11.324