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

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-209.947381
Energy at 298.15K-209.954705
HF Energy-209.947381
Nuclear repulsion energy157.712829
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/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' 3079 3051 18.72      
2 A' 3073 3045 24.99      
3 A' 2994 2967 13.34      
4 A' 2988 2960 1.84      
5 A' 2251 2230 3.12      
6 A' 1526 1512 15.10      
7 A' 1518 1504 11.32      
8 A' 1418 1405 6.22      
9 A' 1339 1327 2.08      
10 A' 1180 1169 5.57      
11 A' 1130 1120 10.19      
12 A' 912 904 1.93      
13 A' 764 757 0.33      
14 A' 576 571 1.64      
15 A' 353 349 0.14      
16 A' 292 289 0.65      
17 A' 233 230 0.72      
18 A" 3077 3049 11.45      
19 A" 3069 3041 1.09      
20 A" 2991 2964 12.87      
21 A" 1504 1491 0.69      
22 A" 1504 1490 5.26      
23 A" 1400 1387 10.36      
24 A" 1294 1282 0.25      
25 A" 1102 1092 4.21      
26 A" 966 957 0.27      
27 A" 940 932 4.31      
28 A" 603 598 0.64      
29 A" 230 228 0.04      
30 A" 208 206 2.25      

Unscaled Zero Point Vibrational Energy (zpe) 22255.5 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 22053.0 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/3-21G
ABC
0.26163 0.13003 0.09555

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.154 -2.227 0.000
C2 -0.111 -1.079 0.000
C3 -0.420 0.355 0.000
C4 0.154 1.026 1.280
C5 0.154 1.026 -1.280
H6 -1.523 0.465 0.000
H7 -0.105 2.098 1.276
H8 -0.259 0.560 2.189
H9 1.253 0.924 1.293
H10 -0.105 2.098 -1.276
H11 -0.259 0.560 -2.189
H12 1.253 0.924 -1.293

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.17822.64573.49543.49543.17184.51723.56803.57934.51723.56803.5793
C21.17821.46752.47742.47742.09243.42402.73882.74703.42402.73882.7470
C32.64571.46751.55461.55461.10812.18282.20472.18982.18282.20472.1898
C43.49542.47741.55462.55912.18291.10371.10261.10322.78353.52432.7992
C53.49542.47741.55462.55912.18292.78353.52432.79921.10371.10261.1032
H63.17182.09241.10812.18292.18292.51102.52973.09652.51102.52973.0965
H74.51723.42402.18281.10372.78352.51101.79591.79532.55163.79443.1340
H83.56802.73882.20471.10263.52432.52971.79591.79503.79444.37863.8140
H93.57932.74702.18981.10322.79923.09651.79531.79503.13403.81402.5863
H104.51723.42402.18282.78351.10372.51102.55163.79443.13401.79591.7953
H113.56802.73882.20473.52431.10262.52973.79444.37863.81401.79591.7950
H123.57932.74702.18982.79921.10323.09653.13403.81402.58631.79531.7950

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 179.166 C2 C3 C4 110.091
C2 C3 C5 110.091 C2 C3 H6 107.845
C3 C4 H7 109.224 C3 C4 H8 111.001
C3 C4 H9 109.794 C3 C5 H10 109.224
C3 C5 H11 111.001 C3 C5 H12 109.794
C4 C3 C5 110.791 C4 C3 H6 108.978
C5 C3 H6 108.978 H7 C4 H8 108.980
H7 C4 H9 108.874 H8 C4 H9 108.932
H10 C5 H11 108.980 H10 C5 H12 108.874
H11 C5 H12 108.932
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.485      
2 C 0.398      
3 C -0.382      
4 C -0.557      
5 C -0.557      
6 H 0.263      
7 H 0.214      
8 H 0.224      
9 H 0.222      
10 H 0.214      
11 H 0.224      
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
  -0.602 3.620 0.000 3.670
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.132 0.700 0.000
y 0.700 -38.578 0.000
z 0.000 0.000 -29.794
Traceless
 xyz
x 4.054 0.700 0.000
y 0.700 -8.615 0.000
z 0.000 0.000 4.561
Polar
3z2-r29.122
x2-y28.446
xy0.700
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.120 -0.356 0.000
y -0.356 7.864 0.000
z 0.000 0.000 5.789


<r2> (average value of r2) Å2
<r2> 129.989
(<r2>)1/2 11.401