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

using model chemistry: B3PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/STO-3G
 hartrees
Energy at 0K-208.714212
Energy at 298.15K-208.721149
HF Energy-208.714212
Nuclear repulsion energy156.219295
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 B3PW91/STO-3G
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' 3518 3114 0.10      
2 A' 3515 3111 0.10      
3 A' 3369 2982 0.17      
4 A' 3340 2956 0.36      
5 A' 2405 2128 9.67      
6 A' 1685 1491 5.03      
7 A' 1679 1486 7.70      
8 A' 1577 1395 0.80      
9 A' 1452 1285 11.30      
10 A' 1289 1140 4.78      
11 A' 1210 1071 8.54      
12 A' 1000 885 1.18      
13 A' 811 718 0.63      
14 A' 560 495 1.84      
15 A' 360 319 0.15      
16 A' 276 244 0.75      
17 A' 213 188 0.82      
18 A" 3517 3112 0.00      
19 A" 3513 3109 0.05      
20 A" 3340 2956 0.35      
21 A" 1676 1483 2.30      
22 A" 1673 1480 0.41      
23 A" 1559 1379 0.65      
24 A" 1443 1277 0.91      
25 A" 1231 1090 1.82      
26 A" 1058 936 0.59      
27 A" 1021 904 2.95      
28 A" 572 506 0.00      
29 A" 217 192 0.04      
30 A" 190 168 2.47      

Unscaled Zero Point Vibrational Energy (zpe) 24633.2 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 21800.4 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 B3PW91/STO-3G
ABC
0.25855 0.12613 0.09281

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.151 -2.267 0.000
C2 -0.102 -1.100 0.000
C3 -0.409 0.371 0.000
C4 0.151 1.042 1.291
C5 0.151 1.042 -1.291
H6 -1.514 0.472 0.000
H7 -0.116 2.109 1.294
H8 -0.273 0.569 2.188
H9 1.246 0.953 1.328
H10 -0.116 2.109 -1.294
H11 -0.273 0.569 -2.188
H12 1.246 0.953 -1.328

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.19452.69743.55253.55253.20564.57123.60703.65124.57123.60703.6512
C21.19451.50292.51392.51392.11293.45972.75692.79163.45972.75692.7916
C32.69741.50291.55921.55921.10882.18612.20102.20042.18612.20102.2004
C43.55252.51391.55922.58232.18241.09951.09921.09912.80923.53672.8402
C53.55252.51391.55922.58232.18242.80923.53672.84021.09951.09921.0991
H63.20562.11291.10882.18242.18242.51102.51703.09992.51102.51703.0999
H74.57123.45972.18611.09952.80922.51101.78751.78692.58803.81053.1729
H83.60702.75692.20101.09923.53672.51701.78751.78723.81054.37583.8493
H93.65122.79162.20041.09912.84023.09991.78691.78723.17293.84932.6562
H104.57123.45972.18612.80921.09952.51102.58803.81053.17291.78751.7869
H113.60702.75692.20103.53671.09922.51703.81054.37583.84931.78751.7872
H123.65122.79162.20042.84021.09913.09993.17293.84932.65621.78691.7872

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 179.590 C2 C3 C4 110.345
C2 C3 C5 110.345 C2 C3 H6 107.031
C3 C4 H7 109.404 C3 C4 H8 110.579
C3 C4 H9 110.535 C3 C5 H10 109.404
C3 C5 H11 110.579 C3 C5 H12 110.535
C4 C3 C5 111.798 C4 C3 H6 108.586
C5 C3 H6 108.586 H7 C4 H8 108.778
H7 C4 H9 108.727 H8 C4 H9 108.774
H10 C5 H11 108.778 H10 C5 H12 108.727
H11 C5 H12 108.774
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.193      
2 C 0.057      
3 C -0.052      
4 C -0.225      
5 C -0.225      
6 H 0.104      
7 H 0.087      
8 H 0.090      
9 H 0.089      
10 H 0.087      
11 H 0.090      
12 H 0.089      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.540 3.169 0.000 3.214
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.090 0.627 0.000
y 0.627 -35.811 0.000
z 0.000 0.000 -28.035
Traceless
 xyz
x 3.834 0.627 0.000
y 0.627 -7.749 0.000
z 0.000 0.000 3.915
Polar
3z2-r27.831
x2-y27.722
xy0.627
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.758 -0.298 0.000
y -0.298 4.780 0.000
z 0.000 0.000 3.028


<r2> (average value of r2) Å2
<r2> 131.352
(<r2>)1/2 11.461