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

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-210.175225
Energy at 298.15K-210.182686
HF Energy-210.175225
Nuclear repulsion energy159.002100
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 mPW1PW91/3-21G*
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' 3170 3010 17.64      
2 A' 3164 3005 23.05      
3 A' 3091 2935 2.66      
4 A' 3083 2928 10.45      
5 A' 2368 2248 4.52      
6 A' 1574 1495 17.60      
7 A' 1567 1488 11.89      
8 A' 1473 1399 8.09      
9 A' 1394 1324 2.12      
10 A' 1225 1164 6.23      
11 A' 1176 1116 12.00      
12 A' 946 899 1.35      
13 A' 790 750 0.47      
14 A' 598 568 1.89      
15 A' 366 347 0.16      
16 A' 304 288 0.85      
17 A' 241 229 0.85      
18 A" 3167 3008 10.26      
19 A" 3160 3001 1.05      
20 A" 3081 2926 12.62      
21 A" 1553 1475 3.96      
22 A" 1552 1474 2.60      
23 A" 1454 1381 12.71      
24 A" 1344 1277 0.05      
25 A" 1146 1088 3.84      
26 A" 1000 950 0.16      
27 A" 977 928 5.12      
28 A" 627 595 0.40      
29 A" 237 225 0.05      
30 A" 217 206 2.73      

Unscaled Zero Point Vibrational Energy (zpe) 23021.5 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 21861.2 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 mPW1PW91/3-21G*
ABC
0.26531 0.13224 0.09709

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.153 -2.207 0.000
C2 -0.108 -1.073 0.000
C3 -0.418 0.353 0.000
C4 0.153 1.017 1.271
C5 0.153 1.017 -1.271
H6 -1.511 0.459 0.000
H7 -0.104 2.081 1.270
H8 -0.256 0.555 2.173
H9 1.242 0.918 1.285
H10 -0.104 2.081 -1.270
H11 -0.256 0.555 -2.173
H12 1.242 0.918 -1.285

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.16322.62253.46523.46523.14244.47903.53813.54974.47903.53813.5497
C21.16321.45942.46032.46032.07723.40022.71972.72773.40022.71972.7277
C32.62251.45941.54351.54351.09772.16742.18872.17442.16742.18872.1744
C43.46522.46031.54352.54122.16681.09421.09331.09382.76633.49862.7797
C53.46522.46031.54352.54122.16682.76633.49862.77971.09421.09331.0938
H63.14242.07721.09772.16682.16682.49462.51153.07282.49462.51153.0728
H74.47903.40022.16741.09422.76632.49461.77931.77912.54013.76913.1133
H83.53812.71972.18871.09333.49862.51151.77931.77903.76914.34643.7860
H93.54972.72772.17441.09382.77973.07281.77911.77903.11333.78602.5697
H104.47903.40022.16742.76631.09422.49462.54013.76913.11331.77931.7791
H113.53812.71972.18873.49861.09332.51153.76914.34643.78601.77931.7790
H123.54972.72772.17442.77971.09383.07283.11333.78602.56971.77911.7790

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 179.267 C2 C3 C4 109.998
C2 C3 C5 109.998 C2 C3 H6 107.807
C3 C4 H7 109.326 C3 C4 H8 111.058
C3 C4 H9 109.897 C3 C5 H10 109.326
C3 C5 H11 111.058 C3 C5 H12 109.897
C4 C3 C5 110.813 C4 C3 H6 109.081
C5 C3 H6 109.081 H7 C4 H8 108.858
H7 C4 H9 108.799 H8 C4 H9 108.863
H10 C5 H11 108.858 H10 C5 H12 108.799
H11 C5 H12 108.863
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.502      
2 C 0.404      
3 C -0.405      
4 C -0.585      
5 C -0.585      
6 H 0.281      
7 H 0.226      
8 H 0.236      
9 H 0.234      
10 H 0.226      
11 H 0.236      
12 H 0.234      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.633 3.751 0.000 3.804
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.049 0.744 0.000
y 0.744 -38.849 0.000
z 0.000 0.000 -29.728
Traceless
 xyz
x 4.240 0.744 0.000
y 0.744 -8.961 0.000
z 0.000 0.000 4.721
Polar
3z2-r29.441
x2-y28.800
xy0.744
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.998 -0.347 0.000
y -0.347 7.552 0.000
z 0.000 0.000 5.594


<r2> (average value of r2) Å2
<r2> 128.301
(<r2>)1/2 11.327