return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: wB97X-D/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/6-31+G**
 hartrees
Energy at 0K-211.325919
Energy at 298.15K-211.333119
HF Energy-211.325919
Nuclear repulsion energy158.895219
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 wB97X-D/6-31+G**
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 3019 20.03      
2 A' 3163 3012 37.68      
3 A' 3087 2939 5.14      
4 A' 3076 2929 17.21      
5 A' 2388 2274 12.96      
6 A' 1518 1445 14.49      
7 A' 1511 1439 9.94      
8 A' 1437 1368 5.84      
9 A' 1355 1291 6.71      
10 A' 1202 1145 3.17      
11 A' 1132 1078 5.75      
12 A' 943 898 0.57      
13 A' 779 742 0.78      
14 A' 558 531 1.25      
15 A' 362 345 0.22      
16 A' 278 265 1.31      
17 A' 207 197 1.82      
18 A" 3169 3018 13.42      
19 A" 3160 3009 0.03      
20 A" 3074 2928 20.48      
21 A" 1498 1426 5.66      
22 A" 1494 1423 0.00      
23 A" 1416 1348 6.17      
24 A" 1327 1264 0.16      
25 A" 1144 1089 2.64      
26 A" 980 933 0.38      
27 A" 947 902 2.23      
28 A" 577 550 0.10      
29 A" 203 193 0.34      
30 A" 184 175 4.46      

Unscaled Zero Point Vibrational Energy (zpe) 22668.8 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 21587.5 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 wB97X-D/6-31+G**
ABC
0.26494 0.13170 0.09637

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.385 -2.186 0.000
C2 0.031 -1.084 0.000
C3 -0.435 0.312 0.000
C4 0.031 1.030 1.277
C5 0.031 1.030 -1.277
H6 -1.530 0.268 0.000
H7 -0.363 2.050 1.285
H8 -0.319 0.517 2.175
H9 1.123 1.083 1.313
H10 -0.363 2.050 -1.285
H11 -0.319 0.517 -2.175
H12 1.123 1.083 -1.313

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.15782.62953.47863.47863.11294.48963.54013.59974.48963.54013.5997
C21.15781.47182.46962.46962.06533.40982.72312.75893.40982.72312.7589
C32.62951.47181.53711.53711.09652.16232.18772.17862.16232.18772.1786
C43.47862.46961.53712.55342.15651.09351.09251.09372.78503.50722.8114
C53.47862.46961.53712.55342.15652.78503.50722.81141.09351.09251.0937
H63.11292.06531.09652.15652.15652.48782.50203.07112.48782.50203.0711
H74.48963.40982.16231.09352.78502.48781.77361.77372.56933.78453.1457
H83.54012.72312.18771.09253.50722.50201.77361.77283.78454.35003.8171
H93.59972.75892.17861.09372.81143.07111.77371.77283.14573.81712.6270
H104.48963.40982.16232.78501.09352.48782.56933.78453.14571.77361.7737
H113.54012.72312.18773.50721.09252.50203.78454.35003.81711.77361.7728
H123.59972.75892.17862.81141.09373.07113.14573.81712.62701.77371.7728

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 179.307 C2 C3 C4 110.304
C2 C3 C5 110.304 C2 C3 H6 106.138
C3 C4 H7 109.404 C3 C4 H8 111.475
C3 C4 H9 110.682 C3 C5 H10 109.404
C3 C5 H11 111.475 C3 C5 H12 110.682
C4 C3 C5 112.311 C4 C3 H6 108.784
C5 C3 H6 108.784 H7 C4 H8 108.453
H7 C4 H9 108.373 H8 C4 H9 108.372
H10 C5 H11 108.453 H10 C5 H12 108.373
H11 C5 H12 108.372
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.479      
2 C 0.177      
3 C 0.105      
4 C -0.522      
5 C -0.522      
6 H 0.198      
7 H 0.167      
8 H 0.178      
9 H 0.177      
10 H 0.167      
11 H 0.178      
12 H 0.177      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.221 4.073 0.000 4.252
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.759 1.824 0.000
y 1.824 -39.913 0.000
z 0.000 0.000 -30.170
Traceless
 xyz
x 4.282 1.824 0.000
y 1.824 -9.448 0.000
z 0.000 0.000 5.166
Polar
3z2-r210.332
x2-y29.154
xy1.824
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.295 -0.658 0.000
y -0.658 8.994 0.000
z 0.000 0.000 6.890


<r2> (average value of r2) Å2
<r2> 129.334
(<r2>)1/2 11.373