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All results from a given calculation for C5H9N (Butanenitrile, 2-methyl-)

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-250.531717
Energy at 298.15K-250.541197
Nuclear repulsion energy219.060391
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 B3PW91/6-31G
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 3167 3033 19.16      
2 A 3159 3025 20.19      
3 A 3147 3014 39.60      
4 A 3139 3006 35.06      
5 A 3105 2974 6.41      
6 A 3070 2940 15.64      
7 A 3061 2931 24.11      
8 A 3055 2926 22.15      
9 A 3037 2909 4.08      
10 A 2314 2216 11.56      
11 A 1554 1488 5.53      
12 A 1545 1480 15.70      
13 A 1543 1477 10.18      
14 A 1536 1471 10.70      
15 A 1530 1465 0.30      
16 A 1462 1400 7.25      
17 A 1452 1391 9.03      
18 A 1408 1348 0.50      
19 A 1365 1307 1.01      
20 A 1350 1293 1.01      
21 A 1313 1258 0.24      
22 A 1213 1162 2.66      
23 A 1161 1112 0.27      
24 A 1146 1098 10.36      
25 A 1070 1025 1.55      
26 A 1019 976 0.92      
27 A 1006 963 10.36      
28 A 915 876 0.35      
29 A 833 798 1.95      
30 A 783 750 4.09      
31 A 568 544 0.52      
32 A 542 520 1.44      
33 A 405 388 0.42      
34 A 326 312 0.26      
35 A 280 268 0.17      
36 A 220 211 0.16      
37 A 206 197 1.75      
38 A 163 156 4.58      
39 A 82 78 1.41      

Unscaled Zero Point Vibrational Energy (zpe) 29125.6 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 27893.6 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 B3PW91/6-31G
ABC
0.21484 0.07287 0.05830

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.526 -0.296 0.118
N2 -2.611 -0.693 -0.084
C3 -0.031 1.652 -0.149
H4 -0.150 1.695 -1.237
H5 -0.791 2.296 0.304
H6 0.952 2.053 0.110
C7 2.318 -0.427 0.086
H8 2.459 -0.411 1.173
H9 3.000 -1.179 -0.326
H10 2.628 0.546 -0.310
C11 0.871 -0.764 -0.282
H12 0.742 -0.748 -1.372
H13 0.639 -1.786 0.045
C14 -0.165 0.200 0.354
H15 -0.006 0.195 1.444

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 C7 H8 H9 H10 C11 H12 H13 C14 H15
C11.17262.46992.77402.70053.41483.84624.12344.63234.25952.47432.75072.62921.46762.0760
N21.17263.48673.61813.52054.50284.93875.23035.63675.38763.48763.59203.43122.64023.1476
C32.46993.48671.09521.09411.09353.14643.49404.15192.88462.58312.80253.50841.54252.1594
H42.77403.61811.09521.77391.77663.51354.12944.36063.14562.82932.60433.79302.18353.0758
H52.70053.52051.09411.77391.77114.13914.31835.18153.88973.53153.79794.33302.18772.5163
H63.41484.50281.09351.77661.77112.83193.07833.85142.29252.84613.17593.85262.17772.4805
C73.84624.93873.14643.51354.13912.83191.09711.09521.09511.53082.17052.15992.57532.7628
H84.12345.23033.49404.12944.31833.07831.09711.76911.77352.18253.08862.54392.81592.5523
H94.63235.63674.15194.36065.18153.85141.09521.76911.76502.16972.52582.46533.51903.7490
H104.25955.38762.88463.14563.88972.29251.09511.77351.76502.19202.52143.08492.89143.1836
C112.47433.48762.58312.82933.53152.84611.53082.18252.16972.19201.09801.09721.55192.1603
H122.75073.59202.80252.60433.79793.17592.17053.08862.52582.52141.09801.76002.16843.0623
H132.62923.43123.50843.79304.33303.85262.15992.54392.46533.08491.09721.76002.16522.5091
C141.46762.64021.54252.18352.18772.17772.57532.81593.51902.89141.55192.16842.16521.1013
H152.07603.14762.15943.07582.51632.48052.76282.55233.74903.18362.16033.06232.50911.1013

picture of Butanenitrile, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C14 C3 110.253 C1 C14 C11 110.028
C1 C14 H15 106.964 N2 C1 C14 179.369
C3 C14 C11 113.181 C3 C14 H15 108.369
H4 C3 H5 108.247 H4 C3 H6 108.534
H4 C3 C14 110.603 H5 C3 H6 108.122
H5 C3 C14 111.006 H6 C3 C14 110.243
C7 C11 H12 110.222 C7 C11 H13 109.444
C7 C11 C14 113.317 H8 C7 H9 107.603
H8 C7 H10 107.997 H8 C7 C11 111.236
H9 C7 H10 107.374 H9 C7 C11 110.325
H10 C7 C11 112.115 C11 C14 H15 107.810
H12 C11 H13 106.591 H12 C11 C14 108.615
H13 C11 C14 108.415
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.161      
2 N -0.313      
3 C -0.468      
4 H 0.179      
5 H 0.184      
6 H 0.176      
7 C -0.486      
8 H 0.163      
9 H 0.173      
10 H 0.167      
11 C -0.290      
12 H 0.175      
13 H 0.181      
14 C -0.213      
15 H 0.210      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.926 1.324 0.497 4.173
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -48.602 -3.951 -0.902
y -3.951 -37.047 -0.130
z -0.902 -0.130 -36.525
Traceless
 xyz
x -11.816 -3.951 -0.902
y -3.951 5.517 -0.130
z -0.902 -0.130 6.300
Polar
3z2-r212.600
x2-y2-11.555
xy-3.951
xz-0.902
yz-0.130


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


<r2> (average value of r2) Å2
<r2> 200.373
(<r2>)1/2 14.155