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

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-42.250514
Energy at 298.15K-42.260323
Nuclear repulsion energy119.969384
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 HF/CEP-121G
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 3265 2979 42.16      
2 A 3255 2970 56.29      
3 A 3244 2960 91.57      
4 A 3232 2949 62.27      
5 A 3213 2932 3.66      
6 A 3186 2907 9.21      
7 A 3168 2891 11.99      
8 A 3161 2884 34.99      
9 A 3144 2869 43.09      
10 A 2465 2249 20.18      
11 A 1650 1506 3.13      
12 A 1646 1502 11.93      
13 A 1638 1495 7.76      
14 A 1634 1491 10.03      
15 A 1630 1488 0.55      
16 A 1561 1425 5.35      
17 A 1557 1420 5.29      
18 A 1518 1385 2.04      
19 A 1470 1341 1.67      
20 A 1448 1322 2.84      
21 A 1403 1280 0.55      
22 A 1302 1188 2.68      
23 A 1245 1136 0.72      
24 A 1223 1116 11.44      
25 A 1123 1025 2.65      
26 A 1082 987 0.67      
27 A 1057 965 5.29      
28 A 954 871 2.00      
29 A 878 801 1.99      
30 A 821 749 3.54      
31 A 613 559 0.32      
32 A 576 526 2.66      
33 A 423 386 0.70      
34 A 346 316 0.81      
35 A 293 267 0.40      
36 A 220 200 1.83      
37 A 217 198 0.32      
38 A 181 165 6.01      
39 A 89 81 1.74      

Unscaled Zero Point Vibrational Energy (zpe) 30564.4 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 27890.0 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 HF/CEP-121G
ABC
0.21324 0.07256 0.05795

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.597 -0.358 0.118
N2 -2.656 -0.775 -0.080
C3 -0.147 1.640 -0.144
H4 -0.254 1.679 -1.224
H5 -0.930 2.248 0.297
H6 0.808 2.078 0.123
C7 2.275 -0.399 0.081
H8 2.416 -0.360 1.159
H9 2.958 -1.146 -0.315
H10 2.568 0.562 -0.332
C11 0.822 -0.768 -0.278
H12 0.693 -0.759 -1.358
H13 0.620 -1.782 0.053
C14 -0.231 0.180 0.364
H15 -0.086 0.175 1.441

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 C7 H8 H9 H10 C11 H12 H13 C14 H15
C11.15582.48252.78392.69533.42293.87264.14624.64264.28892.48582.75362.63641.48862.0778
N21.15583.48373.61953.50164.49284.94845.23835.63115.39853.48443.58443.43042.64443.1342
C32.48253.48371.08581.08471.08393.17383.50234.17452.92712.59892.81713.51281.54852.1591
H42.78393.61951.08581.75841.76103.52334.11864.37253.16322.83502.61903.79122.18363.0642
H52.69533.50161.08471.75841.75524.16204.32905.19633.93353.53463.79644.32472.18412.5132
H63.42294.49281.08391.76101.75522.87843.09843.89872.36672.87343.20233.86512.17722.4813
C73.87264.94843.17383.52334.16202.87841.08801.08621.08561.54112.16872.15722.58722.7851
H84.14625.23833.50234.11864.32903.09841.08801.75531.75932.18453.07632.54392.81602.5748
H94.64265.63114.17454.37255.19633.89871.08621.75531.75122.16882.52342.45043.51893.7541
H104.28895.39852.92713.16323.93352.36671.08561.75931.75122.19472.51273.07182.90913.2154
C112.48583.48442.59892.83503.53462.87341.54112.18452.16882.19471.08721.08641.55522.1613
H122.75363.58442.81712.61903.79643.20232.16873.07632.52342.51271.08721.74402.16763.0519
H132.63643.43043.51283.79124.32473.86512.15722.54392.45043.07181.08641.74402.16102.5016
C141.48862.64441.54852.18362.18412.17722.58722.81603.51892.90911.55522.16762.16101.0869
H152.07783.13422.15913.06422.51322.48132.78512.57483.75413.21542.16133.05192.50161.0869

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 109.629 C1 C14 C11 109.483
C1 C14 H15 106.514 N2 C1 C14 179.628
C3 C14 C11 113.723 C3 C14 H15 108.757
H4 C3 H5 108.222 H4 C3 H6 108.509
H4 C3 C14 110.752 H5 C3 H6 108.066
H5 C3 C14 110.852 H6 C3 C14 110.350
C7 C11 H12 109.995 C7 C11 H13 109.141
C7 C11 C14 113.349 H8 C7 H9 107.668
H8 C7 H10 108.069 H8 C7 C11 111.205
H9 C7 H10 107.479 H9 C7 C11 110.065
H10 C7 C11 112.173 C11 C14 H15 108.475
H12 C11 H13 106.716 H12 C11 C14 108.939
H13 C11 C14 108.475
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.353      
2 N 0.148      
3 C -0.510      
4 H 0.159      
5 H 0.170      
6 H 0.171      
7 C -0.486      
8 H 0.145      
9 H 0.161      
10 H 0.152      
11 C -0.229      
12 H 0.142      
13 H 0.157      
14 C 0.004      
15 H 0.169      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.225 1.547 0.565 4.535
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -51.306 -4.805 -1.038
y -4.805 -38.430 -0.177
z -1.038 -0.177 -37.430
Traceless
 xyz
x -13.376 -4.805 -1.038
y -4.805 5.939 -0.177
z -1.038 -0.177 7.438
Polar
3z2-r214.875
x2-y2-12.877
xy-4.805
xz-1.038
yz-0.177


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.945 0.568 0.263
y 0.568 7.748 0.121
z 0.263 0.121 6.952


<r2> (average value of r2) Å2
<r2> 162.542
(<r2>)1/2 12.749