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

using model chemistry: HF/3-21G

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/3-21G
 hartrees
Energy at 0K-247.650786
Energy at 298.15K-247.660748
Nuclear repulsion energy220.608052
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/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 3292 2981 22.38      
2 A 3280 2970 35.58      
3 A 3275 2966 34.49      
4 A 3262 2954 26.21      
5 A 3248 2941 3.22      
6 A 3229 2924 2.66      
7 A 3217 2913 5.09      
8 A 3214 2910 18.25      
9 A 3201 2899 20.01      
10 A 2580 2336 8.14      
11 A 1683 1524 5.02      
12 A 1674 1516 13.60      
13 A 1669 1512 11.36      
14 A 1666 1509 4.89      
15 A 1653 1497 0.84      
16 A 1584 1435 7.70      
17 A 1575 1426 6.58      
18 A 1524 1380 0.96      
19 A 1477 1338 0.79      
20 A 1474 1335 0.38      
21 A 1419 1285 0.08      
22 A 1306 1182 2.14      
23 A 1245 1127 12.68      
24 A 1235 1118 2.07      
25 A 1100 996 4.02      
26 A 1081 979 1.43      
27 A 1045 946 4.65      
28 A 948 859 0.72      
29 A 892 807 2.26      
30 A 826 748 3.48      
31 A 662 600 0.25      
32 A 613 555 2.22      
33 A 431 390 0.87      
34 A 371 336 0.67      
35 A 308 279 0.47      
36 A 240 217 1.28      
37 A 229 207 0.50      
38 A 199 180 4.96      
39 A 95 86 1.38      

Unscaled Zero Point Vibrational Energy (zpe) 31008.9 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 28081.6 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 HF/3-21G
ABC
0.21673 0.07390 0.05917

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.519 -0.308 0.119
N2 -2.571 -0.697 -0.083
C3 -0.056 1.645 -0.152
H4 -0.185 1.664 -1.227
H5 -0.816 2.271 0.299
H6 0.913 2.058 0.092
C7 2.317 -0.413 0.091
H8 2.440 -0.429 1.169
H9 2.995 -1.144 -0.335
H10 2.610 0.563 -0.275
C11 0.866 -0.754 -0.296
H12 0.743 -0.700 -1.372
H13 0.648 -1.771 0.007
C14 -0.166 0.194 0.369
H15 -0.006 0.186 1.442

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 C7 H8 H9 H10 C11 H12 H13 C14 H15
C11.14002.45542.73522.67953.39363.83774.09784.61344.23842.46162.73752.61711.46492.0693
N21.14003.43773.54653.46994.44594.89985.17255.59015.33593.44443.55613.39502.60493.1120
C32.45543.43771.08321.08281.08163.15073.50374.13782.88002.57392.76173.49171.54582.1618
H42.73523.54651.08321.75961.76133.50914.12474.33553.15192.79612.54413.74422.17023.0567
H52.67953.46991.08281.75961.75424.13064.31805.15613.87073.51163.74844.30902.17762.5119
H63.39364.44591.08161.76131.75422.84223.11063.84312.29112.83893.12733.83952.17192.4852
C73.83774.89983.15073.50914.13062.84221.08491.08381.08261.53992.16782.15342.57112.7539
H84.09785.17253.50374.12474.31803.11061.08491.75471.75932.17463.06722.52262.79612.5375
H94.61345.59014.13784.33555.15613.84311.08381.75471.75072.16502.51892.45363.50383.7329
H104.23845.33592.88003.15193.87072.29111.08261.75931.75072.18532.50703.06222.87333.1522
C112.46163.44442.57392.79613.51162.83891.53992.17462.16502.18531.08411.08381.55072.1598
H122.73753.55612.76172.54413.74843.12732.16783.06722.51892.50701.08411.74852.15773.0438
H132.61713.39503.49173.74424.30903.83952.15342.52262.45363.06221.08381.74852.15742.5133
C141.46492.60491.54582.17022.17762.17192.57112.79613.50382.87331.55072.15772.15741.0850
H152.06933.11202.16183.05672.51192.48522.75392.53753.73293.15222.15983.04382.51331.0850

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 109.256 C1 C14 C11 109.400
C1 C14 H15 107.561 N2 C1 C14 179.588
C3 C14 C11 112.453 C3 C14 H15 109.270
H4 C3 H5 108.659 H4 C3 H6 108.899
H4 C3 C14 110.032 H5 C3 H6 108.293
H5 C3 C14 110.646 H6 C3 C14 110.260
C7 C11 H12 110.197 C7 C11 H13 109.081
C7 C11 C14 112.589 H8 C7 H9 108.012
H8 C7 H10 108.516 H8 C7 C11 110.690
H9 C7 H10 107.818 H9 C7 C11 109.993
H10 C7 C11 111.691 C11 C14 H15 108.778
H12 C11 H13 107.522 H12 C11 C14 108.659
H13 C11 C14 108.654
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.380 0.242   0.344
2 N -0.518 -0.477   -0.485
3 C -0.550 -0.194   -0.342
4 H 0.220 0.056   0.115
5 H 0.226 0.056   0.109
6 H 0.220 0.048   0.107
7 C -0.597 -0.172   -0.268
8 H 0.204 0.037   0.082
9 H 0.216 0.055   0.085
10 H 0.209 0.039   0.079
11 C -0.385 0.085   -0.030
12 H 0.227 -0.008   0.058
13 H 0.234 -0.013   0.039
14 C -0.362 0.257   0.035
15 H 0.275 -0.012   0.072


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.871 1.343 0.502 4.128
CHELPG 3.998 1.406 0.527 4.271
AIM        
ESP 3.873 1.360 0.499 4.135


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -49.515 -3.955 -0.929
y -3.955 -38.043 -0.150
z -0.929 -0.150 -37.378
Traceless
 xyz
x -11.804 -3.955 -0.929
y -3.955 5.403 -0.150
z -0.929 -0.150 6.401
Polar
3z2-r212.802
x2-y2-11.471
xy-3.955
xz-0.929
yz-0.150


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.945 0.432 0.249
y 0.432 6.860 0.099
z 0.249 0.099 6.085


<r2> (average value of r2) Å2
<r2> 198.566
(<r2>)1/2 14.091