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

using model chemistry: HF/CEP-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 HF/CEP-31G
 hartrees
Energy at 0K-42.237596
Energy at 298.15K-42.247374
Nuclear repulsion energy119.674284
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-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 3320 2993 61.71      
2 A 3313 2986 88.88      
3 A 3301 2976 124.08      
4 A 3288 2964 78.89      
5 A 3273 2951 4.65      
6 A 3254 2933 8.55      
7 A 3231 2913 17.00      
8 A 3224 2906 46.51      
9 A 3207 2891 54.35      
10 A 2492 2246 20.43      
11 A 1648 1486 2.45      
12 A 1646 1483 12.92      
13 A 1637 1476 9.73      
14 A 1633 1472 11.96      
15 A 1630 1469 0.37      
16 A 1568 1413 5.03      
17 A 1563 1409 3.69      
18 A 1524 1374 2.81      
19 A 1475 1330 1.91      
20 A 1452 1309 3.11      
21 A 1405 1266 0.48      
22 A 1303 1175 2.81      
23 A 1251 1128 0.65      
24 A 1226 1105 11.81      
25 A 1128 1017 2.49      
26 A 1086 979 0.77      
27 A 1064 959 6.46      
28 A 962 867 2.06      
29 A 880 793 2.46      
30 A 825 744 4.27      
31 A 614 553 0.66      
32 A 577 520 3.26      
33 A 422 380 0.78      
34 A 350 315 0.82      
35 A 295 266 0.37      
36 A 223 201 0.89      
37 A 219 197 1.41      
38 A 183 165 6.19      
39 A 90 81 1.79      

Unscaled Zero Point Vibrational Energy (zpe) 30891.3 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 27845.4 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-31G
ABC
0.21273 0.07214 0.05771

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.600 -0.359 0.121
N2 -2.666 -0.776 -0.078
C3 -0.148 1.641 -0.145
H4 -0.267 1.677 -1.227
H5 -0.929 2.251 0.304
H6 0.813 2.079 0.113
C7 2.279 -0.401 0.085
H8 2.415 -0.384 1.168
H9 2.967 -1.140 -0.324
H10 2.572 0.572 -0.308
C11 0.825 -0.765 -0.288
H12 0.699 -0.740 -1.370
H13 0.621 -1.786 0.030
C14 -0.226 0.178 0.366
H15 -0.078 0.172 1.445

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 C7 H8 H9 H10 C11 H12 H13 C14 H15
C11.16252.48532.78202.70123.43003.87934.14904.65414.29562.49172.76632.64091.49492.0857
N21.16253.49073.61853.51074.50464.96275.24685.65065.41383.49753.60523.44072.65733.1493
C32.48533.49071.08911.08801.08733.18023.52014.17972.92722.59892.80843.51661.55112.1657
H42.78203.61851.08911.76391.76673.53874.14414.38313.18192.83492.60693.78992.18773.0725
H52.70123.51071.08801.76391.76104.16824.34405.20323.93083.53863.79474.33322.18932.5198
H63.43004.50461.08731.76671.76102.88103.12163.89782.35422.87193.18713.87092.18102.4913
C73.87934.96273.18023.53874.16822.88101.09151.08931.08921.54522.17492.16192.58722.7809
H84.14905.24683.52014.14414.34403.12161.09151.76131.76532.18963.08452.54602.81712.5690
H94.65415.65064.17974.38315.20323.89781.08931.76131.75712.17522.52972.45923.52323.7577
H104.29565.41382.92723.18193.93082.35421.08921.76531.75712.20002.52123.07942.90533.2023
C112.49173.49752.59892.83493.53862.87191.54522.18962.17522.20001.08991.08911.55662.1667
H122.76633.60522.80842.60693.79473.18712.17493.08452.52972.52121.08991.74992.17163.0594
H132.64093.44073.51663.78994.33323.87092.16192.54602.45923.07941.08911.74992.16592.5146
C141.49492.65731.55112.18772.18932.18102.58722.81713.52322.90531.55662.17162.16591.0888
H152.08573.14932.16573.07252.51982.49132.78092.56903.75773.20232.16673.05942.51461.0888

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 109.350 C1 C14 C11 109.471
C1 C14 H15 106.604 N2 C1 C14 179.580
C3 C14 C11 113.501 C3 C14 H15 108.990
H4 C3 H5 108.238 H4 C3 H6 108.541
H4 C3 C14 110.699 H5 C3 H6 108.103
H5 C3 C14 110.896 H6 C3 C14 110.278
C7 C11 H12 110.049 C7 C11 H13 109.079
C7 C11 C14 113.046 H8 C7 H9 107.727
H8 C7 H10 108.096 H8 C7 C11 111.117
H9 C7 H10 107.526 H9 C7 C11 110.107
H10 C7 C11 112.096 C11 C14 H15 108.692
H12 C11 H13 106.852 H12 C11 C14 109.006
H13 C11 C14 108.610
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.621      
2 N 0.347      
3 C -0.390      
4 H 0.118      
5 H 0.142      
6 H 0.132      
7 C -0.304      
8 H 0.094      
9 H 0.143      
10 H 0.096      
11 C -0.174      
12 H 0.099      
13 H 0.117      
14 C 0.072      
15 H 0.130      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.287 1.567 0.571 4.600
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -51.619 -4.865 -1.041
y -4.865 -38.431 -0.196
z -1.041 -0.196 -37.204
Traceless
 xyz
x -13.802 -4.865 -1.041
y -4.865 5.981 -0.196
z -1.041 -0.196 7.821
Polar
3z2-r215.642
x2-y2-13.188
xy-4.865
xz-1.041
yz-0.196


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.569 0.601 0.278
y 0.601 7.227 0.076
z 0.278 0.076 6.340


<r2> (average value of r2) Å2
<r2> 163.155
(<r2>)1/2 12.773