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 C5H9N (Butanenitrile, 2-methyl-)

using model chemistry: HF/STO-3G

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/STO-3G
 hartrees
Energy at 0K-246.011638
Energy at 298.15K-246.021200
Nuclear repulsion energy218.686306
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/STO-3G
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 3768 3076 0.14      
2 A 3761 3071 0.87      
3 A 3760 3070 0.62      
4 A 3754 3065 0.85      
5 A 3728 3044 0.49      
6 A 3633 2967 0.07      
7 A 3614 2951 1.50      
8 A 3579 2923 0.50      
9 A 3574 2919 1.23      
10 A 2753 2248 9.75      
11 A 1843 1505 0.79      
12 A 1837 1500 1.71      
13 A 1827 1492 3.69      
14 A 1826 1491 2.13      
15 A 1817 1483 0.09      
16 A 1744 1424 0.27      
17 A 1732 1414 0.02      
18 A 1682 1373 2.31      
19 A 1614 1318 4.23      
20 A 1556 1271 13.68      
21 A 1522 1243 2.92      
22 A 1410 1151 2.50      
23 A 1358 1109 0.33      
24 A 1318 1076 5.70      
25 A 1244 1015 2.48      
26 A 1183 966 0.36      
27 A 1153 941 3.30      
28 A 1058 864 0.60      
29 A 951 776 1.20      
30 A 899 734 3.52      
31 A 642 524 0.38      
32 A 609 497 2.10      
33 A 446 364 0.30      
34 A 364 297 1.18      
35 A 297 242 0.52      
36 A 228 186 1.38      
37 A 223 182 0.42      
38 A 188 153 4.62      
39 A 88 72 1.02      

Unscaled Zero Point Vibrational Energy (zpe) 34290.5 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 27998.2 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/STO-3G
ABC
0.21286 0.07232 0.05783

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.544 -0.308 0.115
N2 -2.610 -0.703 -0.083
C3 -0.041 1.663 -0.151
H4 -0.155 1.698 -1.231
H5 -0.811 2.283 0.298
H6 0.927 2.076 0.111
C7 2.334 -0.430 0.088
H8 2.461 -0.424 1.167
H9 2.999 -1.181 -0.328
H10 2.635 0.537 -0.299
C11 0.877 -0.760 -0.288
H12 0.760 -0.728 -1.370
H13 0.647 -1.773 0.034
C14 -0.157 0.206 0.362
H15 -0.005 0.203 1.444

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 C7 H8 H9 H10 C11 H12 H13 C14 H15
C11.15442.49242.78592.69833.43303.87994.14234.64724.28292.49502.77242.63711.49912.0966
N21.15443.49333.62093.50684.50244.95475.23045.63495.39373.49333.60723.43052.65353.1527
C32.49243.49331.08581.08581.08483.17573.51534.16742.90702.59462.80093.51001.54962.1635
H42.78593.62091.08581.76371.76423.53094.13474.36523.16192.82722.59673.78082.18263.0682
H52.69833.50681.08581.76371.76064.15944.33475.18773.90873.52853.78384.31872.17852.5080
H63.43304.50241.08481.76421.76062.87463.11753.88532.33472.86403.17543.86042.17622.4812
C73.87994.95473.17573.53094.15942.87461.08601.08581.08501.54092.16662.15712.58592.7769
H84.14235.23043.51534.13474.33473.11751.08601.75991.76152.17733.06972.52902.81062.5596
H94.64725.63494.16744.36525.18773.88531.08581.75991.75712.16432.51132.45243.51613.7525
H104.28295.39372.90703.16193.90872.33471.08501.76151.75712.18462.50283.06622.88813.1809
C112.49503.49332.59462.82723.52852.86401.54092.17732.16432.18461.08841.08841.55702.1692
H122.77243.60722.80092.59673.78383.17542.16663.06972.51132.50281.08841.75392.17093.0612
H132.63713.43053.51003.78084.31873.86042.15712.52902.45243.06621.08841.75392.16162.5139
C141.49912.65351.54962.18262.17852.17622.58592.81063.51612.88811.55702.17092.16161.0928
H152.09663.15272.16353.06822.50802.48122.77692.55963.75253.18092.16923.06122.51391.0928

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 109.670 C1 C14 C11 109.439
C1 C14 H15 106.932 N2 C1 C14 179.638
C3 C14 C11 113.276 C3 C14 H15 108.691
H4 C3 H5 108.617 H4 C3 H6 108.741
H4 C3 C14 110.595 H5 C3 H6 108.410
H5 C3 C14 110.271 H6 C3 C14 110.151
C7 C11 H12 109.784 C7 C11 H13 109.035
C7 C11 C14 113.175 H8 C7 H9 108.261
H8 C7 H10 108.464 H8 C7 C11 110.768
H9 C7 H10 108.080 H9 C7 C11 109.754
H10 C7 C11 111.417 C11 C14 H15 108.629
H12 C11 H13 107.368 H12 C11 C14 109.013
H13 C11 C14 108.291
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.061      
2 N -0.208      
3 C -0.176      
4 H 0.070      
5 H 0.072      
6 H 0.070      
7 C -0.179      
8 H 0.061      
9 H 0.066      
10 H 0.062      
11 C -0.091      
12 H 0.064      
13 H 0.066      
14 C -0.018      
15 H 0.081      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.117 1.091 0.422 3.329
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.339 -3.275 -0.798
y -3.275 -35.563 -0.143
z -0.798 -0.143 -34.727
Traceless
 xyz
x -10.194 -3.275 -0.798
y -3.275 4.471 -0.143
z -0.798 -0.143 5.724
Polar
3z2-r211.447
x2-y2-9.777
xy-3.275
xz-0.798
yz-0.143


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.344 0.422 0.197
y 0.422 3.829 0.080
z 0.197 0.080 3.393


<r2> (average value of r2) Å2
<r2> 200.226
(<r2>)1/2 14.150