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: LSDA/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 LSDA/6-31G*
 hartrees
Energy at 0K-249.281556
Energy at 298.15K-249.290900
Nuclear repulsion energy221.145109
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 LSDA/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 3099 3041 7.26      
2 A 3088 3030 10.43      
3 A 3084 3026 12.07      
4 A 3070 3012 23.29      
5 A 3036 2979 4.14      
6 A 3003 2947 9.68      
7 A 2993 2938 23.33      
8 A 2988 2932 3.74      
9 A 2954 2899 3.26      
10 A 2323 2280 12.58      
11 A 1473 1445 5.71      
12 A 1463 1435 13.00      
13 A 1459 1432 10.56      
14 A 1450 1423 16.06      
15 A 1441 1414 0.80      
16 A 1375 1349 7.55      
17 A 1369 1343 11.26      
18 A 1338 1313 1.47      
19 A 1304 1280 1.40      
20 A 1274 1250 0.91      
21 A 1239 1216 0.55      
22 A 1156 1135 2.37      
23 A 1137 1116 0.34      
24 A 1093 1072 5.27      
25 A 1062 1042 1.92      
26 A 992 973 5.55      
27 A 945 928 7.16      
28 A 905 888 1.77      
29 A 806 791 0.36      
30 A 757 743 5.87      
31 A 558 547 0.14      
32 A 536 526 1.08      
33 A 392 385 0.48      
34 A 321 315 0.45      
35 A 300 295 0.08      
36 A 222 218 0.18      
37 A 199 195 2.31      
38 A 156 153 5.03      
39 A 86 84 1.46      

Unscaled Zero Point Vibrational Energy (zpe) 28223.0 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 27695.3 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 LSDA/6-31G*
ABC
0.22202 0.07458 0.05989

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.512 -0.272 0.119
N2 -2.595 -0.650 -0.099
C3 0.008 1.616 -0.150
H4 -0.098 1.644 -1.248
H5 -0.745 2.293 0.284
H6 1.008 1.999 0.111
C7 2.276 -0.420 0.064
H8 2.440 -0.352 1.156
H9 2.972 -1.179 -0.329
H10 2.565 0.549 -0.377
C11 0.844 -0.782 -0.252
H12 0.683 -0.805 -1.347
H13 0.618 -1.800 0.114
C14 -0.160 0.194 0.363
H15 -0.007 0.192 1.463

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 C7 H8 H9 H10 C11 H12 H13 C14 H15
C11.16722.43882.74612.68223.39273.79154.08644.59674.18872.43962.69302.62201.45102.0707
N21.16723.45143.58023.49694.47694.87905.19715.59655.30473.44513.51073.41952.61813.1378
C32.43883.45141.10391.10161.10233.05513.38994.07772.77982.54202.78403.48021.52142.1519
H42.74613.58021.10391.78541.78843.40864.02544.27063.00812.78692.57263.77252.16903.0773
H52.68223.49691.10161.78541.78584.06614.23075.12293.79923.50293.78124.31752.18082.5198
H63.39274.47691.10231.78841.78582.73172.94443.76192.18302.81013.17783.81942.16512.4747
C73.79154.87903.05513.40864.06612.73171.10541.10241.10361.51052.16322.15772.52952.7465
H84.08645.19713.38994.02544.23072.94441.10541.78071.78272.17093.09132.54942.77192.5254
H94.59675.59654.07774.27065.12293.76191.10241.78071.77612.16552.53292.47403.48853.7370
H104.18875.30472.77983.00813.79922.18301.10361.78271.77612.17942.51363.09052.84593.1829
C112.43963.44512.54202.78693.50292.81011.51052.17092.16552.17941.10691.10511.52952.1488
H122.69303.51072.78402.57263.78123.17782.16323.09132.53292.51361.10691.76892.15233.0609
H132.62203.41953.48023.77254.31753.81942.15772.54942.47403.09051.10511.76892.15472.4861
C141.45102.61811.52142.16902.18082.16512.52952.77193.48852.84591.52952.15232.15471.1107
H152.07073.13782.15193.07732.51982.47472.74652.52543.73703.18292.14883.06092.48611.1107

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 110.246 C1 C14 C11 109.844
C1 C14 H15 107.113 N2 C1 C14 178.891
C3 C14 C11 112.857 C3 C14 H15 108.677
H4 C3 H5 108.096 H4 C3 H6 108.317
H4 C3 C14 110.410 H5 C3 H6 108.242
H5 C3 C14 111.486 H6 C3 C14 110.193
C7 C11 H12 110.532 C7 C11 H13 110.199
C7 C11 C14 112.623 H8 C7 H9 107.516
H8 C7 H10 107.612 H8 C7 C11 111.234
H9 C7 H10 107.247 H9 C7 C11 110.986
H10 C7 C11 112.027 C11 C14 H15 107.905
H12 C11 H13 106.200 H12 C11 C14 108.388
H13 C11 C14 108.668
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.324      
2 N -0.444      
3 C -0.540      
4 H 0.195      
5 H 0.201      
6 H 0.188      
7 C -0.543      
8 H 0.178      
9 H 0.190      
10 H 0.182      
11 C -0.314      
12 H 0.184      
13 H 0.190      
14 C -0.199      
15 H 0.207      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.852 1.210 0.516 4.070
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.843 -3.615 -0.908
y -3.615 -36.815 -0.117
z -0.908 -0.117 -36.382
Traceless
 xyz
x -11.244 -3.615 -0.908
y -3.615 5.298 -0.117
z -0.908 -0.117 5.946
Polar
3z2-r211.893
x2-y2-11.028
xy-3.615
xz-0.908
yz-0.117


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.442 0.461 0.285
y 0.461 7.830 0.119
z 0.285 0.119 6.889


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000