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: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-250.368427
Energy at 298.15K-250.377705
Nuclear repulsion energy218.879294
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 PBEPBE/6-31G(2df,p)
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 3081 3050 12.63      
2 A 3074 3043 13.83      
3 A 3064 3033 23.37      
4 A 3056 3025 28.50      
5 A 3023 2992 4.74      
6 A 2991 2961 12.52      
7 A 2983 2952 26.03      
8 A 2978 2947 8.57      
9 A 2952 2922 3.95      
10 A 2269 2245 9.34      
11 A 1460 1445 2.84      
12 A 1454 1439 7.15      
13 A 1449 1434 5.43      
14 A 1442 1427 8.34      
15 A 1432 1417 0.23      
16 A 1361 1347 1.75      
17 A 1354 1340 4.76      
18 A 1324 1311 0.38      
19 A 1295 1281 1.29      
20 A 1266 1253 3.22      
21 A 1236 1223 1.68      
22 A 1146 1134 2.21      
23 A 1104 1093 0.20      
24 A 1078 1067 4.05      
25 A 1027 1016 1.23      
26 A 967 958 2.49      
27 A 942 932 4.61      
28 A 879 870 0.88      
29 A 789 781 0.41      
30 A 745 737 3.61      
31 A 554 548 0.08      
32 A 527 521 0.99      
33 A 383 379 0.21      
34 A 319 316 0.60      
35 A 270 267 0.10      
36 A 217 215 0.21      
37 A 201 199 2.01      
38 A 159 158 4.97      
39 A 81 80 1.45      

Unscaled Zero Point Vibrational Energy (zpe) 27965.4 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 27677.3 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 PBEPBE/6-31G(2df,p)
ABC
0.21356 0.07303 0.05832

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.523 -0.298 0.117
N2 -2.602 -0.701 -0.084
C3 -0.040 1.656 -0.149
H4 -0.165 1.700 -1.243
H5 -0.807 2.299 0.309
H6 0.949 2.065 0.107
C7 2.320 -0.426 0.083
H8 2.467 -0.413 1.177
H9 3.005 -1.179 -0.335
H10 2.630 0.555 -0.310
C11 0.870 -0.764 -0.279
H12 0.736 -0.753 -1.375
H13 0.634 -1.789 0.052
C14 -0.164 0.203 0.354
H15 -0.011 0.197 1.451

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 C7 H8 H9 H10 C11 H12 H13 C14 H15
C11.16942.46782.77272.70053.41963.84474.12924.63514.26062.47002.74502.62221.46722.0763
N21.16943.48203.61223.51754.50494.93215.23105.63335.38503.47843.57923.41632.63653.1431
C32.46783.48201.10151.10001.10013.15623.51104.16562.89282.58912.81253.51641.54322.1660
H42.77273.61221.10151.78281.78703.52874.15264.37743.16072.84072.61623.80602.18903.0886
H52.70053.51751.10001.78281.78254.15364.33895.20053.90323.54083.81154.34162.19242.5209
H63.41964.50491.10011.78701.78252.84403.09733.86692.29812.85613.19093.86732.18352.4933
C73.84474.93213.15623.52874.15362.84401.10331.10111.10161.53152.17762.16802.57682.7731
H84.12925.23103.51104.15264.33893.09731.10331.77871.78172.18863.10202.55292.82462.5661
H94.63515.63334.16564.37745.20053.86691.10111.77871.77452.17572.53232.47923.52613.7660
H104.26065.38502.89283.16073.90322.29811.10161.78171.77452.19882.53593.09972.89343.1938
C112.47003.47842.58912.84073.54082.85611.53152.18862.17572.19881.10431.10301.55132.1664
H122.74503.57922.81252.61623.81153.19092.17763.10202.53232.53591.10431.76632.17143.0737
H132.62223.41633.51643.80604.34163.86732.16802.55292.47923.09971.10301.76632.16702.5136
C141.46722.63651.54322.18902.19242.18352.57682.82463.52612.89341.55132.17142.16701.1076
H152.07633.14312.16603.08862.52092.49332.77312.56613.76603.19382.16643.07372.51361.1076

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 110.096 C1 C14 C11 109.795
C1 C14 H15 106.662 N2 C1 C14 179.350
C3 C14 C11 113.582 C3 C14 H15 108.471
H4 C3 H5 108.156 H4 C3 H6 108.524
H4 C3 C14 110.611 H5 C3 H6 108.235
H5 C3 C14 110.969 H6 C3 C14 110.261
C7 C11 H12 110.364 C7 C11 H13 109.689
C7 C11 C14 113.410 H8 C7 H9 107.579
H8 C7 H10 107.814 H8 C7 C11 111.296
H9 C7 H10 107.336 H9 C7 C11 110.399
H10 C7 C11 112.211 C11 C14 H15 107.970
H12 C11 H13 106.301 H12 C11 C14 108.535
H13 C11 C14 108.273
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.314      
2 N -0.362      
3 C -0.421      
4 H 0.147      
5 H 0.150      
6 H 0.139      
7 C -0.430      
8 H 0.132      
9 H 0.138      
10 H 0.136      
11 C -0.193      
12 H 0.129      
13 H 0.133      
14 C -0.149      
15 H 0.137      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.779 1.271 0.467 4.014
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.751 -3.776 -0.839
y -3.776 -36.928 -0.107
z -0.839 -0.107 -36.312
Traceless
 xyz
x -11.131 -3.776 -0.839
y -3.776 5.103 -0.107
z -0.839 -0.107 6.028
Polar
3z2-r212.056
x2-y2-10.823
xy-3.776
xz-0.839
yz-0.107


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.861 0.462 0.229
y 0.462 8.276 0.104
z 0.229 0.104 7.148


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