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: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-250.531118
Energy at 298.15K-250.540452
HF Energy-250.531118
Nuclear repulsion energy 
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 B97D3/6-31G*
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 3038 22.35      
2 A 3090 3029 23.88      
3 A 3078 3017 45.61      
4 A 3068 3008 41.24      
5 A 3039 2979 7.51      
6 A 3011 2952 16.86      
7 A 3000 2941 32.92      
8 A 2994 2936 17.49      
9 A 2973 2914 6.69      
10 A 2283 2238 9.34      
11 A 1516 1487 2.36      
12 A 1507 1477 7.50      
13 A 1503 1473 5.94      
14 A 1496 1467 7.39      
15 A 1487 1457 0.14      
16 A 1414 1387 1.16      
17 A 1407 1379 3.69      
18 A 1367 1340 0.95      
19 A 1332 1306 1.22      
20 A 1308 1282 3.87      
21 A 1273 1248 1.64      
22 A 1173 1150 2.30      
23 A 1118 1097 0.21      
24 A 1106 1084 6.01      
25 A 1030 1010 0.93      
26 A 983 964 0.67      
27 A 965 946 5.55      
28 A 886 868 0.45      
29 A 804 788 0.90      
30 A 756 742 2.81      
31 A 555 544 0.12      
32 A 528 518 0.97      
33 A 394 387 0.20      
34 A 320 313 0.51      
35 A 293 287 0.12      
36 A 221 217 0.11      
37 A 201 197 2.21      
38 A 157 154 5.10      
39 A 79 78 1.46      

Unscaled Zero Point Vibrational Energy (zpe) 28405.6 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 27848.8 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 B97D3/6-31G*
ABC
0.21440 0.07286 0.05826

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.529 -0.293 0.121
N2 -2.609 -0.689 -0.096
C3 -0.028 1.653 -0.152
H4 -0.129 1.682 -1.246
H5 -0.803 2.297 0.284
H6 0.953 2.060 0.121
C7 2.320 -0.422 0.071
H8 2.475 -0.362 1.160
H9 3.000 -1.191 -0.321
H10 2.621 0.539 -0.367
C11 0.866 -0.777 -0.263
H12 0.718 -0.789 -1.354
H13 0.641 -1.792 0.096
C14 -0.164 0.202 0.364
H15 -0.013 0.204 1.458

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 C7 H8 H9 H10 C11 H12 H13 C14 H15
C11.17062.47192.77972.69443.42013.85164.13634.63844.26052.47352.73292.63751.47212.0811
N21.17063.48473.61803.50984.50464.93915.24625.63605.37883.48023.55773.43742.64263.1542
C32.47193.48471.09891.09761.09723.14193.47024.15822.88192.59132.82213.51791.54542.1658
H42.77973.61801.09891.78071.78383.48744.09164.34813.10502.82872.61443.80292.18693.0834
H52.69443.50981.09761.78071.77954.14664.31025.19623.90353.54033.81034.34052.19152.5267
H63.42014.50461.09721.78381.77952.83463.04303.86792.30952.86433.21733.86502.18152.4834
C73.85164.93913.14193.48744.14662.83461.10101.09911.09881.53352.17612.16722.57822.7855
H84.13635.24623.47024.09164.31023.04301.10101.77691.77912.18703.09662.55702.81272.5683
H94.63845.63604.15824.34815.19623.86791.09911.77691.77252.17472.53782.46983.52483.7671
H104.26055.37882.88193.10503.90352.30951.09881.77911.77252.19592.52223.09352.89903.2221
C112.47353.48022.59132.82873.54032.86431.53352.18702.17472.19591.10121.10021.55352.1672
H122.73293.55772.82212.61443.81033.21732.17613.09662.53782.52221.10121.76492.17093.0704
H132.63753.43743.51793.80294.34053.86502.16722.55702.46983.09351.10021.76492.16732.5031
C141.47212.64261.54542.18692.19152.18152.57822.81273.52482.89901.55352.17092.16731.1040
H152.08113.15422.16583.08342.52672.48342.78552.56833.76713.22212.16723.07042.50311.1040

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 109.866 C1 C14 C11 109.692
C1 C14 H15 106.613 N2 C1 C14 177.354
C3 C14 C11 113.799 C3 C14 H15 108.517
H4 C3 H5 108.215 H4 C3 H6 108.548
H4 C3 C14 110.496 H5 C3 H6 108.155
H5 C3 C14 111.055 H6 C3 C14 110.287
C7 C11 H12 110.240 C7 C11 H13 109.392
C7 C11 C14 113.570 H8 C7 H9 107.678
H8 C7 H10 107.942 H8 C7 C11 111.149
H9 C7 H10 107.389 H9 C7 C11 110.374
H10 C7 C11 112.122 C11 C14 H15 108.082
H12 C11 H13 106.396 H12 C11 C14 108.566
H13 C11 C14 108.411
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.350      
2 N -0.477      
3 C -0.460      
4 H 0.170      
5 H 0.174      
6 H 0.166      
7 C -0.466      
8 H 0.153      
9 H 0.163      
10 H 0.159      
11 C -0.264      
12 H 0.160      
13 H 0.164      
14 C -0.173      
15 H 0.182      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.808 1.270 0.500 4.045
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.920 -3.721 -0.901
y -3.721 -36.919 -0.122
z -0.901 -0.122 -36.331
Traceless
 xyz
x -11.295 -3.721 -0.901
y -3.721 5.207 -0.122
z -0.901 -0.122 6.089
Polar
3z2-r212.177
x2-y2-11.001
xy-3.721
xz-0.901
yz-0.122


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.459 0.525 0.279
y 0.525 7.821 0.122
z 0.279 0.122 6.811


<r2> (average value of r2) Å2
<r2> 200.307
(<r2>)1/2 14.153