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: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at G4
 hartrees
Energy at 0K-250.518759
Energy at 298.15K-250.510459
HF Energy-250.714056
Nuclear repulsion energy219.610007
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 B3LYP/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 3134 3025 16.72      
2 A 3125 3016 17.21      
3 A 3115 3006 33.18      
4 A 3107 2998 31.54      
5 A 3078 2970 5.19      
6 A 3051 2945 11.87      
7 A 3042 2936 26.16      
8 A 3037 2931 11.13      
9 A 3021 2915 3.31      
10 A 2356 2273 10.12      
11 A 1511 1458 2.28      
12 A 1505 1453 6.61      
13 A 1499 1447 4.78      
14 A 1494 1441 7.18      
15 A 1485 1433 0.19      
16 A 1417 1367 1.25      
17 A 1410 1360 3.38      
18 A 1379 1331 0.68      
19 A 1344 1297 1.45      
20 A 1317 1271 4.22      
21 A 1284 1239 1.60      
22 A 1186 1145 2.19      
23 A 1134 1094 0.14      
24 A 1116 1077 4.85      
25 A 1042 1006 1.11      
26 A 991 956 0.68      
27 A 973 939 4.31      
28 A 896 864 0.21      
29 A 811 782 0.59      
30 A 765 738 2.74      
31 A 571 551 0.14      
32 A 541 522 1.14      
33 A 394 381 0.21      
34 A 328 317 0.94      
35 A 277 267 0.16      
36 A 221 213 0.24      
37 A 208 201 2.32      
38 A 166 160 5.73      
39 A 84 81 1.54      

Unscaled Zero Point Vibrational Energy (zpe) 28706.8 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 27702.0 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 B3LYP/6-31G(2df,p)
ABC
0.21430 0.07343 0.05859

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.522 -0.304 0.115
N2 -2.588 -0.705 -0.084
C3 -0.049 1.655 -0.149
H4 -0.170 1.699 -1.235
H5 -0.816 2.287 0.305
H6 0.929 2.068 0.109
C7 2.319 -0.423 0.084
H8 2.464 -0.410 1.170
H9 2.998 -1.173 -0.331
H10 2.628 0.551 -0.307
C11 0.871 -0.759 -0.279
H12 0.740 -0.748 -1.368
H13 0.639 -1.778 0.049
C14 -0.166 0.203 0.354
H15 -0.015 0.198 1.442

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 C7 H8 H9 H10 C11 H12 H13 C14 H15
C11.15602.46522.76842.69203.41073.84304.12434.62464.25812.46732.74122.61671.46742.0692
N21.15603.46703.59893.49894.48264.91775.21305.61095.36943.46433.56733.40292.62333.1242
C32.46523.46701.09401.09261.09223.15923.50974.16142.90032.58682.80783.50691.54152.1576
H42.76843.59891.09401.77071.77453.52684.14364.37073.16362.83542.61423.79372.18273.0731
H52.69203.49891.09261.77071.76984.15014.33375.18913.90563.53083.79894.32522.18442.5101
H63.41074.48261.09221.77451.76982.85283.10223.87042.31582.85433.18513.85742.17682.4834
C73.84304.91773.15923.52684.15012.85281.09581.09381.09381.53062.16922.15862.57622.7705
H84.12435.21303.50974.14364.33373.10221.09581.76701.76992.18183.08622.54132.82042.5664
H94.62465.61094.16144.37075.18913.87041.09381.76701.76302.16812.52052.46513.51713.7551
H104.25815.36942.90033.16363.90562.31581.09381.76991.76302.19192.52463.08302.89173.1889
C112.46733.46432.58682.83543.53082.85431.53062.18182.16812.19191.09631.09501.54882.1589
H122.74123.56732.80782.61423.79893.18512.16923.08622.52052.52461.09631.75422.16483.0589
H132.61673.40293.50693.79374.32523.85742.15862.54132.46513.08301.09501.75422.15922.5041
C141.46742.62331.54152.18272.18442.17682.57622.82043.51712.89171.54882.16482.15921.0985
H152.06923.12422.15763.07312.51012.48342.77052.56643.75513.18892.15893.05892.50411.0985

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 109.871 C1 C14 C11 109.673
C1 C14 H15 106.443 N2 C1 C14 178.390
C3 C14 C11 113.754 C3 C14 H15 108.588
H4 C3 H5 108.169 H4 C3 H6 108.479
H4 C3 C14 110.697 H5 C3 H6 108.147
H5 C3 C14 110.920 H6 C3 C14 110.339
C7 C11 H12 110.116 C7 C11 H13 109.448
C7 C11 C14 113.453 H8 C7 H9 107.630
H8 C7 H10 107.916 H8 C7 C11 111.247
H9 C7 H10 107.453 H9 C7 C11 110.265
H10 C7 C11 112.140 C11 C14 H15 108.234
H12 C11 H13 106.477 H12 C11 C14 108.669
H13 C11 C14 108.428
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.264      
2 N -0.324      
3 C -0.390      
4 H 0.136      
5 H 0.139      
6 H 0.128      
7 C -0.398      
8 H 0.120      
9 H 0.126      
10 H 0.125      
11 C -0.167      
12 H 0.117      
13 H 0.121      
14 C -0.122      
15 H 0.125      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.817 1.308 0.482 4.064
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 199.485
(<r2>)1/2 14.124