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All results from a given calculation for C5H9N (Butanenitrile, 2-methyl-)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-249.836718
Energy at 298.15K-249.846219
HF Energy-249.025294
Nuclear repulsion energy219.665272
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 MP2/6-31G*
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 3218 3035 13.50      
2 A 3208 3025 13.40      
3 A 3205 3022 26.25      
4 A 3194 3012 22.36      
5 A 3160 2980 8.69      
6 A 3116 2939 10.60      
7 A 3110 2933 23.89      
8 A 3108 2931 6.80      
9 A 3094 2918 2.76      
10 A 2203 2078 0.21      
11 A 1575 1486 3.21      
12 A 1567 1477 10.80      
13 A 1561 1472 8.02      
14 A 1557 1468 7.45      
15 A 1548 1460 0.22      
16 A 1474 1390 3.29      
17 A 1468 1384 5.97      
18 A 1426 1345 0.36      
19 A 1393 1314 0.99      
20 A 1358 1280 1.59      
21 A 1326 1251 1.12      
22 A 1229 1159 1.86      
23 A 1183 1116 0.11      
24 A 1150 1085 5.98      
25 A 1089 1027 1.09      
26 A 1033 974 0.95      
27 A 1005 947 5.02      
28 A 929 876 0.28      
29 A 836 788 0.72      
30 A 789 744 3.21      
31 A 557 525 0.17      
32 A 536 505 0.86      
33 A 410 387 0.30      
34 A 324 306 0.56      
35 A 298 281 0.13      
36 A 226 213 0.08      
37 A 202 191 2.40      
38 A 159 150 5.32      
39 A 90 84 1.41      

Unscaled Zero Point Vibrational Energy (zpe) 29456.9 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 27777.9 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 MP2/6-31G*
ABC
0.21732 0.07329 0.05872

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.518 -0.287 0.123
N2 -2.609 -0.677 -0.095
C3 -0.016 1.637 -0.152
H4 -0.138 1.661 -1.238
H5 -0.776 2.283 0.295
H6 0.968 2.038 0.100
C7 2.304 -0.427 0.072
H8 2.455 -0.396 1.156
H9 2.976 -1.184 -0.339
H10 2.603 0.540 -0.341
C11 0.857 -0.769 -0.267
H12 0.710 -0.766 -1.353
H13 0.627 -1.782 0.081
C14 -0.154 0.202 0.365
H15 0.002 0.202 1.453

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 C7 H8 H9 H10 C11 H12 H13 C14 H15
C11.17972.45582.74812.67993.40363.82444.10664.60584.22842.45452.71532.61511.46922.0776
N21.17973.47603.58913.50354.49534.92235.22465.61375.35823.47203.55113.42472.64873.1605
C32.45583.47601.09351.09261.09213.11303.45724.11702.84622.56192.78283.48661.53172.1526
H42.74813.58911.09351.77331.77643.46984.08544.31343.09492.79992.57363.76572.16853.0644
H52.67993.50351.09261.77331.77154.10764.28445.14773.85483.50623.77074.30512.17292.5045
H63.40364.49531.09211.77641.77152.80363.04193.82242.26142.83293.16843.83512.16802.4768
C73.82444.92233.11303.46984.10762.80361.09451.09331.09261.52462.16462.15552.55332.7566
H84.10665.22463.45724.08544.28443.04191.09451.76811.77122.17183.07842.53322.79082.5426
H94.60585.61374.11704.31345.14773.82241.09331.76811.76392.16042.51752.45933.49463.7386
H104.22845.35822.84623.09493.85482.26141.09261.77121.76392.18302.51223.07722.86573.1775
C112.45453.47202.56192.79993.50622.83291.52462.17182.16042.18301.09621.09531.53742.1519
H122.71533.55112.78282.57363.77073.16842.16463.07842.51752.51221.09621.75922.15323.0514
H132.61513.42473.48663.76574.30513.83512.15552.53322.45933.07721.09531.75922.15082.4919
C141.46922.64871.53172.16852.17292.16802.55332.79083.49462.86571.53742.15322.15081.0983
H152.07763.16052.15263.06442.50452.47682.75662.54263.73863.17752.15193.05142.49191.0983

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 109.826 C1 C14 C11 109.431
C1 C14 H15 107.154 N2 C1 C14 178.823
C3 C14 C11 113.181 C3 C14 H15 108.748
H4 C3 H5 108.425 H4 C3 H6 108.732
H4 C3 C14 110.269 H5 C3 H6 108.365
H5 C3 C14 110.673 H6 C3 C14 110.314
C7 C11 H12 110.299 C7 C11 H13 109.632
C7 C11 C14 112.995 H8 C7 H9 107.836
H8 C7 H10 108.156 H8 C7 C11 110.972
H9 C7 H10 107.599 H9 C7 C11 110.138
H10 C7 C11 111.984 C11 C14 H15 108.310
H12 C11 H13 106.785 H12 C11 C14 108.527
H13 C11 C14 108.393
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability