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

using model chemistry: MP2/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-43.188665
Energy at 298.15K-43.198056
HF Energy-42.367632
Nuclear repulsion energy119.820507
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/CEP-121G*
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 3184 3034 18.57      
2 A 3175 3025 21.80      
3 A 3171 3021 40.79      
4 A 3160 3011 33.54      
5 A 3135 2987 7.97      
6 A 3085 2939 13.90      
7 A 3076 2930 13.92      
8 A 3074 2929 14.80      
9 A 3066 2921 21.00      
10 A 2132 2031 0.18      
11 A 1551 1478 2.57      
12 A 1541 1468 15.46      
13 A 1534 1462 9.49      
14 A 1532 1459 5.86      
15 A 1520 1448 0.18      
16 A 1450 1382 5.18      
17 A 1448 1379 4.90      
18 A 1406 1340 0.35      
19 A 1371 1307 1.09      
20 A 1333 1270 1.62      
21 A 1302 1241 1.46      
22 A 1208 1151 1.77      
23 A 1165 1110 0.28      
24 A 1126 1073 5.10      
25 A 1069 1019 1.65      
26 A 1014 966 0.96      
27 A 981 935 3.66      
28 A 911 868 0.23      
29 A 815 777 0.63      
30 A 770 733 2.59      
31 A 545 520 0.42      
32 A 519 495 1.00      
33 A 404 385 0.23      
34 A 308 294 0.19      
35 A 298 284 0.19      
36 A 208 198 0.04      
37 A 194 185 1.80      
38 A 152 145 4.76      
39 A 91 86 1.48      

Unscaled Zero Point Vibrational Energy (zpe) 29010.5 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 27641.2 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/CEP-121G*
ABC
0.21633 0.07257 0.05821

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.594 -0.325 0.128
N2 -2.683 -0.733 -0.110
C3 -0.098 1.622 -0.148
H4 -0.172 1.628 -1.241
H5 -0.893 2.255 0.257
H6 0.865 2.052 0.142
C7 2.258 -0.401 0.050
H8 2.420 -0.266 1.126
H9 2.939 -1.184 -0.298
H10 2.535 0.528 -0.458
C11 0.801 -0.798 -0.238
H12 0.625 -0.841 -1.321
H13 0.607 -1.802 0.159
C14 -0.224 0.180 0.386
H15 -0.086 0.186 1.476

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 C7 H8 H9 H10 C11 H12 H13 C14 H15
C11.18722.47112.77682.67753.42013.85374.13674.63344.25682.46822.70022.65021.48312.0864
N21.18723.49733.62743.50314.51754.95515.27165.64355.37963.48673.52473.46952.67003.1792
C32.47113.49731.09541.09401.09353.11153.39554.13792.86812.58332.82253.50901.54302.1681
H42.77683.62741.09541.77641.77963.41833.98844.29833.02462.79932.59563.78512.17843.0771
H52.67753.50311.09401.77641.77304.12644.25355.17923.90463.52683.79254.32672.18482.5344
H63.42014.51751.09351.77961.77302.82252.96013.86932.33962.87633.25093.86252.17932.4833
C73.85374.95513.11153.41834.12642.82251.09661.09481.09411.53812.17702.16852.57082.8059
H84.13675.27163.39553.98844.25352.96011.09661.77181.77612.18343.08872.56552.78142.5704
H94.63345.64354.13794.29835.17923.86931.09481.77181.76662.17392.55322.45573.51163.7650
H104.25685.37962.86813.02463.90462.33961.09411.77611.76662.19432.50303.08652.90583.2755
C112.46823.48672.58332.79933.52682.87631.53812.18342.17392.19431.09761.09661.54772.1665
H122.70023.52472.82252.59563.79253.25092.17703.08872.55322.50301.09761.76452.16263.0635
H132.65023.46953.50903.78514.32673.86252.16852.56552.45573.08651.09661.76452.16052.4830
C141.48312.67001.54302.17842.18482.17932.57082.78143.51162.90581.54772.16262.16051.0990
H152.08643.17922.16813.07712.53442.48332.80592.57043.76503.27552.16653.06352.48301.0990

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 109.479 C1 C14 C11 109.032
C1 C14 H15 106.866 N2 C1 C14 178.395
C3 C14 C11 113.406 C3 C14 H15 109.144
H4 C3 H5 108.464 H4 C3 H6 108.777
H4 C3 C14 110.155 H5 C3 H6 108.296
H5 C3 C14 110.750 H6 C3 C14 110.338
C7 C11 H12 110.255 C7 C11 H13 109.651
C7 C11 C14 112.843 H8 C7 H9 107.900
H8 C7 H10 108.335 H8 C7 C11 110.823
H9 C7 H10 107.616 H9 C7 C11 110.180
H10 C7 C11 111.846 C11 C14 H15 108.704
H12 C11 H13 107.060 H12 C11 C14 108.474
H13 C11 C14 108.371
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability