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 CH3CH2CH2CN (Butanenitrile)

using model chemistry: MP2=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-210.879480
Energy at 298.15K-210.886886
HF Energy-210.017689
Nuclear repulsion energy154.595644
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=FULL/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' 3216 3023 13.26      
2 A' 3136 2947 14.32      
3 A' 3121 2934 0.22      
4 A' 3117 2929 12.05      
5 A' 2240 2105 0.07      
6 A' 1549 1456 5.53      
7 A' 1532 1440 1.73      
8 A' 1505 1414 3.04      
9 A' 1444 1357 2.64      
10 A' 1410 1325 2.12      
11 A' 1321 1242 1.47      
12 A' 1144 1076 3.18      
13 A' 1096 1030 0.08      
14 A' 988 929 1.54      
15 A' 907 852 1.83      
16 A' 548 515 0.80      
17 A' 355 334 0.14      
18 A' 170 160 5.87      
19 A" 3214 3020 23.07      
20 A" 3192 3000 1.18      
21 A" 3172 2982 0.00      
22 A" 1545 1452 7.89      
23 A" 1363 1281 0.00      
24 A" 1291 1214 0.01      
25 A" 1154 1085 0.28      
26 A" 893 839 0.15      
27 A" 760 714 4.15      
28 A" 423 398 0.67      
29 A" 261 245 0.02      
30 A" 107 101 4.08      

Unscaled Zero Point Vibrational Energy (zpe) 23085.9 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 21698.4 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=FULL/6-31G(2df,p)
ABC
0.79904 0.07621 0.07236

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -2.606 0.338 0.000
C2 -1.445 0.479 0.000
C3 0.000 0.633 0.000
C4 0.719 -0.716 0.000
C5 2.227 -0.528 0.000
H6 0.289 1.214 0.877
H7 0.289 1.214 -0.877
H8 0.406 -1.285 0.875
H9 0.406 -1.285 -0.875
H10 2.740 -1.488 0.000
H11 2.552 0.024 0.881
H12 2.552 0.024 -0.881

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.16912.62223.48754.90963.14873.14873.53133.53135.64855.24215.2421
C21.16911.45322.47183.80762.07752.07752.70262.70264.62394.11854.1185
C32.62221.45321.52852.51161.09111.09112.14722.14723.46492.76802.7680
C43.48752.47181.52851.51962.16282.16281.09001.09002.16332.16452.1645
C54.90963.80762.51161.51962.74972.74972.15752.15751.08831.08951.0895
H63.14872.07751.09112.16282.74971.75502.50153.05453.75192.55723.1034
H73.14872.07751.09112.16282.74971.75503.05452.50153.75193.10342.5572
H83.53132.70262.14721.09002.15752.50153.05451.75062.50052.51413.0668
H93.53132.70262.14721.09002.15753.05452.50151.75062.50053.06682.5141
H105.64854.62393.46492.16331.08833.75193.75192.50052.50051.76031.7603
H115.24214.11852.76802.16451.08952.55723.10342.51413.06681.76031.7620
H125.24214.11852.76802.16451.08953.10342.55723.06682.51411.76031.7620

picture of Butanenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 179.168 C2 C3 C4 111.968
C2 C3 H6 108.642 C2 C3 H7 108.642
C3 C4 C5 110.971 C3 C4 H8 109.021
C3 C4 H9 109.021 C4 C3 H6 110.189
C4 C3 H7 110.189 C4 C5 H10 111.010
C4 C5 H11 111.036 C4 C5 H12 111.036
C5 C4 H8 110.445 C5 C4 H9 110.445
H6 C3 H7 107.068 H8 C4 H9 106.833
H10 C5 H11 107.849 H10 C5 H12 107.849
H11 C5 H12 107.917
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability