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*

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*
 hartrees
Energy at 0K-210.692441
Energy at 298.15K-210.699742
HF Energy-209.992423
Nuclear repulsion energy153.747358
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*
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' 3202 3017 19.73      
2 A' 3124 2943 19.27      
3 A' 3109 2929 1.14      
4 A' 3107 2927 15.26      
5 A' 2223 2095 0.08      
6 A' 1571 1480 6.88      
7 A' 1558 1468 1.58      
8 A' 1536 1448 3.15      
9 A' 1476 1391 3.27      
10 A' 1437 1354 2.05      
11 A' 1344 1266 0.91      
12 A' 1154 1088 3.44      
13 A' 1097 1034 0.05      
14 A' 986 929 1.84      
15 A' 909 856 2.04      
16 A' 525 495 0.85      
17 A' 354 333 0.04      
18 A' 164 155 5.85      
19 A" 3198 3013 36.03      
20 A" 3176 2992 2.83      
21 A" 3157 2974 0.11      
22 A" 1565 1474 8.92      
23 A" 1369 1290 0.02      
24 A" 1304 1229 0.06      
25 A" 1168 1100 0.21      
26 A" 905 853 0.16      
27 A" 766 722 3.96      
28 A" 376 354 0.46      
29 A" 253 239 0.01      
30 A" 102 96 4.00      

Unscaled Zero Point Vibrational Energy (zpe) 23107.7 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 21772.0 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 MP2=FULL/6-31G*
ABC
0.79476 0.07521 0.07144

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -2.626 0.334 0.000
C2 -1.455 0.479 0.000
C3 0.000 0.635 0.000
C4 0.728 -0.714 0.000
C5 2.241 -0.528 0.000
H6 0.288 1.220 0.880
H7 0.288 1.220 -0.880
H8 0.417 -1.287 0.878
H9 0.417 -1.287 -0.878
H10 2.752 -1.493 0.000
H11 2.568 0.026 0.885
H12 2.568 0.026 -0.885

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.17952.64313.51414.94213.17073.17073.55793.55795.67985.27805.2780
C21.17951.46372.48833.83062.08912.08912.71992.71994.64684.14474.1447
C32.64311.46371.53282.52431.09561.09562.15422.15423.47892.78392.7839
C43.51412.48831.53281.52362.16982.16981.09441.09442.16852.17132.1713
C54.94213.83062.52431.52362.76412.76412.16202.16201.09271.09381.0938
H63.17072.08911.09562.16982.76411.76022.51083.06543.76912.57383.1208
H73.17072.08911.09562.16982.76411.76023.06542.51083.76913.12082.5738
H83.55792.71992.15421.09442.16202.51083.06541.75692.50332.52043.0759
H93.55792.71992.15421.09442.16203.06542.51081.75692.50333.07592.5204
H105.67984.64683.47892.16851.09273.76913.76912.50332.50331.76751.7675
H115.27804.14472.78392.17131.09382.57383.12082.52043.07591.76751.7696
H125.27804.14472.78392.17131.09383.12082.57383.07592.52041.76751.7696

picture of Butanenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 179.036 C2 C3 C4 112.264
C2 C3 H6 108.579 C2 C3 H7 108.579
C3 C4 C5 111.360 C3 C4 H8 109.022
C3 C4 H9 109.022 C4 C3 H6 110.174
C4 C3 H7 110.174 C4 C5 H10 110.891
C4 C5 H11 111.047 C4 C5 H12 111.047
C5 C4 H8 110.271 C5 C4 H9 110.271
H6 C3 H7 106.904 H8 C4 H9 106.772
H10 C5 H11 107.869 H10 C5 H12 107.869
H11 C5 H12 107.978
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability