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All results from a given calculation for C4H9NO (Butanamide)

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-286.536931
Energy at 298.15K-286.547511
HF Energy-285.959667
Nuclear repulsion energy233.747099
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/LANL2DZ
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 3755 3617 33.69      
2 A 3597 3464 50.84      
3 A 3126 3011 78.15      
4 A 3121 3006 47.79      
5 A 3103 2988 2.02      
6 A 3088 2974 15.08      
7 A 3043 2930 34.05      
8 A 3030 2918 20.54      
9 A 3014 2903 37.04      
10 A 1697 1634 194.68      
11 A 1635 1575 131.57      
12 A 1544 1487 9.84      
13 A 1542 1485 8.82      
14 A 1533 1477 2.71      
15 A 1513 1457 9.16      
16 A 1459 1405 3.60      
17 A 1427 1375 38.32      
18 A 1382 1331 77.34      
19 A 1343 1294 4.27      
20 A 1316 1268 80.58      
21 A 1284 1237 23.79      
22 A 1166 1123 5.80      
23 A 1136 1094 7.15      
24 A 1078 1038 8.30      
25 A 1061 1022 1.42      
26 A 925 891 3.31      
27 A 913 879 2.94      
28 A 858 826 0.35      
29 A 772 743 7.18      
30 A 684 659 44.53      
31 A 603 581 70.99      
32 A 531 511 53.86      
33 A 466 449 206.95      
34 A 421 405 3.86      
35 A 333 320 2.02      
36 A 232 223 0.10      
37 A 185 178 5.95      
38 A 90 87 2.19      
39 A 37 36 5.53      

Unscaled Zero Point Vibrational Energy (zpe) 29019.5 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 27948.7 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/LANL2DZ
ABC
0.26307 0.05900 0.05140

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.773 -0.174 0.008
H2 -2.965 -0.018 1.086
H3 -3.545 0.375 -0.561
H4 -2.888 -1.253 -0.210
C5 -1.345 0.323 -0.375
H6 -1.175 0.179 -1.460
H7 -1.242 1.402 -0.166
C8 -0.235 -0.443 0.417
H9 -0.291 -1.526 0.195
H10 -0.409 -0.311 1.503
N11 2.139 -0.862 -0.209
H12 3.087 -0.558 -0.413
H13 1.926 -1.853 -0.218
C14 1.173 0.101 0.096
O15 1.451 1.345 0.104

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 N11 H12 H13 C14 O15
C11.10601.10491.10621.55992.19812.20442.58462.83232.80054.96475.88804.99483.95654.4896
H21.10601.79001.79122.20783.11802.55982.84203.19612.60605.33246.25815.38344.25604.7241
H31.10491.79001.78962.20862.54172.55263.54673.84333.81645.82766.69925.91684.77115.1323
H41.10621.79121.78962.21162.55863.12422.84392.64253.15715.04236.01924.85124.29175.0666
C51.55992.20782.20862.21161.10761.10441.56352.20302.19173.68364.51903.93132.57093.0148
H62.19813.11802.54172.55861.10761.78192.18962.53553.09953.69284.45123.91042.81803.2714
H72.20442.55982.55263.12421.10441.78192.18113.10002.53244.06944.75904.54252.75552.7069
C82.58462.84203.54672.84391.56352.18962.18111.10751.10752.49083.42652.65741.54332.4768
H92.83233.19613.84332.64252.20302.53553.10001.10751.78952.55143.56662.27852.19123.3592
H102.80052.60603.81643.15712.19173.09952.53241.10751.78953.11853.99433.28482.15682.8557
N114.96475.33245.82765.04233.68363.69284.06942.49082.55143.11851.01661.01371.39782.3326
H125.88806.25816.69926.01924.51904.45124.75903.42653.56663.99431.01661.75052.08772.5625
H134.99485.38345.91684.85123.93133.91044.54252.65742.27853.28481.01371.75052.11763.2488
C143.95654.25604.77114.29172.57092.81802.75551.54332.19122.15681.39782.08772.11761.2741
O154.48964.72415.13235.06663.01483.27142.70692.47683.35922.85572.33262.56253.24881.2741

picture of Butanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.823 C1 C5 H7 110.499
C1 C5 C8 111.687 H2 C1 H3 108.118
H2 C1 H4 108.126 H2 C1 C5 110.668
H3 C1 H4 108.070 H3 C1 C5 110.793
H4 C1 C5 110.955 C5 C8 H9 109.960
C5 C8 H10 109.091 C5 C8 C14 111.689
H6 C5 H7 107.335 H6 C5 C8 108.928
H7 C5 C8 108.452 C8 C14 N11 115.666
C8 C14 O15 122.785 H9 C8 H10 107.780
H9 C8 C14 110.431 H10 C8 C14 107.776
N11 C14 O15 121.549 H12 N11 H13 119.124
H12 N11 C14 118.848 H13 N11 C14 122.021
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability