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All results from a given calculation for C4H9NO (Butanamide)

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-286.901251
Energy at 298.15K-286.911749
HF Energy-286.043382
Nuclear repulsion energy238.536265
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 3752 3538 39.70      
2 A 3617 3411 46.53      
3 A 3194 3012 39.95      
4 A 3192 3010 31.25      
5 A 3174 2993 0.76      
6 A 3134 2956 11.74      
7 A 3125 2947 15.80      
8 A 3100 2923 22.08      
9 A 3083 2907 11.20      
10 A 1815 1711 229.97      
11 A 1663 1568 107.84      
12 A 1571 1481 5.65      
13 A 1566 1476 7.22      
14 A 1556 1467 2.81      
15 A 1532 1445 5.78      
16 A 1474 1390 10.42      
17 A 1465 1382 60.26      
18 A 1399 1320 51.08      
19 A 1363 1286 13.34      
20 A 1299 1225 36.09      
21 A 1296 1222 15.21      
22 A 1174 1107 1.11      
23 A 1153 1087 1.57      
24 A 1113 1049 0.51      
25 A 1091 1029 2.98      
26 A 963 908 3.31      
27 A 917 865 0.85      
28 A 874 825 2.53      
29 A 772 728 7.55      
30 A 650 613 9.92      
31 A 626 590 29.44      
32 A 509 480 18.75      
33 A 436 411 1.99      
34 A 352 332 3.64      
35 A 316 298 259.95      
36 A 257 242 0.53      
37 A 188 178 8.96      
38 A 97 91 0.26      
39 A 23 22 3.64      

Unscaled Zero Point Vibrational Energy (zpe) 29440.3 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 27762.2 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 MP2/6-31G*
ABC
0.28786 0.06143 0.05246

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 -2.716 -0.199 0.027
H2 -2.868 -0.326 1.104
H3 -3.501 0.466 -0.346
H4 -2.851 -1.176 -0.447
C5 -1.335 0.372 -0.266
H6 -1.213 0.524 -1.344
H7 -1.215 1.354 0.200
C8 -0.219 -0.535 0.237
H9 -0.256 -1.509 -0.265
H10 -0.354 -0.726 1.311
N11 2.171 -0.777 -0.169
H12 3.114 -0.412 -0.168
H13 2.045 -1.775 -0.091
C14 1.149 0.105 0.057
O15 1.328 1.320 0.112

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 N11 H12 H13 C14 O15
C11.09461.09361.09471.52362.15942.16662.52912.80302.74024.92585.83755.01683.87724.3212
H21.09461.76871.76882.17113.07452.52372.79503.17722.55415.21686.11595.25934.17284.6150
H31.09361.76871.76842.16992.49692.51233.48073.79963.75105.80966.67525.98684.68114.9255
H41.09471.76881.76842.17482.52543.08162.79512.62323.08745.04626.02074.94564.23054.9001
C51.52362.17112.16992.17481.09581.09321.52342.16842.15753.69084.51814.00762.51852.8516
H62.15943.07452.49692.52541.09581.75332.14772.49313.05823.81204.58094.18002.77853.0355
H72.16662.52372.51233.08161.09321.75332.13543.05482.51044.01814.68954.52782.67712.5450
C82.52912.79503.48072.79511.52342.14772.13541.09701.09872.43633.35932.60191.52022.4181
H92.80303.17723.79962.62322.16842.49313.05481.09701.76212.53693.54542.32252.16393.2641
H102.74022.55413.75103.08742.15753.05822.51041.09871.76212.92713.78292.96952.12592.9074
N114.92585.21685.80965.04623.69083.81204.01812.43632.53692.92711.01111.00871.36962.2778
H125.83756.11596.67526.02074.51814.58094.68953.35933.54543.78291.01111.73442.04442.5029
H135.01685.25935.98684.94564.00764.18004.52782.60192.32252.96951.00871.73442.08813.1833
C143.87724.17284.68114.23052.51852.77852.67711.52022.16392.12591.36962.04442.08811.2291
O154.32124.61504.92554.90012.85163.03552.54502.41813.26412.90742.27782.50293.18331.2291

picture of Butanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.976 C1 C5 H7 110.705
C1 C5 C8 112.206 H2 C1 H3 107.860
H2 C1 H4 107.796 H2 C1 C5 110.981
H3 C1 H4 107.830 H3 C1 C5 110.944
H4 C1 C5 111.277 C5 C8 H9 110.633
C5 C8 H10 109.669 C5 C8 C14 111.677
H6 C5 H7 106.435 H6 C5 C8 109.069
H7 C5 C8 108.261 C8 C14 N11 114.831
C8 C14 O15 122.816 H9 C8 H10 106.744
H9 C8 C14 110.499 H10 C8 C14 107.442
N11 C14 O15 122.352 H12 N11 H13 118.346
H12 N11 C14 117.558 H13 N11 C14 122.070
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability