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All results from a given calculation for C4H9NO (Butanamide)

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-287.112412
Energy at 298.15K-287.123047
HF Energy-286.145801
Nuclear repulsion energy239.256652
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/TZVP
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 3761 3565 37.79      
2 A 3618 3429 42.44      
3 A 3173 3008 44.39      
4 A 3171 3006 30.95      
5 A 3152 2988 0.61      
6 A 3135 2972 10.66      
7 A 3097 2936 27.46      
8 A 3081 2921 10.87      
9 A 3077 2917 23.05      
10 A 1779 1686 277.23      
11 A 1638 1552 92.47      
12 A 1528 1448 6.72      
13 A 1524 1445 7.45      
14 A 1512 1434 2.56      
15 A 1492 1414 11.01      
16 A 1438 1363 6.38      
17 A 1430 1355 54.73      
18 A 1383 1311 43.95      
19 A 1342 1272 25.33      
20 A 1288 1221 38.11      
21 A 1274 1208 15.26      
22 A 1159 1098 0.91      
23 A 1140 1081 3.91      
24 A 1087 1030 1.43      
25 A 1076 1020 9.01      
26 A 943 894 2.60      
27 A 901 854 0.80      
28 A 880 834 1.59      
29 A 761 721 2.54      
30 A 696 660 5.29      
31 A 615 583 33.15      
32 A 529 501 15.21      
33 A 437 415 12.24      
34 A 385 365 205.08      
35 A 342 325 1.98      
36 A 249 236 0.05      
37 A 190 180 6.93      
38 A 99 94 1.30      
39 A 34 32 4.33      

Unscaled Zero Point Vibrational Energy (zpe) 29207.7 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 27686.0 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/TZVP
ABC
0.27660 0.06186 0.05401

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.693 -0.036 0.011
H2 2.872 -1.112 0.020
H3 3.411 0.428 -0.664
H4 2.862 0.351 1.016
C5 1.257 0.261 -0.432
H6 1.092 1.337 -0.451
H7 1.100 -0.129 -1.439
C8 0.234 -0.396 0.510
H9 0.390 0.001 1.517
H10 0.399 -1.471 0.530
N11 -1.561 1.179 -0.016
H12 -2.541 1.213 -0.282
H13 -1.436 1.686 0.857
C14 -1.166 -0.157 0.080
O15 -1.916 -1.074 -0.250

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 N11 H12 H13 C14 O15
C11.09031.08931.09021.53222.15912.15602.53482.75172.75554.42435.38944.55343.86184.7315
H21.09031.76901.76982.16783.06372.49712.77753.10492.55134.99035.89965.20524.15054.7961
H31.08931.76901.76852.17282.49952.50003.48573.75003.75605.06976.01595.23354.67405.5501
H41.09021.76981.76852.16412.50153.05982.77902.54653.10294.61715.62404.50414.16725.1445
C51.53222.16782.17282.16411.08821.09101.53832.14932.15982.99263.91863.30862.51183.4471
H62.15913.06372.49952.50151.08821.76742.15912.47993.05422.69303.63942.86802.75913.8598
H72.15602.49712.50003.05981.09101.76742.14993.04342.48473.28904.04993.87322.72893.3774
C82.53482.77753.48572.77901.53832.15912.14991.09391.08822.44513.30442.69171.48422.3788
H92.75173.10493.75002.54652.14932.47993.04341.09391.77282.74733.64742.57152.12483.0979
H102.75552.55133.75603.10292.15983.05422.48471.08821.77283.34104.06333.66672.09272.4746
N114.42434.99035.06974.61712.99262.69303.28902.44512.74733.34101.01641.01781.39632.2923
H125.38945.89966.01595.62403.91863.63944.04993.30443.64744.06331.01641.65631.97472.3711
H134.55345.20525.23354.50413.30862.86803.87322.69172.57153.66671.01781.65632.01863.0121
C143.86184.15054.67404.16722.51182.75912.72891.48422.12482.09271.39631.97472.01861.2292
O154.73154.79615.55015.14453.44713.85983.37742.37883.09792.47462.29232.37113.01211.2292

picture of Butanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.810 C1 C5 H7 109.398
C1 C5 C8 111.288 H2 C1 H3 108.507
H2 C1 H4 108.514 H2 C1 C5 110.372
H3 C1 H4 108.468 H3 C1 C5 110.832
H4 C1 C5 110.084 C5 C8 H9 108.297
C5 C8 H10 109.436 C5 C8 C14 112.399
H6 C5 H7 108.397 H6 C5 C8 109.382
H7 C5 C8 108.507 C8 C14 N11 116.145
C8 C14 O15 122.210 H9 C8 H10 108.664
H9 C8 C14 110.090 H10 C8 C14 107.892
N11 C14 O15 121.512 H12 N11 H13 109.025
H12 N11 C14 108.845 H13 N11 C14 112.533
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability