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All results from a given calculation for CH3CONH2 (Acetamide)

using model chemistry: CCSD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at CCSD/aug-cc-pVTZ
 hartrees
Energy at 0K-208.873350
Energy at 298.15K 
HF Energy-208.063678
Nuclear repulsion energy121.898907
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 CCSD/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD/aug-cc-pVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.367 -0.301 0.000
C2 0.078 0.155 0.001
N3 0.995 -0.860 -0.032
O4 0.404 1.322 0.004
H5 -2.009 0.572 -0.058
H6 -1.561 -0.958 -0.849
H7 -1.588 -0.856 0.913
H8 1.965 -0.620 0.071
H9 0.724 -1.814 0.105

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.51542.42732.40201.08551.09101.09123.34732.5829
C21.51541.36791.21162.12972.15642.15202.04032.0748
N32.42731.36792.26063.32832.68622.75071.00401.0016
O42.40201.21162.26062.52803.12853.08842.49193.1540
H51.08552.12973.32832.52801.77931.77724.15073.6318
H61.09102.15642.68623.12851.77931.76573.65992.6207
H71.09122.15202.75073.08841.77721.76573.65902.6301
H83.34732.04031.00402.49194.15073.65993.65901.7227
H92.58292.07481.00163.15403.63182.62072.63011.7227

picture of Acetamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 114.578 C1 C2 O4 123.104
C2 C1 H5 108.820 C2 C1 H6 110.602
C2 C1 H7 110.242 C2 N3 H8 117.857
C2 N3 H9 121.468 N3 C2 O4 122.303
H5 C1 H6 109.670 H5 C1 H7 109.469
H6 C1 H7 108.023 H8 N3 H9 118.401
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability