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All results from a given calculation for CH3CONH2 (Acetamide)

using model chemistry: HF/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 HF/TZVP
 hartrees
Energy at 0K-208.054761
Energy at 298.15K-208.060641
HF Energy-208.054761
Nuclear repulsion energy122.974212
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 HF/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 3967 3604 57.15      
2 A 3827 3477 56.00      
3 A 3285 2984 12.72      
4 A 3251 2954 22.08      
5 A 3188 2896 8.48      
6 A 1938 1761 504.94      
7 A 1775 1613 120.06      
8 A 1611 1463 10.64      
9 A 1592 1447 8.42      
10 A 1535 1395 69.21      
11 A 1446 1314 168.76      
12 A 1228 1115 0.97      
13 A 1158 1052 7.30      
14 A 1076 977 20.65      
15 A 904 821 1.32      
16 A 702 638 18.46      
17 A 600 545 19.69      
18 A 557 506 4.44      
19 A 463 421 4.31      
20 A 186 169 255.98      
21 A 44 40 6.61      

Unscaled Zero Point Vibrational Energy (zpe) 17165.0 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 15596.1 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 HF/TZVP
ABC
0.37240 0.31283 0.17550

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.353 -0.343 -0.001
C2 0.077 0.149 -0.009
N3 1.030 -0.813 -0.008
O4 0.348 1.312 0.001
H5 -1.949 0.312 -0.620
H6 -1.450 -1.363 -0.348
H7 -1.729 -0.282 1.015
H8 1.982 -0.536 0.042
H9 0.809 -1.777 0.014

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.51242.42882.37261.08021.08261.08433.34062.5943
C21.51241.35391.19352.12232.17592.12022.02472.0605
N32.42881.35392.23113.24222.56272.98950.99270.9895
O42.37261.19352.23112.58063.24192.80702.46663.1227
H51.08022.12233.24222.58061.76931.75284.07523.5171
H61.08262.17592.56273.24191.76931.76173.55152.3245
H71.08432.12022.98952.80701.75281.76173.84423.1103
H83.34062.02470.99272.46664.07523.55153.84421.7080
H92.59432.06050.98953.12273.51712.32453.11031.7080

picture of Acetamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 115.744 C1 C2 O4 122.084
C2 C1 H5 108.746 C2 C1 H6 112.919
C2 C1 H7 108.348 C2 N3 H8 118.466
C2 N3 H9 122.353 N3 C2 O4 122.165
H5 C1 H6 109.775 H5 C1 H7 108.156
H6 C1 H7 108.780 H8 N3 H9 119.009
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.280      
2 C 0.366      
3 N -0.445      
4 O -0.459      
5 H 0.121      
6 H 0.078      
7 H 0.120      
8 H 0.257      
9 H 0.241      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.361 -4.141 0.145 4.159
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.427 -2.273 0.188
y -2.273 -26.803 -0.182
z 0.188 -0.182 -25.017
Traceless
 xyz
x 5.483 -2.273 0.188
y -2.273 -4.081 -0.182
z 0.188 -0.182 -1.402
Polar
3z2-r2-2.805
x2-y26.376
xy-2.273
xz0.188
yz-0.182


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.866 -0.103 -0.015
y -0.103 5.394 -0.004
z -0.015 -0.004 3.551


<r2> (average value of r2) Å2
<r2> 74.165
(<r2>)1/2 8.612