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All results from a given calculation for CH3CONH2 (Acetamide)

using model chemistry: BLYP/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 BLYP/6-31G*
 hartrees
Energy at 0K-209.138289
Energy at 298.15K-209.143940
HF Energy-209.138289
Nuclear repulsion energy120.117958
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 BLYP/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 3592 3563 14.46      
2 A 3467 3439 12.89      
3 A 3063 3038 13.55      
4 A 3051 3026 19.47      
5 A 2985 2960 10.40      
6 A 1735 1721 262.46      
7 A 1598 1585 72.81      
8 A 1481 1469 6.05      
9 A 1467 1455 4.98      
10 A 1384 1372 24.23      
11 A 1304 1294 138.37      
12 A 1101 1092 0.11      
13 A 1035 1027 6.13      
14 A 958 950 8.30      
15 A 809 803 3.87      
16 A 652 646 17.16      
17 A 525 521 14.80      
18 A 500 496 9.73      
19 A 416 413 4.12      
20 A 218 216 219.37      
21 A 51 50 4.61      

Unscaled Zero Point Vibrational Energy (zpe) 15696.3 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 15569.2 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 BLYP/6-31G*
ABC
0.35217 0.30162 0.16773

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.390 -0.292 0.000
C2 0.084 0.158 0.000
N3 0.998 -0.884 -0.031
O4 0.428 1.338 0.004
H5 -2.029 0.597 -0.061
H6 -1.609 -0.954 -0.855
H7 -1.636 -0.849 0.921
H8 1.984 -0.652 0.067
H9 0.723 -1.854 0.104

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7 H8 H9
C11.54102.46032.44191.09661.10341.10373.39372.6299
C21.54101.38661.22922.15872.19862.19512.06662.1138
N32.46031.38662.29443.36992.73482.80061.01791.0169
O42.44191.22922.29442.56713.18473.14372.52663.2072
H51.09662.15873.36992.56711.79281.79124.20463.6891
H61.10342.19862.73483.18471.79281.77903.72162.6774
H71.10372.19512.80063.14371.79121.77903.72442.6912
H83.39372.06661.01792.52664.20463.72163.72441.7425
H92.62992.11381.01693.20723.68912.67742.69121.7425

picture of Acetamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 114.258 C1 C2 O4 123.252
C2 C1 H5 108.683 C2 C1 H6 111.421
C2 C1 H7 111.123 C2 N3 H8 117.697
C2 N3 H9 122.403 N3 C2 O4 122.479
H5 C1 H6 109.152 H5 C1 H7 108.992
H6 C1 H7 107.424 H8 N3 H9 117.812
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.487      
2 C 0.536      
3 N -0.674      
4 O -0.464      
5 H 0.172      
6 H 0.126      
7 H 0.168      
8 H 0.315      
9 H 0.308      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.057 -3.525 0.455 3.555
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.331 -2.329 0.597
y -2.329 -25.456 -0.696
z 0.597 -0.696 -24.548
Traceless
 xyz
x 4.672 -2.329 0.597
y -2.329 -3.017 -0.696
z 0.597 -0.696 -1.655
Polar
3z2-r2-3.309
x2-y25.126
xy-2.329
xz0.597
yz-0.696


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.364 -0.242 0.010
y -0.242 5.564 -0.014
z 0.010 -0.014 2.971


<r2> (average value of r2) Å2
<r2> 76.465
(<r2>)1/2 8.744