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All results from a given calculation for CH2CHCONH2 (Acrylamide)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-244.450268
Energy at 298.15K-244.456623
Nuclear repulsion energy164.076943
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/3-21G*
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 3912 3531 51.70      
2 A 3785 3416 60.61      
3 A 3421 3088 2.84      
4 A 3362 3034 10.06      
5 A 3332 3008 5.32      
6 A 1905 1720 213.94      
7 A 1836 1658 63.31      
8 A 1813 1637 129.30      
9 A 1595 1439 76.05      
10 A 1485 1340 39.76      
11 A 1417 1279 231.09      
12 A 1230 1110 9.12      
13 A 1197 1080 17.22      
14 A 1167 1053 11.48      
15 A 1142 1031 72.33      
16 A 951 858 126.46      
17 A 861 777 7.03      
18 A 701 632 147.32      
19 A 684 617 11.46      
20 A 572 516 185.76      
21 A 522 471 6.81      
22 A 505 455 35.58      
23 A 313 282 10.80      
24 A 141 127 7.10      

Unscaled Zero Point Vibrational Energy (zpe) 18923.3 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 17080.1 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/3-21G*
ABC
0.36167 0.14368 0.10283

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.793 -0.660 -0.000
C2 0.472 0.125 -0.000
N3 1.604 -0.621 0.000
O4 0.488 1.344 -0.000
C5 -1.949 -0.032 0.000
H6 -0.727 -1.730 -0.001
H7 2.484 -0.151 -0.000
H8 1.595 -1.615 0.001
H9 -1.976 1.040 0.000
H10 -2.885 -0.556 -0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 C5 H6 H7 H8 H9 H10
C11.48922.39792.37841.31511.07243.31652.57232.07052.0938
C21.48921.35561.21932.42672.20872.03062.07092.61353.4253
N32.39791.35562.26023.60192.58120.99710.99433.94664.4893
O42.37841.21932.26022.79893.30532.49453.15982.48223.8708
C51.31512.42673.60192.79892.09214.43483.88151.07271.0719
H61.07242.20872.58123.30532.09213.57762.32433.03862.4567
H73.31652.03060.99712.49454.43483.57761.71264.61625.3838
H82.57232.07090.99433.15983.88152.32431.71264.44974.6030
H92.07052.61353.94662.48221.07273.03864.61624.44971.8366
H102.09383.42534.48933.87081.07192.45675.38384.60301.8366

picture of Acrylamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 114.817 C1 C2 O4 122.521
C1 C5 H9 119.910 C1 C5 H10 122.269
C2 C1 C5 119.712 C2 C1 H6 118.227
C2 N3 H7 118.532 C2 N3 H8 122.842
N3 C2 O4 122.661 C5 C1 H6 122.061
H7 N3 H8 118.625 H9 C5 H10 117.821
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.371 -0.435    
2 C 0.871 1.054    
3 N -0.945 -1.138    
4 O -0.650 -0.671    
5 C -0.347 -0.206    
6 H 0.230 0.182    
7 H 0.363 0.456    
8 H 0.352 0.438    
9 H 0.268 0.162    
10 H 0.228 0.157    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.112 -3.739 0.001 3.740
CHELPG 0.088 -3.751 0.001 3.752
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.476 -3.085 0.002
y -3.085 -30.794 -0.001
z 0.002 -0.001 -31.982
Traceless
 xyz
x 9.912 -3.085 0.002
y -3.085 -4.065 -0.001
z 0.002 -0.001 -5.847
Polar
3z2-r2-11.694
x2-y29.318
xy-3.085
xz0.002
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.268 -0.816 -0.000
y -0.816 5.560 0.000
z -0.000 0.000 1.584


<r2> (average value of r2) Å2
<r2> 113.719
(<r2>)1/2 10.664