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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-244.456634
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 3542 51.70      
2 A 3785 3427 60.61      
3 A 3421 3098 2.84      
4 A 3362 3044 10.06      
5 A 3332 3018 5.32      
6 A 1905 1726 213.94      
7 A 1836 1663 63.31      
8 A 1813 1642 129.30      
9 A 1595 1444 76.05      
10 A 1485 1345 39.76      
11 A 1417 1283 231.09      
12 A 1230 1113 9.12      
13 A 1197 1084 17.22      
14 A 1167 1057 11.48      
15 A 1142 1034 72.33      
16 A 951 861 126.46      
17 A 861 780 7.03      
18 A 701 635 147.32      
19 A 684 619 11.46      
20 A 572 518 185.76      
21 A 522 473 6.81      
22 A 505 457 35.58      
23 A 313 283 10.80      
24 A 141 128 7.10      

Unscaled Zero Point Vibrational Energy (zpe) 18923.3 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 17136.9 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   -0.481
2 C 0.871 1.054   1.034
3 N -0.945 -1.138   -1.127
4 O -0.650 -0.671   -0.652
5 C -0.347 -0.206   -0.232
6 H 0.230 0.182   0.211
7 H 0.363 0.456   0.456
8 H 0.352 0.438   0.438
9 H 0.268 0.162   0.177
10 H 0.228 0.157   0.175


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 0.104 -3.735 0.001 3.737


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