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All results from a given calculation for CH2CHCONH2 (Acrylamide)

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-245.838507
Energy at 298.15K-245.844577
Nuclear repulsion energy162.425918
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 B3PW91/3-21G*
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 3692 3542 32.56      
2 A 3561 3417 41.41      
3 A 3267 3135 2.33      
4 A 3190 3060 11.53      
5 A 3169 3040 3.43      
6 A 1760 1688 141.42      
7 A 1697 1628 51.56      
8 A 1670 1603 84.35      
9 A 1469 1410 71.29      
10 A 1382 1326 50.41      
11 A 1321 1268 114.86      
12 A 1131 1086 4.75      
13 A 1070 1026 4.55      
14 A 1039 997 55.95      
15 A 1028 986 14.30      
16 A 860 825 75.11      
17 A 808 775 7.63      
18 A 655 629 69.98      
19 A 628 603 5.31      
20 A 521 500 206.65      
21 A 482 462 5.83      
22 A 469 450 41.58      
23 A 285 273 9.82      
24 A 146 140 6.61      

Unscaled Zero Point Vibrational Energy (zpe) 17650.0 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 16933.4 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 B3PW91/3-21G*
ABC
0.34999 0.14243 0.10123

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.791 -0.672 -0.000
C2 0.473 0.127 -0.000
N3 1.613 -0.629 -0.000
O4 0.484 1.368 -0.000
C5 -1.960 -0.036 0.000
H6 -0.724 -1.757 -0.001
H7 2.507 -0.152 0.000
H8 1.597 -1.640 0.001
H9 -1.963 1.052 0.000
H10 -2.911 -0.557 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 C5 H6 H7 H8 H9 H10
C11.49512.40472.40591.33061.08683.33892.57692.08442.1226
C21.49511.36771.24132.43792.23162.05332.09362.60583.4519
N32.40471.36772.29343.62172.59551.01291.01103.95144.5244
O42.40591.24132.29342.81843.35032.53023.20662.46823.9029
C51.33062.43793.62172.81842.11874.46833.90181.08711.0846
H61.08682.23162.59553.35032.11873.60782.32453.06952.4939
H73.33892.05331.01292.53024.46833.60781.74344.62975.4329
H82.57692.09361.01103.20663.90182.32451.74344.46314.6360
H92.08442.60583.95142.46821.08713.06954.62974.46311.8669
H102.12263.45194.52443.90291.08462.49395.43294.63601.8669

picture of Acrylamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 114.200 C1 C2 O4 122.825
C1 C5 H9 118.768 C1 C5 H10 122.684
C2 C1 C5 119.137 C2 C1 H6 118.759
C2 N3 H7 118.441 C2 N3 H8 122.611
N3 C2 O4 122.975 C5 C1 H6 122.104
H7 N3 H8 118.948 H9 C5 H10 118.548
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.297      
2 C 0.650      
3 N -0.801      
4 O -0.519      
5 C -0.374      
6 H 0.206      
7 H 0.338      
8 H 0.329      
9 H 0.250      
10 H 0.217      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.700 -3.477 0.002 3.546
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.132 -2.972 0.004
y -2.972 -29.496 -0.002
z 0.004 -0.002 -31.673
Traceless
 xyz
x 9.452 -2.972 0.004
y -2.972 -3.093 -0.002
z 0.004 -0.002 -6.359
Polar
3z2-r2-12.718
x2-y28.364
xy-2.972
xz0.004
yz-0.002


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


<r2> (average value of r2) Å2
<r2> 114.816
(<r2>)1/2 10.715