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All results from a given calculation for CH2CHCONH2 (Acrylamide)

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-245.931224
Energy at 298.15K-245.937291
Nuclear repulsion energy162.240873
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 B3LYP/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 3661 3533 26.87      
2 A 3533 3409 33.91      
3 A 3259 3144 3.45      
4 A 3182 3070 12.08      
5 A 3165 3054 3.72      
6 A 1749 1688 128.64      
7 A 1691 1632 69.00      
8 A 1668 1609 67.89      
9 A 1476 1424 60.15      
10 A 1380 1332 35.03      
11 A 1316 1270 141.89      
12 A 1130 1091 5.78      
13 A 1070 1032 5.04      
14 A 1041 1004 47.13      
15 A 1026 990 12.65      
16 A 854 824 65.92      
17 A 801 773 7.90      
18 A 649 626 56.07      
19 A 628 606 5.56      
20 A 509 491 161.39      
21 A 481 464 5.99      
22 A 460 444 91.24      
23 A 288 278 9.36      
24 A 149 144 6.43      

Unscaled Zero Point Vibrational Energy (zpe) 17582.3 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 16965.2 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 B3LYP/3-21G
ABC
0.34959 0.14189 0.10092

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.794 -0.672 -0.000
C2 0.473 0.127 -0.000
N3 1.616 -0.630 -0.000
O4 0.486 1.369 -0.000
C5 -1.963 -0.036 0.000
H6 -0.725 -1.755 -0.000
H7 2.511 -0.153 0.000
H8 1.601 -1.641 0.001
H9 -1.969 1.050 0.000
H10 -2.913 -0.557 -0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 C5 H6 H7 H8 H9 H10
C11.49762.41052.40861.33061.08573.34502.58402.08402.1226
C21.49761.37101.24202.44172.23082.05662.09752.61063.4548
N32.41051.37102.29623.62822.59751.01361.01183.95924.5303
O42.40861.24202.29622.82363.35032.53283.21032.47573.9069
C51.33062.44173.62822.82362.11824.47523.90901.08601.0835
H61.08572.23082.59753.35032.11823.61042.32873.06822.4950
H73.34502.05661.01362.53284.47523.61041.74454.63825.4390
H82.58402.09751.01183.21033.90902.32871.74454.47084.6430
H92.08402.61063.95922.47571.08603.06824.63824.47081.8635
H102.12263.45484.53033.90691.08352.49505.43904.64301.8635

picture of Acrylamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 114.280 C1 C2 O4 122.811
C1 C5 H9 118.825 C1 C5 H10 122.778
C2 C1 C5 119.271 C2 C1 H6 118.571
C2 N3 H7 118.427 C2 N3 H8 122.642
N3 C2 O4 122.909 C5 C1 H6 122.158
H7 N3 H8 118.931 H9 C5 H10 118.397
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.261     -0.367
2 C 0.642     0.771
3 N -0.763     -0.943
4 O -0.513     -0.516
5 C -0.330     -0.256
6 H 0.178     0.178
7 H 0.319     0.413
8 H 0.311     0.399
9 H 0.224     0.159
10 H 0.193     0.163


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.684 -3.421 0.003 3.489
CHELPG        
AIM        
ESP 0.676 -3.420 0.003 3.486


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.488 -2.920 0.005
y -2.920 -29.712 -0.003
z 0.005 -0.003 -31.544
Traceless
 xyz
x 9.140 -2.920 0.005
y -2.920 -3.196 -0.003
z 0.005 -0.003 -5.945
Polar
3z2-r2-11.889
x2-y28.224
xy-2.920
xz0.005
yz-0.003


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.994 -0.800 -0.000
y -0.800 5.900 0.000
z -0.000 0.000 1.692


<r2> (average value of r2) Å2
<r2> 115.194
(<r2>)1/2 10.733