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All results from a given calculation for CH2CHCONH2 (Acrylamide)

using model chemistry: PBEPBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A
Energy calculated at PBEPBE/6-31+G**
 hartrees
Energy at 0K-247.022198
Energy at 298.15K-247.027626
Nuclear repulsion energy161.442947
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 PBEPBE/6-31+G**
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 3620 38.94      
2 A 3519 3478 38.05      
3 A 3194 3158 1.94      
4 A 3099 3064 9.49      
5 A 3086 3051 12.75      
6 A 1712 1692 254.74      
7 A 1643 1624 39.47      
8 A 1569 1552 116.85      
9 A 1391 1376 84.10      
10 A 1317 1302 45.47      
11 A 1247 1233 79.21      
12 A 1075 1062 1.69      
13 A 998 987 4.40      
14 A 976 965 41.82      
15 A 949 938 15.60      
16 A 796 787 5.26      
17 A 784 775 14.53      
18 A 599 592 2.08      
19 A 592 585 7.22      
20 A 451 446 4.84      
21 A 451 446 13.65      
22 A 264 261 7.45      
23 A 173 171 179.55      
24 A 113 112 29.25      

Unscaled Zero Point Vibrational Energy (zpe) 16829.6 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 16637.7 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 PBEPBE/6-31+G**
ABC
0.35087 0.13876 0.09944

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.803 -0.653 -0.000
C2 -0.477 0.127 -0.000
N3 -1.618 -0.643 0.000
O4 -0.522 1.364 -0.000
C5 1.992 -0.026 0.000
H6 0.747 -1.749 -0.001
H7 -2.518 -0.171 0.001
H8 -1.597 -1.658 0.001
H9 2.028 1.068 0.001
H10 2.934 -0.580 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 C5 H6 H7 H8 H9 H10
C11.49932.42112.41341.34431.09753.35572.60212.11242.1324
C21.49931.37641.23772.47412.24002.06212.10732.67583.4841
N32.42111.37642.28673.66252.61031.01641.01524.02734.5527
O42.41341.23772.28672.87293.36162.51723.20752.56683.9657
C51.34432.47413.66252.87292.12624.51223.94291.09491.0931
H61.09752.24002.61033.36162.12623.62602.34533.09502.4804
H73.35572.06211.01642.51724.51223.62601.74964.71105.4674
H82.60212.10731.01523.20753.94292.34531.74964.53554.6578
H92.11242.67584.02732.56681.09493.09504.71104.53551.8815
H102.13243.48414.55273.96571.09312.48045.46744.65781.8815

picture of Acrylamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 114.618 C1 C2 O4 123.436
C1 C5 H9 119.656 C1 C5 H10 121.726
C2 C1 C5 120.840 C2 C1 H6 118.401
C2 N3 H7 118.252 C2 N3 H8 122.846
N3 C2 O4 121.945 C5 C1 H6 120.759
H7 N3 H8 118.902 H9 C5 H10 118.618
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.204      
2 C 0.189      
3 N -0.524      
4 O -0.505      
5 C -0.462      
6 H 0.132      
7 H 0.324      
8 H 0.298      
9 H 0.189      
10 H 0.157      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.392 -3.675 0.004 3.696
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.286 3.200 -0.009
y 3.200 -30.942 -0.002
z -0.009 -0.002 -32.910
Traceless
 xyz
x 9.640 3.200 -0.009
y 3.200 -3.343 -0.002
z -0.009 -0.002 -6.296
Polar
3z2-r2-12.593
x2-y28.656
xy3.200
xz-0.009
yz-0.002


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.256 0.879 0.001
y 0.879 7.731 0.001
z 0.001 0.001 4.678


<r2> (average value of r2) Å2
<r2> 117.410
(<r2>)1/2 10.836