return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H7NO (Methacrylamide)

using model chemistry: B3LYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/6-31G*
 hartrees
Energy at 0K-286.609790
Energy at 298.15K-286.617704
Nuclear repulsion energy228.074067
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/6-31G*
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 3703 3556 26.05      
2 A 3581 3439 28.56      
3 A 3244 3115 12.64      
4 A 3166 3041 6.83      
5 A 3144 3019 13.69      
6 A 3113 2990 13.95      
7 A 3054 2933 16.73      
8 A 1787 1716 248.08      
9 A 1715 1647 30.41      
10 A 1640 1575 99.40      
11 A 1522 1462 15.29      
12 A 1502 1442 7.89      
13 A 1468 1410 11.93      
14 A 1438 1381 3.09      
15 A 1392 1337 87.78      
16 A 1246 1196 50.63      
17 A 1108 1064 4.77      
18 A 1086 1042 0.69      
19 A 1034 993 5.16      
20 A 962 924 6.81      
21 A 951 913 33.15      
22 A 824 791 17.81      
23 A 750 720 5.71      
24 A 680 653 15.90      
25 A 578 556 25.93      
26 A 563 541 11.21      
27 A 510 490 6.59      
28 A 403 387 177.40      
29 A 373 358 25.78      
30 A 326 313 4.14      
31 A 267 256 11.19      
32 A 168 161 0.22      
33 A 74 71 4.00      

Unscaled Zero Point Vibrational Energy (zpe) 23686.0 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 22745.7 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 B3LYP/6-31G*
ABC
0.17368 0.11203 0.07208

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.682 0.749 0.235
H2 -2.636 0.424 0.320
H3 -1.425 1.558 0.780
C4 1.678 -0.905 0.249
H5 1.523 -1.351 1.239
H6 1.527 -1.708 -0.479
H7 2.710 -0.547 0.185
C8 1.062 1.472 -0.258
H9 0.341 2.246 -0.503
H10 2.108 1.767 -0.267
C11 -0.746 -0.222 -0.039
O12 -1.066 -1.369 -0.325
C13 0.698 0.209 -0.005

Atom - Atom Distances (Å)
  N1 H2 H3 C4 H5 H6 H7 C8 H9 H10 C11 O12 C13
N11.01151.00943.74513.96074.10404.57952.88032.62273.95671.37562.27552.4521
H21.01151.72194.51504.61434.74515.43543.88723.58614.96582.02922.46943.3567
H31.00941.72193.99744.16704.57924.67832.69622.28833.69112.07373.14962.6352
C43.74514.51503.99741.09711.09471.09372.50723.50492.75492.53552.84161.5052
H53.96074.61434.16701.09711.75501.77943.22844.16803.51182.83883.02452.1590
H64.10404.74514.57921.09471.75501.78543.22174.12883.52992.75152.61922.1415
H74.57955.43544.67831.09371.77941.78542.64403.72732.43383.47893.89762.1580
C82.88033.88722.69622.50723.22843.22172.64401.08631.08712.48753.55041.3391
H92.62273.58612.28833.50494.16804.12883.72731.08631.84662.73653.88362.1279
H103.95674.96583.69112.75493.51183.52992.43381.08711.84663.48664.46252.1182
C111.37562.02922.07372.53552.83882.75153.47892.48752.73653.48661.22481.5073
O122.27552.46943.14962.84163.02452.61923.89763.55043.88364.46251.22482.3878
C132.45213.35672.63521.50522.15902.14152.15801.33912.12792.11821.50732.3878

picture of Methacrylamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 H11 H12 122.001 C1 H11 H13 116.474
C2 C1 C3 116.870 C2 C1 H11 115.602
C3 C1 H11 120.020 C4 H13 H8 123.547
C4 H13 H11 114.630 O5 C4 N6 106.389
O5 C4 H7 108.629 O5 C4 H13 111.151
N6 C4 H7 109.343 N6 C4 H13 109.907
H7 C4 H13 111.283 H8 H13 H11 121.722
H9 H8 H10 116.356 H9 H8 H13 122.308
H10 H8 H13 121.291 H12 H11 H13 121.507
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.747 -0.870 -1.200 -0.873
2 H 0.339 0.390 0.423 0.392
3 H 0.332 0.356 0.411 0.363
4 C -0.503 -0.137 -0.011 -0.293
5 H 0.163 0.043 0.028 0.083
6 H 0.189 0.063 0.048 0.105
7 H 0.146 0.057 0.015 0.100
8 C -0.392 -0.390 -0.097 -0.464
9 H 0.148 0.147 0.042 0.171
10 H 0.149 0.159 0.046 0.185
11 C 0.534 0.668 1.494 0.644
12 O -0.497 -0.522 -1.201 -0.510
13 C 0.140 0.036 -0.011 0.096


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.288 2.894 1.557 3.299
CHELPG 0.325 2.917 1.557 3.323
AIM -1.023 -1.032 -0.345 1.494
ESP 0.335 2.892 1.566 3.306


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.089 -4.045 -2.581
y -4.045 -37.032 0.141
z -2.581 0.141 -36.539
Traceless
 xyz
x 5.696 -4.045 -2.581
y -4.045 -3.217 0.141
z -2.581 0.141 -2.479
Polar
3z2-r2-4.958
x2-y25.942
xy-4.045
xz-2.581
yz0.141


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.350 0.416 -0.176
y 0.416 9.462 -0.161
z -0.176 -0.161 4.321


<r2> (average value of r2) Å2
<r2> 164.203
(<r2>)1/2 12.814