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 C4H9NO (Propanamide, 2-methyl-)

using model chemistry: B3LYP/STO-3G

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/STO-3G
 hartrees
Energy at 0K-284.152283
Energy at 298.15K-284.162213
Nuclear repulsion energy241.037731
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/STO-3G
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 3788 3381 0.04      
2 A 3580 3195 1.90      
3 A 3486 3111 1.38      
4 A 3484 3109 0.76      
5 A 3482 3107 1.64      
6 A 3477 3103 1.51      
7 A 3351 2991 4.80      
8 A 3313 2957 2.38      
9 A 3310 2954 2.41      
10 A 1866 1665 59.28      
11 A 1763 1573 13.98      
12 A 1690 1508 5.36      
13 A 1685 1504 3.87      
14 A 1679 1498 1.30      
15 A 1677 1496 1.69      
16 A 1577 1407 1.67      
17 A 1561 1393 0.24      
18 A 1470 1312 2.20      
19 A 1449 1293 6.38      
20 A 1314 1172 61.20      
21 A 1282 1144 33.90      
22 A 1225 1093 1.08      
23 A 1185 1057 19.40      
24 A 1125 1004 15.55      
25 A 1054 941 1.00      
26 A 1018 908 2.31      
27 A 971 867 2.38      
28 A 781 697 14.34      
29 A 688 614 40.10      
30 A 627 559 102.46      
31 A 541 483 80.77      
32 A 464 414 13.50      
33 A 400 357 35.09      
34 A 336 300 7.32      
35 A 281 251 4.55      
36 A 227 203 0.49      
37 A 212 189 0.24      
38 A 174 155 0.78      
39 A 44 39 2.08      

Unscaled Zero Point Vibrational Energy (zpe) 30817.5 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 27501.6 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/STO-3G
ABC
0.15292 0.09512 0.07053

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.632 -0.994 -0.373
H2 -1.336 -1.744 -1.122
H3 -1.614 -1.471 0.619
H4 -2.660 -0.666 -0.590
C5 -1.130 1.357 0.566
H6 -0.418 2.196 0.552
H7 -1.204 0.980 1.597
C8 -0.656 0.221 -0.397
H9 -0.613 0.630 -1.425
N10 1.817 0.737 -0.332
H11 2.780 0.318 -0.333
H12 1.639 1.218 -1.247
C13 0.799 -0.252 0.007
O14 1.067 -1.293 0.650
H15 -2.120 1.729 0.259

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 N10 H11 H12 C13 O14 H15
C11.10061.10041.10072.58063.53632.82151.55782.18683.85924.60274.04452.56962.90132.8368
H21.10061.78311.78773.53684.37873.85142.20182.50074.08994.67114.20092.83913.01953.8182
H31.10041.78311.78992.87003.85822.67132.19363.09744.18984.83874.61502.77182.68693.2594
H41.10071.78771.78992.78743.81093.10062.19922.56224.69885.53374.73953.53423.97732.5970
C52.58063.53682.87002.78741.10071.10061.56342.18163.14284.14413.31302.57353.44351.1013
H63.53634.37873.85823.81091.10071.78602.20502.52972.81193.81252.90282.78793.79361.7897
H72.82153.85142.67133.10061.10061.78602.20383.09943.59334.47634.02922.83923.35041.7863
C81.55782.20182.19362.19921.56342.20502.20381.10702.52783.43812.64341.58272.52152.2016
H92.18682.50073.09742.56222.18162.52973.09941.10702.66693.57792.33472.19613.29042.5123
N103.85924.08994.18984.69883.14282.81193.59332.52782.66691.04971.04901.45962.37704.1031
H114.60274.67114.83875.53374.14413.81254.47633.43813.57791.04971.71642.08912.54895.1331
H124.04454.20094.61504.73953.31302.90284.02922.64342.33471.04901.71642.10733.19914.0820
C132.56962.83912.77183.53422.57352.78792.83921.58272.19611.45962.08912.10731.25263.5366
O142.90133.01952.68693.97733.44353.79363.35042.52153.29042.37702.54893.19911.25264.4092
H152.83683.81823.25942.59701.10131.78971.78632.20162.51234.10315.13314.08203.53664.4092

picture of Propanamide, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C8 C5 111.544 C1 C8 H9 109.126
C1 C8 C13 109.809 H2 C1 H3 108.223
H2 C1 H4 108.611 H2 C1 C8 110.659
H3 C1 H4 108.816 H3 C1 C8 110.024
H4 C1 C8 110.448 C5 C8 H9 108.349
C5 C8 C13 109.770 H6 C5 H7 108.453
H6 C5 C8 110.518 H6 C5 H15 108.734
H7 C5 C8 110.426 H7 C5 H15 108.436
C8 C5 H15 110.214 C8 C13 N10 112.315
C8 C13 O14 125.170 H9 C8 C13 108.167
N10 C13 O14 122.236 H11 N10 H12 109.736
H11 N10 C13 111.677 H12 N10 C13 113.273
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.218      
2 H 0.074      
3 H 0.082      
4 H 0.072      
5 C -0.218      
6 H 0.079      
7 H 0.078      
8 C -0.061      
9 H 0.065      
10 N -0.376      
11 H 0.185      
12 H 0.180      
13 C 0.203      
14 O -0.219      
15 H 0.073      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.058 1.178 -1.983 2.308
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.678 0.908 -3.249
y 0.908 -37.364 -0.158
z -3.249 -0.158 -33.468
Traceless
 xyz
x 3.738 0.908 -3.249
y 0.908 -4.791 -0.158
z -3.249 -0.158 1.054
Polar
3z2-r22.107
x2-y25.686
xy0.908
xz-3.249
yz-0.158


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.932 0.135 -0.025
y 0.135 4.502 -0.770
z -0.025 -0.770 3.439


<r2> (average value of r2) Å2
<r2> 179.694
(<r2>)1/2 13.405