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 C3H7NO (Propanamide)

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-246.859301
Energy at 298.15K-246.867669
Nuclear repulsion energy176.911213
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/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 3571 3538 17.65      
2 A 3435 3404 13.66      
3 A 3085 3057 10.07      
4 A 3071 3043 25.59      
5 A 3019 2992 13.90      
6 A 2999 2972 21.67      
7 A 2974 2947 14.66      
8 A 1701 1685 169.75      
9 A 1616 1601 67.26      
10 A 1528 1514 10.05      
11 A 1508 1494 13.22      
12 A 1471 1458 9.53      
13 A 1410 1397 28.79      
14 A 1340 1328 66.01      
15 A 1289 1277 14.99      
16 A 1272 1260 74.14      
17 A 1103 1093 3.88      
18 A 1095 1085 1.48      
19 A 1044 1034 2.77      
20 A 1000 991 3.12      
21 A 823 815 19.88      
22 A 756 749 7.61      
23 A 667 661 36.81      
24 A 590 584 17.61      
25 A 507 502 53.53      
26 A 464 459 187.75      
27 A 437 433 7.10      
28 A 272 269 11.78      
29 A 176 175 1.34      
30 A 64 63 1.71      

Unscaled Zero Point Vibrational Energy (zpe) 22141.2 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 21939.7 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/3-21G
ABC
0.31008 0.12697 0.09438

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.613 -0.024 0.165
H2 1.774 -1.572 0.144
N3 1.741 -0.553 0.102
O4 0.499 1.388 -0.067
C5 0.559 0.139 -0.033
H6 -0.709 -1.140 -1.216
H7 -0.585 -1.650 0.490
C8 -0.681 -0.769 -0.171
H9 -2.861 -0.505 -0.192
H10 -2.036 0.234 1.219
H11 -1.890 1.007 -0.377
C12 -1.958 0.034 0.137

Atom - Atom Distances (Å)
  H1 H2 N3 O4 C5 H6 H7 C8 H9 H10 H11 C12
H11.76151.02252.55332.07063.76683.60303.39475.50764.77474.65144.5715
H21.76151.02093.23042.10662.86362.38592.60274.76904.35204.51104.0629
N31.02251.02092.31051.37632.84272.60082.44704.61194.01663.98043.7448
O42.55333.23042.31051.25083.02793.27342.46103.85853.06772.43842.8122
C52.07062.10661.37631.25082.15472.18691.54343.48392.88252.62052.5242
H63.76682.86362.84273.02792.15471.78451.10862.46713.09502.59002.1834
H73.60302.38592.60083.27342.18691.78451.10572.63802.48773.08442.2011
C83.39472.60272.44702.46101.54341.10861.10572.19642.18542.15811.5392
H95.50764.76904.61193.85853.48392.46712.63802.19641.79371.80641.1023
H104.77474.35204.01663.06772.88253.09502.48772.18541.79371.77921.1034
H114.65144.51103.98042.43842.62052.59003.08442.15811.80641.77921.1024
C124.57154.06293.74482.81222.52422.18342.20111.53921.10231.10341.1024

picture of Propanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 N3 H2 119.093 H1 N3 C5 118.611
H2 N3 C5 122.296 N3 C5 O4 123.094
N3 C5 C8 113.760 O4 C5 C8 123.130
C5 C8 H6 107.551 C5 C8 H7 110.194
C5 C8 C12 109.943 H6 C8 H7 107.400
H6 C8 C12 110.036 H7 C8 C12 111.603
C8 C12 H9 111.429 C8 C12 H10 110.496
C8 C12 H11 108.436 H9 C12 H10 108.826
H9 C12 H11 110.042 H10 C12 H11 107.534
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.317      
2 H 0.312      
3 N -0.733      
4 O -0.469      
5 C 0.606      
6 H 0.234      
7 H 0.204      
8 C -0.518      
9 H 0.194      
10 H 0.209      
11 H 0.231      
12 C -0.587      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.332 -3.297 0.117 3.558
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.879 -2.581 0.669
y -2.581 -32.206 0.073
z 0.669 0.073 -31.061
Traceless
 xyz
x 6.754 -2.581 0.669
y -2.581 -4.236 0.073
z 0.669 0.073 -2.518
Polar
3z2-r2-5.037
x2-y27.327
xy-2.581
xz0.669
yz0.073


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.886 -0.352 0.199
y -0.352 6.184 -0.030
z 0.199 -0.030 3.855


<r2> (average value of r2) Å2
<r2> 128.811
(<r2>)1/2 11.349