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All results from a given calculation for C4H9NO (Butanamide)

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-287.624234
Energy at 298.15K-287.634938
Nuclear repulsion energy238.306245
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 B1B95/6-31G
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 3777 3603 29.19      
2 A 3633 3465 33.89      
3 A 3148 3002 36.52      
4 A 3145 3000 55.03      
5 A 3119 2975 2.00      
6 A 3089 2946 17.98      
7 A 3075 2933 23.33      
8 A 3054 2913 31.39      
9 A 3042 2901 13.29      
10 A 1746 1666 273.30      
11 A 1671 1594 90.16      
12 A 1549 1477 10.39      
13 A 1541 1470 9.67      
14 A 1537 1465 3.56      
15 A 1508 1438 9.52      
16 A 1456 1389 1.82      
17 A 1437 1370 118.82      
18 A 1394 1330 31.99      
19 A 1340 1278 30.29      
20 A 1312 1251 21.24      
21 A 1274 1215 2.65      
22 A 1162 1108 1.31      
23 A 1146 1093 6.47      
24 A 1105 1054 1.25      
25 A 1085 1034 1.09      
26 A 956 912 3.18      
27 A 911 869 3.44      
28 A 869 829 4.40      
29 A 770 735 23.54      
30 A 698 665 111.00      
31 A 623 594 49.91      
32 A 552 526 139.04      
33 A 512 488 53.79      
34 A 430 410 1.95      
35 A 346 330 2.88      
36 A 238 227 0.21      
37 A 184 176 8.50      
38 A 84 80 1.73      
39 A 37 35 3.42      

Unscaled Zero Point Vibrational Energy (zpe) 29277.1 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 27921.6 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 B1B95/6-31G
ABC
0.28600 0.06131 0.05262

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.724 -0.199 0.045
H2 -2.855 -0.373 1.119
H3 -3.514 0.484 -0.279
H4 -2.882 -1.155 -0.467
C5 -1.342 0.375 -0.255
H6 -1.243 0.577 -1.328
H7 -1.203 1.337 0.246
C8 -0.214 -0.555 0.186
H9 -0.244 -1.497 -0.377
H10 -0.353 -0.821 1.243
N11 2.199 -0.762 -0.115
H12 3.128 -0.379 -0.175
H13 2.077 -1.757 -0.179
C14 1.149 0.095 0.050
O15 1.311 1.328 0.107

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 N11 H12 H13 C14 O15
C11.09541.09351.09551.52662.16382.17162.53992.83042.72924.95755.85925.05253.88474.3150
H21.09541.76731.76822.17593.07992.53262.80703.21142.54515.21616.12095.28394.17034.6117
H31.09351.76731.76702.17452.50302.51833.49133.82403.74395.84896.69846.02404.69074.9129
H41.09551.76821.76702.18092.53513.08842.81172.66103.07155.10786.06665.00354.25194.9065
C51.52662.17592.17452.18091.09611.09401.52772.17322.15793.72134.53404.02992.52562.8422
H62.16383.07992.50302.53511.09611.74862.15262.49023.05943.88694.62044.21752.80253.0242
H72.17162.53262.51833.08841.09401.74862.13673.05602.52554.01344.67794.52912.66752.5178
C82.53992.80703.49132.81171.52772.15262.13671.09711.09932.43953.36552.61201.51592.4244
H92.83043.21143.82402.66102.17322.49023.05601.09711.75882.56463.55822.34422.15813.2608
H102.72922.54513.74393.07152.15793.05942.52551.09931.75882.89083.78432.96662.12562.9459
N114.95755.21615.84895.10783.72133.88694.01342.43952.56462.89081.00661.00451.36452.2814
H125.85926.12096.69846.06664.53404.62044.67793.36553.55823.78431.00661.73232.04722.5096
H135.05255.28396.02405.00354.02994.21754.52912.61202.34422.96661.00451.73232.08353.1914
C143.88474.17034.69074.25192.52562.80252.66751.51592.15812.12561.36452.04722.08351.2453
O154.31504.61174.91294.90652.84223.02422.51782.42443.26082.94592.28142.50963.19141.2453

picture of Butanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.103 C1 C5 H7 110.848
C1 C5 C8 112.521 H2 C1 H3 107.682
H2 C1 H4 107.620 H2 C1 C5 111.106
H3 C1 H4 107.651 H3 C1 C5 111.103
H4 C1 C5 111.497 C5 C8 H9 110.705
C5 C8 H10 109.370 C5 C8 C14 112.151
H6 C5 H7 105.958 H6 C5 C8 109.142
H7 C5 C8 108.031 C8 C14 N11 115.656
C8 C14 O15 122.506 H9 C8 H10 106.404
H9 C8 C14 110.325 H10 C8 C14 107.671
N11 C14 O15 121.827 H12 N11 H13 118.941
H12 N11 C14 118.626 H13 N11 C14 122.433
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.463      
2 H 0.150      
3 H 0.157      
4 H 0.146      
5 C -0.285      
6 H 0.160      
7 H 0.191      
8 C -0.373      
9 H 0.152      
10 H 0.189      
11 N -0.761      
12 H 0.346      
13 H 0.337      
14 C 0.525      
15 O -0.472      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.307 -3.861 -0.214 3.879
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.067 -6.560 -0.854
y -6.560 -39.085 -0.034
z -0.854 -0.034 -37.671
Traceless
 xyz
x 6.311 -6.560 -0.854
y -6.560 -4.216 -0.034
z -0.854 -0.034 -2.094
Polar
3z2-r2-4.189
x2-y27.018
xy-6.560
xz-0.854
yz-0.034


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.699 -0.380 -0.184
y -0.380 7.887 0.118
z -0.184 0.118 5.496


<r2> (average value of r2) Å2
<r2> 216.916
(<r2>)1/2 14.728