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All results from a given calculation for C4H9NO (Butanamide)

using model chemistry: B1B95/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-287.728782
Energy at 298.15K-287.738954
Nuclear repulsion energy239.701672
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(2df,p)
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 3778 3618 35.82      
2 A 3635 3482 36.26      
3 A 3136 3003 30.68      
4 A 3133 3001 45.33      
5 A 3109 2978 1.57      
6 A 3079 2949 13.50      
7 A 3071 2941 18.68      
8 A 3047 2918 26.65      
9 A 3036 2907 14.08      
10 A 1826 1749 264.67      
11 A 1611 1543 121.82      
12 A 1502 1438 4.45      
13 A 1494 1430 6.10      
14 A 1482 1420 3.45      
15 A 1455 1393 5.32      
16 A 1415 1355 86.39      
17 A 1404 1344 1.81      
18 A 1356 1298 35.70      
19 A 1317 1261 8.95      
20 A 1252 1199 44.83      
21 A 1241 1188 1.28      
22 A 1139 1090 0.25      
23 A 1107 1060 1.39      
24 A 1084 1038 0.71      
25 A 1059 1014 2.03      
26 A 936 896 1.99      
27 A 881 844 0.66      
28 A 844 808 2.94      
29 A 743 712 6.72      
30 A 650 623 4.24      
31 A 613 587 13.00      
32 A 511 489 3.61      
33 A 420 402 1.81      
34 A 340 325 3.17      
35 A 248 237 0.10      
36 A 180 172 9.00      
37 A 150 144 183.37      
38 A 96 92 0.71      
39 A 26 25 2.36      

Unscaled Zero Point Vibrational Energy (zpe) 28701.1 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 27487.0 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(2df,p)
ABC
0.29383 0.06178 0.05282

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.717 -0.218 0.031
H2 -2.848 -0.572 1.058
H3 -3.514 0.500 -0.176
H4 -2.865 -1.076 -0.632
C5 -1.346 0.409 -0.166
H6 -1.246 0.787 -1.187
H7 -1.218 1.277 0.484
C8 -0.211 -0.564 0.115
H9 -0.247 -1.420 -0.568
H10 -0.314 -0.979 1.125
N11 2.200 -0.751 -0.093
H12 3.129 -0.371 -0.069
H13 2.083 -1.746 -0.067
C14 1.150 0.106 0.031
O15 1.298 1.308 0.077

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 N11 H12 H13 C14 O15
C11.09391.09201.09391.52082.15832.16552.53102.81142.74834.94765.84945.03823.88114.2963
H21.09391.76441.76352.17173.07462.53122.80053.18222.56785.18096.08605.19204.18344.6574
H31.09201.76441.76402.16982.49932.51153.48143.80903.75755.84956.70056.03114.68504.8860
H41.09391.76351.76402.17432.52893.08102.80362.64083.09925.10346.06135.02434.23724.8492
C51.52082.17172.16982.17431.09391.09211.52012.17082.15813.73134.54344.05052.52202.8034
H62.15833.07462.49932.52891.09391.74172.14252.50043.05563.92924.66234.33052.77352.8889
H72.16552.53122.51153.08101.09211.74172.13063.05362.51444.01664.68234.51032.68112.5496
C82.53102.80053.48142.80361.52012.14252.13061.09571.09742.42753.35112.58731.51942.4049
H92.81143.18223.80902.64082.17082.50043.05361.09571.75082.58083.57062.40522.15373.2010
H102.74832.56783.75753.09922.15813.05562.51441.09741.75082.80293.69472.78452.12542.9882
N114.94765.18095.84955.10343.73133.92924.01662.42752.58082.80291.00441.00221.36072.2544
H125.84946.08606.70056.06134.54344.66234.68233.35113.57063.69471.00441.72822.03802.4884
H135.03825.19206.03115.02434.05054.33054.51032.58732.40522.78451.00221.72822.07563.1566
C143.88114.18344.68504.23722.52202.77352.68111.51942.15372.12541.36072.03802.07561.2124
O154.29634.65744.88604.84922.80342.88892.54962.40493.20102.98822.25442.48843.15661.2124

picture of Butanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.196 C1 C5 H7 110.876
C1 C5 C8 112.676 H2 C1 H3 107.639
H2 C1 H4 107.433 H2 C1 C5 111.261
H3 C1 H4 107.604 H3 C1 C5 111.227
H4 C1 C5 111.477 C5 C8 H9 111.132
C5 C8 H10 110.024 C5 C8 C14 112.145
H6 C5 H7 105.639 H6 C5 C8 109.002
H7 C5 C8 108.182 C8 C14 N11 114.774
C8 C14 O15 122.970 H9 C8 H10 105.934
H9 C8 C14 109.828 H10 C8 C14 107.529
N11 C14 O15 122.254 H12 N11 H13 118.915
H12 N11 C14 118.240 H13 N11 C14 122.169
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.410      
2 H 0.122      
3 H 0.127      
4 H 0.120      
5 C -0.187      
6 H 0.121      
7 H 0.138      
8 C -0.330      
9 H 0.117      
10 H 0.135      
11 N -0.565      
12 H 0.271      
13 H 0.268      
14 C 0.442      
15 O -0.371      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.417 -3.401 0.033 3.427
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.072 -5.877 0.012
y -5.877 -38.072 -0.220
z 0.012 -0.220 -37.095
Traceless
 xyz
x 5.512 -5.877 0.012
y -5.877 -3.489 -0.220
z 0.012 -0.220 -2.023
Polar
3z2-r2-4.046
x2-y26.000
xy-5.877
xz0.012
yz-0.220


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.582 -0.331 -0.103
y -0.331 8.108 0.034
z -0.103 0.034 6.090


<r2> (average value of r2) Å2
<r2> 215.255
(<r2>)1/2 14.672