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All results from a given calculation for C3H10N2 (1,2-Diaminopropane)

using model chemistry: HF/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 HF/STO-3G
 hartrees
Energy at 0K-225.505596
Energy at 298.15K-225.518085
Nuclear repulsion energy193.058692
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 HF/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 4092 3341 4.05      
2 A 4083 3334 5.45      
3 A 3902 3186 10.13      
4 A 3900 3184 0.23      
5 A 3761 3071 0.63      
6 A 3751 3063 1.49      
7 A 3724 3041 1.18      
8 A 3604 2943 3.84      
9 A 3575 2919 15.64      
10 A 3570 2915 2.34      
11 A 2028 1656 2.35      
12 A 2020 1649 8.12      
13 A 1834 1498 1.02      
14 A 1828 1493 1.05      
15 A 1796 1466 0.17      
16 A 1747 1426 0.29      
17 A 1712 1398 1.64      
18 A 1666 1361 21.86      
19 A 1631 1332 2.70      
20 A 1590 1298 27.92      
21 A 1496 1222 1.05      
22 A 1431 1169 13.48      
23 A 1389 1134 10.07      
24 A 1315 1074 3.28      
25 A 1245 1017 11.70      
26 A 1221 997 1.45      
27 A 1160 947 30.62      
28 A 1132 924 83.72      
29 A 1089 889 43.55      
30 A 1010 825 16.72      
31 A 948 774 8.60      
32 A 535 437 0.72      
33 A 502 410 18.39      
34 A 403 329 0.39      
35 A 352 287 50.36      
36 A 279 228 3.93      
37 A 253 207 47.82      
38 A 229 187 7.37      
39 A 89 73 5.55      

Unscaled Zero Point Vibrational Energy (zpe) 35946.6 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 29350.4 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 HF/STO-3G
ABC
0.25799 0.11427 0.08695

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.512 1.408 -0.243
H2 -0.235 1.963 0.206
H3 1.385 1.851 0.086
N4 -2.087 -0.126 0.038
H5 -2.109 0.793 -0.430
H6 -2.141 0.087 1.048
C7 -0.762 -0.739 -0.231
H8 -0.762 -1.744 0.194
H9 -0.650 -0.832 -1.311
C10 1.774 -0.708 -0.018
H11 1.752 -1.722 0.370
H12 1.902 -0.750 -1.095
H13 2.631 -0.197 0.410
C14 0.467 0.033 0.337
H15 0.375 0.067 1.430

Atom - Atom Distances (Å)
  N1 H2 H3 N4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14 H15
N11.03311.03283.03142.69903.23272.49643.42792.74012.47453.42222.70462.73731.49292.1483
H21.03311.62812.79742.29952.80412.78733.74453.20703.35014.19003.69033.59452.05812.3378
H31.03281.62813.99613.68734.05833.37894.18903.64572.59103.60312.90292.41902.05202.4514
N43.03142.79743.99611.03211.03341.48482.09672.09383.90544.17114.19364.73352.57672.8346
H52.69902.29953.68731.03211.63872.05002.93932.35484.18404.67744.34884.91512.79363.1872
H63.23272.80414.05831.03341.63872.05422.44592.93804.13484.34614.65154.82282.70392.5447
C72.49642.78733.37891.48482.05002.05421.09111.08992.54502.76552.80023.49521.55822.1676
H83.42793.74454.18902.09672.93932.44591.09111.76322.74812.52113.12203.73602.16572.4700
H92.74013.20703.64572.09382.35482.93801.08991.76322.75043.06442.56243.75942.17053.0610
C102.47453.35012.59103.90544.18404.13482.54502.74812.75041.08561.08541.08611.54382.1574
H113.42224.19003.60314.17114.67744.34612.76552.52113.06441.08561.76461.76082.17542.4939
H122.70463.69032.90294.19364.34884.65152.80023.12202.56241.08541.76461.76182.17273.0614
H132.73733.59452.41904.73354.91514.82283.49523.73603.75941.08611.76081.76182.17732.4897
C141.49292.05812.05202.57672.79362.70391.55822.16572.17051.54382.17542.17272.17731.0975
H152.14832.33782.45142.83463.18722.54472.16762.47003.06102.15742.49393.06142.48971.0975

picture of 1,2-Diaminopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C14 C7 109.788 N1 C14 C10 109.133
N1 C14 H15 111.142 H2 N1 H3 104.020
H2 N1 C14 107.734 H3 N1 C14 107.267
N4 C7 H8 107.991 N4 C7 H9 107.835
N4 C7 C14 115.699 H5 N4 H6 105.002
H5 N4 C7 107.712 H6 N4 C7 107.978
C7 C14 C10 110.253 C7 C14 H15 108.164
H8 C7 H9 107.887 H8 C7 C14 108.374
H9 C7 C14 108.808 C10 C14 H15 108.345
H11 C10 H12 108.748 H11 C10 H13 108.349
H11 C10 C14 110.439 H12 C10 H13 108.453
H12 C10 C14 110.233 H13 C10 C14 110.558
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.387      
2 H 0.138      
3 H 0.146      
4 N -0.381      
5 H 0.150      
6 H 0.139      
7 C -0.023      
8 H 0.060      
9 H 0.069      
10 C -0.182      
11 H 0.062      
12 H 0.069      
13 H 0.057      
14 C 0.048      
15 H 0.034      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.375 0.949 1.944 2.563
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.083 -2.608 -0.566
y -2.608 -29.671 2.198
z -0.566 2.198 -31.127
Traceless
 xyz
x -4.684 -2.608 -0.566
y -2.608 3.434 2.198
z -0.566 2.198 1.250
Polar
3z2-r22.500
x2-y2-5.412
xy-2.608
xz-0.566
yz2.198


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.833 -0.271 -0.170
y -0.271 3.787 -0.041
z -0.170 -0.041 3.126


<r2> (average value of r2) Å2
<r2> 145.298
(<r2>)1/2 12.054