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

using model chemistry: HF/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-41.644137
Energy at 298.15K-41.656941
Nuclear repulsion energy113.897457
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/CEP-121G*
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 3808 3440 0.02      
2 A 3796 3430 0.20      
3 A 3722 3363 0.86      
4 A 3717 3358 0.67      
5 A 3261 2946 100.26      
6 A 3247 2934 10.64      
7 A 3239 2926 69.42      
8 A 3200 2890 60.05      
9 A 3176 2869 32.92      
10 A 3095 2796 103.81      
11 A 1844 1666 23.34      
12 A 1832 1655 62.60      
13 A 1631 1474 2.06      
14 A 1624 1467 4.17      
15 A 1614 1458 0.24      
16 A 1567 1415 0.41      
17 A 1544 1395 11.90      
18 A 1518 1372 10.18      
19 A 1496 1352 8.80      
20 A 1460 1319 18.03      
21 A 1364 1232 0.70      
22 A 1310 1184 7.98      
23 A 1256 1135 13.80      
24 A 1176 1063 21.11      
25 A 1131 1021 19.54      
26 A 1091 986 3.55      
27 A 1025 926 12.35      
28 A 996 900 131.34      
29 A 966 873 142.24      
30 A 929 839 55.98      
31 A 855 773 41.86      
32 A 518 468 0.47      
33 A 496 448 19.35      
34 A 391 354 0.70      
35 A 360 325 60.65      
36 A 274 248 12.55      
37 A 259 234 27.30      
38 A 232 210 29.21      
39 A 129 116 5.09      

Unscaled Zero Point Vibrational Energy (zpe) 32575.5 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 29428.7 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 HF/CEP-121G*
ABC
0.26472 0.11586 0.08837

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.477 1.390 -0.238
H2 -0.273 1.940 0.137
H3 1.325 1.863 0.017
N4 -2.066 -0.167 0.022
H5 -2.175 0.695 -0.478
H6 -2.208 0.021 0.998
C7 -0.743 -0.746 -0.221
H8 -0.735 -1.747 0.207
H9 -0.624 -0.854 -1.295
C10 1.772 -0.674 -0.018
H11 1.779 -1.690 0.369
H12 1.906 -0.714 -1.096
H13 2.627 -0.153 0.409
C14 0.460 0.036 0.335
H15 0.369 0.064 1.427

Atom - Atom Distances (Å)
  N1 H2 H3 N4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14 H15
N11.00321.00382.99302.75273.25792.46073.39262.71442.44653.39922.68392.72421.47052.1314
H21.00321.60512.76852.35482.85792.75053.71643.15943.32274.17713.64853.58702.04992.3656
H31.00381.60513.95213.72344.10393.33844.16113.59242.57663.59972.86632.43172.04682.4779
N42.99302.76853.95211.00251.00401.46402.07362.07013.87074.15044.16144.70842.55242.8205
H52.75272.35483.72341.00251.62262.04852.91672.34024.20314.69584.36154.95672.83513.2405
H63.25792.85794.10391.00401.62262.05412.43292.92114.16564.38464.67384.87392.74902.6131
C72.46072.75053.33841.46402.04852.05411.08811.08652.52392.75732.78963.47931.53842.1467
H83.39263.71644.16112.07362.91672.43291.08811.75102.73592.52073.12053.72642.15002.4469
H92.71443.15943.59242.07012.34022.92111.08651.75102.72083.04082.54133.73682.15003.0397
C102.44653.32272.57663.87074.20314.16562.52392.73592.72081.08731.08691.08871.53292.1445
H113.39924.17713.59974.15044.69584.38462.75732.52073.04081.08731.76491.75582.17342.4871
H122.68393.64852.86634.16144.36154.67382.78963.12052.54131.08691.76491.76012.16763.0544
H132.72423.58702.43174.70844.95674.87393.47933.72643.73681.08871.75581.76012.17692.4863
C141.47052.04992.04682.55242.83512.74901.53842.15002.15001.53292.17342.16762.17691.0966
H152.13142.36562.47792.82053.24052.61312.14672.44693.03972.14452.48713.05442.48631.0966

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 109.711 N1 C14 C10 109.081
N1 C14 H15 111.426 H2 N1 H3 106.204
H2 N1 C14 110.499 H3 N1 C14 110.201
N4 C7 H8 107.777 N4 C7 H9 107.588
N4 C7 C14 116.430 H5 N4 H6 107.930
H5 N4 C7 110.912 H6 N4 C7 111.307
C7 C14 C10 110.525 C7 C14 H15 107.942
H8 C7 H9 107.259 H8 C7 C14 108.671
H9 C7 C14 108.762 C10 C14 H15 108.143
H11 C10 H12 108.530 H11 C10 H13 107.591
H11 C10 C14 110.944 H12 C10 H13 108.005
H12 C10 C14 110.509 H13 C10 C14 111.144
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.805      
2 H 0.313      
3 H 0.329      
4 N -0.757      
5 H 0.324      
6 H 0.310      
7 C -0.187      
8 H 0.150      
9 H 0.156      
10 C -0.571      
11 H 0.163      
12 H 0.170      
13 H 0.161      
14 C 0.128      
15 H 0.115      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.166 1.156 1.892 2.505
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.675 -0.192 -0.081
y -0.192 7.148 -0.076
z -0.081 -0.076 6.515


<r2> (average value of r2) Å2
<r2> 121.639
(<r2>)1/2 11.029