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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-229.745705
Energy at 298.15K-229.758209
Nuclear repulsion energy195.099100
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3588 3433 0.02      
2 A 3575 3420 0.43      
3 A 3490 3339 2.85      
4 A 3489 3338 1.37      
5 A 3141 3005 28.89      
6 A 3125 2989 32.34      
7 A 3105 2971 28.54      
8 A 3055 2923 44.73      
9 A 3050 2918 19.96      
10 A 2918 2792 91.11      
11 A 1699 1625 4.30      
12 A 1688 1615 60.65      
13 A 1527 1461 3.09      
14 A 1515 1450 5.27      
15 A 1498 1433 0.79      
16 A 1437 1374 4.05      
17 A 1426 1364 11.93      
18 A 1413 1352 4.34      
19 A 1391 1331 10.51      
20 A 1355 1297 10.85      
21 A 1279 1223 1.16      
22 A 1220 1167 5.42      
23 A 1184 1132 5.05      
24 A 1131 1082 10.82      
25 A 1062 1016 13.49      
26 A 1033 988 1.33      
27 A 968 926 13.07      
28 A 921 881 109.01      
29 A 896 857 91.63      
30 A 852 815 89.87      
31 A 806 771 68.11      
32 A 495 473 3.09      
33 A 472 451 24.82      
34 A 371 355 57.32      
35 A 366 350 1.01      
36 A 257 245 8.87      
37 A 246 235 38.33      
38 A 223 214 24.00      
39 A 120 114 6.38      

Unscaled Zero Point Vibrational Energy (zpe) 30691.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 29362.5 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 B3PW91/6-31G*
ABC
0.26653 0.11670 0.08910

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.478 1.385 -0.221
H2 -0.302 1.914 0.163
H3 1.319 1.877 0.076
N4 -2.053 -0.135 0.023
H5 -2.127 0.745 -0.482
H6 -2.190 0.069 1.011
C7 -0.742 -0.732 -0.204
H8 -0.747 -1.740 0.232
H9 -0.617 -0.849 -1.288
C10 1.769 -0.675 -0.035
H11 1.771 -1.709 0.328
H12 1.889 -0.686 -1.124
H13 2.641 -0.169 0.397
C14 0.472 0.033 0.343
H15 0.392 0.037 1.449

Atom - Atom Distances (Å)
  N1 H2 H3 N4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14 H15
N11.01791.01802.96242.69593.21982.44403.38742.70762.43773.39762.66372.73431.46472.1480
H21.01791.62342.69902.26212.77272.70793.68243.13723.32114.17753.63573.61382.04232.3795
H31.01801.62343.92643.67014.05603.33674.16843.61112.59343.62292.88692.45752.04622.4759
N42.96242.69903.92641.01681.01811.45782.08012.07113.85964.14624.14204.70912.55082.8357
H52.69592.26213.67011.01681.63982.04342.93082.33884.17024.67664.31134.93432.81863.2525
H63.21982.77274.05601.01811.63982.05262.44232.93274.16134.39524.66544.87602.74512.6192
C72.44402.70793.33671.45782.04342.05261.09831.09722.51722.74832.78803.48241.53622.1474
H83.38743.68244.16842.08012.93082.44231.09831.76592.74472.51983.14603.73832.15502.4369
H92.70763.13723.61112.07112.33882.93271.09721.76592.69993.00812.51653.73032.15023.0486
C102.43773.32112.59343.85964.17024.16132.51722.74472.69991.09581.09601.09711.52442.1457
H113.39764.17753.62294.14624.67664.39522.74832.51983.00811.09581.77991.76982.17282.4914
H122.66373.63572.88694.14204.31134.66542.78803.14602.51651.09601.77991.77372.16233.0637
H132.73433.61382.45754.70914.93434.87603.48243.73833.73031.09711.76981.77372.17912.4920
C141.46472.04232.04622.55082.81862.74511.53622.15502.15021.52442.17282.16232.17911.1095
H152.14802.37952.47592.83573.25252.61922.14742.43693.04862.14572.49143.06372.49201.1095

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 109.037 N1 C14 C10 109.263
N1 C14 H15 112.386 H2 N1 H3 105.766
H2 N1 C14 109.387 H3 N1 C14 109.703
N4 C7 H8 108.107 N4 C7 H9 107.474
N4 C7 C14 116.829 H5 N4 H6 107.385
H5 N4 C7 110.050 H6 N4 C7 110.748
C7 C14 C10 110.660 C7 C14 H15 107.416
H8 C7 H9 107.090 H8 C7 C14 108.627
H9 C7 C14 108.318 C10 C14 H15 108.071
H11 C10 H12 108.605 H11 C10 H13 107.623
H11 C10 C14 110.987 H12 C10 H13 107.954
H12 C10 C14 110.146 H13 C10 C14 111.412
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.746     -0.932
2 H 0.299     0.310
3 H 0.313     0.369
4 N -0.747     -0.982
5 H 0.318     0.380
6 H 0.306     0.351
7 C -0.170     0.311
8 H 0.159     0.000
9 H 0.173     0.022
10 C -0.513     -0.488
11 H 0.168     0.093
12 H 0.182     0.135
13 H 0.160     0.141
14 C -0.022     0.319
15 H 0.123     -0.029


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.014 1.206 1.770 2.370
CHELPG        
AIM        
ESP 1.004 1.204 1.735 2.338


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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 143.449
(<r2>)1/2 11.977