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

using model chemistry: HF/CEP-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 HF/CEP-31G
 hartrees
Energy at 0K-41.533357
Energy at 298.15K-41.545506
Nuclear repulsion energy113.173747
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-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 3983 3590 8.19      
2 A 3908 3522 1.34      
3 A 3838 3459 2.42      
4 A 3784 3411 0.08      
5 A 3300 2975 155.52      
6 A 3290 2966 1.03      
7 A 3274 2951 100.55      
8 A 3228 2910 86.91      
9 A 3200 2884 46.10      
10 A 3127 2819 138.69      
11 A 1826 1646 59.55      
12 A 1809 1630 42.03      
13 A 1638 1476 4.48      
14 A 1629 1469 6.72      
15 A 1619 1460 0.92      
16 A 1558 1404 6.80      
17 A 1549 1396 5.93      
18 A 1520 1370 26.59      
19 A 1478 1332 6.94      
20 A 1462 1318 4.43      
21 A 1353 1219 1.50      
22 A 1294 1166 5.76      
23 A 1268 1143 10.96      
24 A 1199 1081 55.38      
25 A 1110 1001 10.83      
26 A 1093 985 2.86      
27 A 1031 930 0.49      
28 A 941 848 8.27      
29 A 894 806 18.44      
30 A 751 677 255.33      
31 A 536 483 23.89      
32 A 496 447 29.03      
33 A 390 351 7.00      
34 A 341 307 57.68      
35 A 273 246 6.08      
36 A 252 227 168.96      
37 A 241 218 4.67      
38 A 164 148 301.63      
39 A 132 119 48.59      

Unscaled Zero Point Vibrational Energy (zpe) 32389.4 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 29195.8 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-31G
ABC
0.26341 0.11422 0.08739

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.497 1.401 -0.181
H2 -0.314 1.951 0.028
H3 1.349 1.908 -0.027
N4 -2.046 -0.138 0.045
H5 -2.382 0.594 -0.544
H6 -2.387 -0.139 0.984
C7 -0.738 -0.730 -0.240
H8 -0.731 -1.754 0.133
H9 -0.618 -0.773 -1.320
C10 1.788 -0.683 -0.027
H11 1.800 -1.708 0.347
H12 1.902 -0.705 -1.110
H13 2.652 -0.166 0.394
C14 0.474 0.026 0.353
H15 0.377 0.021 1.447

Atom - Atom Distances (Å)
  N1 H2 H3 N4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14 H15
N11.00241.00292.98103.01263.47032.46303.40052.69582.45593.41142.69692.72551.47492.1373
H21.00241.66422.71372.53953.09472.72733.73073.05483.37054.23773.64203.66252.10572.4935
H31.00291.66423.96413.98954.37773.36964.21493.56752.62783.66272.88262.48532.10962.5841
N42.98102.71373.96410.99740.99841.46412.08582.07553.87334.16524.15254.71142.54462.8043
H53.01262.53953.98950.99741.69392.13262.94932.36284.39194.85614.51245.17733.04773.4509
H63.47033.09474.37770.99841.69392.13682.46482.97324.32974.51634.80615.07362.93462.8073
C72.46302.72733.36961.46412.13262.13681.09081.08802.53502.78232.77933.49451.54652.1570
H83.40053.73074.21492.08582.94932.46481.09081.75782.74242.54083.09523.74712.16162.4714
H92.69583.05483.56752.07552.36282.97321.08801.75782.73313.08252.52933.74202.15233.0464
C102.45593.37052.62783.87334.39194.32972.53502.74242.73311.09091.08971.09161.54022.1583
H113.41144.23773.66274.16524.85614.51632.78232.54083.08251.09091.77181.76232.18232.4944
H122.69693.64202.88264.15254.51244.80612.77933.09522.52931.08971.77181.76582.17123.0648
H132.72553.66252.48534.71145.17735.07363.49453.74713.74201.09161.76231.76582.18662.5139
C141.47492.10572.10962.54463.04772.93461.54652.16162.15231.54022.18232.17122.18661.0984
H152.13732.49352.58412.80433.45092.80732.15702.47143.04642.15832.49443.06482.51391.0984

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 109.190 N1 C14 C10 109.062
N1 C14 H15 111.474 H2 N1 H3 112.176
H2 N1 C14 115.095 H3 N1 C14 115.410
N4 C7 H8 108.569 N4 C7 H9 107.925
N4 C7 C14 115.359 H5 N4 H6 116.155
H5 N4 C7 118.859 H6 N4 C7 119.187
C7 C14 C10 110.423 C7 C14 H15 108.082
H8 C7 H9 107.562 H8 C7 C14 108.861
H9 C7 C14 108.304 C10 C14 H15 108.607
H11 C10 H12 108.685 H11 C10 H13 107.702
H11 C10 C14 110.927 H12 C10 H13 108.092
H12 C10 C14 110.111 H13 C10 C14 111.223
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.704      
2 H 0.270      
3 H 0.275      
4 N -0.688      
5 H 0.296      
6 H 0.287      
7 C -0.110      
8 H 0.095      
9 H 0.105      
10 C -0.372      
11 H 0.101      
12 H 0.113      
13 H 0.111      
14 C 0.152      
15 H 0.072      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.511 0.899 1.642 1.941
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 7.063 -0.303 -0.128
y -0.303 6.237 -0.267
z -0.128 -0.267 5.548


<r2> (average value of r2) Å2
<r2> 123.217
(<r2>)1/2 11.100