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

using model chemistry: B3LYP/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 B3LYP/CEP-121G
 hartrees
Energy at 0K-42.715903
Energy at 298.15K-42.727978
Nuclear repulsion energy112.389792
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 B3LYP/CEP-121G
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 3663 3570 0.21      
2 A 3600 3508 0.56      
3 A 3524 3435 1.24      
4 A 3477 3388 5.14      
5 A 3080 3001 65.42      
6 A 3060 2982 56.63      
7 A 3056 2978 29.14      
8 A 2990 2914 74.28      
9 A 2979 2903 25.78      
10 A 2854 2782 124.50      
11 A 1686 1643 56.74      
12 A 1680 1637 31.22      
13 A 1521 1483 4.85      
14 A 1510 1472 6.56      
15 A 1491 1453 1.43      
16 A 1423 1387 13.19      
17 A 1405 1369 0.58      
18 A 1387 1352 18.58      
19 A 1361 1326 6.77      
20 A 1344 1310 10.45      
21 A 1247 1215 1.48      
22 A 1189 1158 2.15      
23 A 1168 1139 5.83      
24 A 1104 1076 41.27      
25 A 1032 1006 7.69      
26 A 1007 981 1.99      
27 A 944 920 0.91      
28 A 872 850 2.70      
29 A 825 804 17.84      
30 A 673 656 185.07      
31 A 509 496 96.46      
32 A 465 453 36.24      
33 A 424 413 165.87      
34 A 360 351 6.75      
35 A 325 317 106.61      
36 A 251 244 10.51      
37 A 217 212 2.64      
38 A 183 179 93.86      
39 A 120 117 6.10      

Unscaled Zero Point Vibrational Energy (zpe) 30002.6 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 29237.6 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 B3LYP/CEP-121G
ABC
0.26024 0.11284 0.08628

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.476 1.409 -0.194
H2 -0.364 1.935 0.042
H3 1.321 1.941 0.004
N4 -2.065 -0.157 0.032
H5 -2.335 0.627 -0.550
H6 -2.357 -0.082 1.000
C7 -0.740 -0.751 -0.226
H8 -0.728 -1.773 0.183
H9 -0.612 -0.830 -1.314
C10 1.809 -0.669 -0.032
H11 1.829 -1.702 0.340
H12 1.926 -0.683 -1.124
H13 2.673 -0.141 0.397
C14 0.482 0.027 0.351
H15 0.390 0.018 1.460

Atom - Atom Distances (Å)
  N1 H2 H3 N4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14 H15
N11.01791.01792.99342.93943.41692.47893.42282.72992.47373.43432.71032.75331.48532.1623
H21.01791.68492.69632.43872.99332.72503.72793.08913.39124.25683.66793.69552.10912.5001
H31.01791.68493.98353.92424.31443.39804.24533.62672.65513.69372.91972.51392.11822.5851
N42.99342.69633.98351.01301.01421.47532.10302.09163.90814.20084.18844.75242.57382.8458
H52.93942.43873.92421.01301.70512.13282.97992.38174.37224.85324.49465.15443.01783.4405
H63.41692.99334.31441.01421.70512.13732.48632.99324.33194.53714.81875.06662.91472.7874
C72.47892.72503.39801.47532.13282.13731.10071.09832.55712.79682.81373.52231.55922.1703
H83.42283.72794.24532.10302.97992.48631.10071.77322.77482.56253.15263.77802.17532.4672
H92.72993.08913.62672.09162.38172.99321.09831.77322.74423.07502.54993.76792.16893.0689
C102.47373.39122.65513.90814.37224.33192.55712.77482.74421.09861.09791.09981.54622.1702
H113.43434.25683.69374.20084.85324.53712.79682.56253.07501.09861.78581.77532.19192.5068
H122.71033.66792.91974.18844.49464.81872.81373.15262.54991.09791.78581.77912.18283.0863
H132.75333.69552.51394.75245.15445.06663.52233.77803.76791.09981.77531.77912.19792.5230
C141.48532.10912.11822.57383.01782.91471.55922.17532.16891.54622.19192.18282.19791.1127
H152.16232.50012.58512.84583.44052.78742.17032.46723.06892.17022.50683.08632.52301.1127

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 108.997 N1 C14 C10 109.352
N1 C14 H15 111.872 H2 N1 H3 111.710
H2 N1 C14 113.507 H3 N1 C14 114.305
N4 C7 H8 108.573 N4 C7 H9 107.827
N4 C7 C14 115.997 H5 N4 H6 114.511
H5 N4 C7 116.770 H6 N4 C7 117.088
C7 C14 C10 110.854 C7 C14 H15 107.456
H8 C7 H9 107.489 H8 C7 C14 108.501
H9 C7 C14 108.152 C10 C14 H15 108.307
H11 C10 H12 108.786 H11 C10 H13 107.715
H11 C10 C14 110.808 H12 C10 H13 108.100
H12 C10 C14 110.126 H13 C10 C14 111.212
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.614      
2 H 0.243      
3 H 0.262      
4 N -0.574      
5 H 0.271      
6 H 0.261      
7 C -0.238      
8 H 0.124      
9 H 0.136      
10 C -0.521      
11 H 0.138      
12 H 0.154      
13 H 0.138      
14 C 0.132      
15 H 0.089      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.494 1.105 1.566 1.979
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 8.461 -0.191 -0.052
y -0.191 7.844 -0.144
z -0.052 -0.144 6.987


<r2> (average value of r2) Å2
<r2> 124.480
(<r2>)1/2 11.157