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

using model chemistry: B3LYP/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-229.854314
Energy at 298.15K-229.866772
Nuclear repulsion energy194.726148
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/6-31G(2df,p)
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 3571 3446 0.04      
2 A 3562 3438 0.22      
3 A 3489 3367 1.44      
4 A 3483 3361 0.69      
5 A 3111 3002 29.86      
6 A 3095 2987 31.57      
7 A 3072 2964 26.29      
8 A 3031 2925 33.98      
9 A 3023 2917 26.13      
10 A 2899 2798 79.00      
11 A 1660 1602 1.90      
12 A 1650 1593 49.98      
13 A 1502 1449 1.69      
14 A 1490 1438 3.68      
15 A 1475 1424 0.26      
16 A 1413 1364 0.96      
17 A 1407 1358 10.57      
18 A 1398 1349 3.78      
19 A 1376 1328 10.78      
20 A 1345 1298 12.01      
21 A 1266 1221 0.99      
22 A 1206 1164 4.73      
23 A 1165 1124 4.18      
24 A 1107 1068 10.62      
25 A 1050 1013 10.64      
26 A 1018 982 1.44      
27 A 954 921 11.99      
28 A 908 877 87.69      
29 A 886 855 75.81      
30 A 838 809 91.49      
31 A 794 767 55.03      
32 A 490 473 0.91      
33 A 466 450 19.53      
34 A 365 352 1.52      
35 A 356 343 44.14      
36 A 257 248 5.70      
37 A 238 229 29.44      
38 A 216 208 19.24      
39 A 118 114 4.54      

Unscaled Zero Point Vibrational Energy (zpe) 30374.7 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 29311.6 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/6-31G(2df,p)
ABC
0.26508 0.11605 0.08860

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.488 1.390 -0.222
H2 -0.292 1.922 0.152
H3 1.326 1.877 0.082
N4 -2.060 -0.135 0.030
H5 -2.138 0.752 -0.459
H6 -2.187 0.058 1.020
C7 -0.746 -0.729 -0.215
H8 -0.745 -1.742 0.208
H9 -0.625 -0.831 -1.300
C10 1.771 -0.682 -0.029
H11 1.768 -1.713 0.339
H12 1.899 -0.700 -1.116
H13 2.640 -0.176 0.405
C14 0.471 0.033 0.340
H15 0.382 0.036 1.444

Atom - Atom Distances (Å)
  N1 H2 H3 N4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14 H15
N11.01581.01602.98022.71283.23612.45233.39322.70842.44473.40332.67552.73441.46932.1490
H21.01581.62052.71492.26892.79622.71483.69233.13033.32744.18293.64483.61482.04682.3834
H31.01601.62053.93923.68224.06583.34294.17173.61312.60033.62662.89932.45922.04962.4768
N42.98022.71493.93921.01511.01651.46312.08442.07663.87034.15274.16054.71552.55572.8270
H52.71282.26893.68221.01511.63372.04722.93312.34574.18554.68734.34034.94342.82183.2372
H63.23612.79624.06581.01651.63372.05462.44522.93444.16094.38714.67284.87192.74392.6038
C72.45232.71483.34291.46312.04722.05461.09731.09642.52392.75612.79463.48651.53922.1468
H83.39323.69234.17172.08442.93312.44521.09731.76542.73992.51693.13543.73482.15512.4411
H92.70843.13033.61312.07662.34572.93441.09641.76542.71623.03192.53463.74162.15333.0487
C102.44473.32742.60033.87034.18554.16092.52392.73992.71621.09451.09491.09571.52832.1483
H113.40334.18293.62664.15274.68734.38712.75612.51693.03191.09451.77791.76822.17482.4909
H122.67553.64482.89934.16054.34034.67282.79463.13542.53461.09491.77791.77132.16703.0657
H132.73443.61482.45924.71554.94344.87193.48653.73483.74161.09571.76821.77132.18002.4949
C141.46932.04682.04962.55572.82182.74391.53922.15512.15331.52832.17482.16702.18001.1075
H152.14902.38342.47682.82703.23722.60382.14682.44113.04872.14832.49093.06572.49491.1075

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 109.180 N1 C14 C10 109.264
N1 C14 H15 112.258 H2 N1 H3 105.803
H2 N1 C14 109.549 H3 N1 C14 109.768
N4 C7 H8 108.143 N4 C7 H9 107.582
N4 C7 C14 116.676 H5 N4 H6 107.052
H5 N4 C7 110.074 H6 N4 C7 110.616
C7 C14 C10 110.729 C7 C14 H15 107.288
H8 C7 H9 107.168 H8 C7 C14 108.490
H9 C7 C14 108.407 C10 C14 H15 108.114
H11 C10 H12 108.597 H11 C10 H13 107.672
H11 C10 C14 110.945 H12 C10 H13 107.921
H12 C10 C14 110.304 H13 C10 C14 111.288
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.515      
2 H 0.212      
3 H 0.222      
4 N -0.515      
5 H 0.228      
6 H 0.219      
7 C -0.109      
8 H 0.095      
9 H 0.107      
10 C -0.376      
11 H 0.113      
12 H 0.125      
13 H 0.105      
14 C 0.045      
15 H 0.044      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.861 1.032 1.540 2.044
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.322 -2.479 -0.780
y -2.479 -31.035 1.521
z -0.780 1.521 -33.040
Traceless
 xyz
x -3.285 -2.479 -0.780
y -2.479 3.146 1.521
z -0.780 1.521 0.139
Polar
3z2-r20.278
x2-y2-4.288
xy-2.479
xz-0.780
yz1.521


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.041 -0.222 -0.106
y -0.222 7.417 -0.036
z -0.106 -0.036 6.438


<r2> (average value of r2) Å2
<r2> 144.108
(<r2>)1/2 12.004