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

using model chemistry: B3LYP/3-21G

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/3-21G
 hartrees
Energy at 0K-228.565652
Energy at 298.15K-228.578005
Nuclear repulsion energy193.945113
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/3-21G
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 3527 3404 0.25      
2 A 3480 3358 1.50      
3 A 3418 3298 1.65      
4 A 3387 3268 7.45      
5 A 3128 3019 31.69      
6 A 3107 2998 18.59      
7 A 3105 2996 29.69      
8 A 3050 2943 41.27      
9 A 3045 2938 18.65      
10 A 2907 2805 88.88      
11 A 1709 1649 2.01      
12 A 1703 1644 47.30      
13 A 1569 1514 4.80      
14 A 1554 1500 5.38      
15 A 1524 1471 1.72      
16 A 1452 1401 12.08      
17 A 1421 1371 6.03      
18 A 1419 1369 3.17      
19 A 1390 1341 8.36      
20 A 1369 1321 10.61      
21 A 1287 1242 1.33      
22 A 1220 1177 2.75      
23 A 1165 1124 0.23      
24 A 1086 1048 11.17      
25 A 1065 1027 5.30      
26 A 1024 988 1.01      
27 A 945 912 5.01      
28 A 892 861 3.50      
29 A 838 808 33.16      
30 A 729 703 138.52      
31 A 623 601 257.98      
32 A 491 474 5.62      
33 A 461 445 31.44      
34 A 387 373 75.47      
35 A 364 351 1.05      
36 A 258 249 6.82      
37 A 235 227 7.00      
38 A 210 203 92.61      
39 A 115 111 11.82      

Unscaled Zero Point Vibrational Energy (zpe) 30328.4 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 29263.9 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/3-21G
ABC
0.26443 0.11553 0.08844

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.449 1.392 -0.203
H2 -0.397 1.887 0.097
H3 1.274 1.938 0.066
N4 -2.049 -0.140 0.024
H5 -2.194 0.708 -0.527
H6 -2.260 0.014 1.013
C7 -0.726 -0.752 -0.209
H8 -0.729 -1.766 0.209
H9 -0.582 -0.824 -1.292
C10 1.797 -0.652 -0.047
H11 1.820 -1.694 0.288
H12 1.882 -0.618 -1.138
H13 2.661 -0.133 0.384
C14 0.483 0.024 0.369
H15 0.403 0.003 1.474

Atom - Atom Distances (Å)
  N1 H2 H3 N4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14 H15
N11.02521.02532.93872.74953.27292.44503.39562.67542.45293.41272.63972.74991.48282.1778
H21.02521.67202.61552.23802.79552.67713.66983.05143.35854.21673.60483.67622.07812.4670
H31.02531.67203.91913.72734.13323.36374.21363.59402.64473.68032.89062.51292.09342.5465
N42.93872.61553.91911.02111.02271.47602.10262.08593.88024.17824.12654.72372.55992.8527
H52.74952.23803.72731.02111.68982.09472.96802.35184.24354.74894.32965.01112.90433.3539
H63.27292.79554.13321.02271.68982.10502.48132.97114.24524.48214.70924.96282.81662.7027
C72.44502.67713.36371.47602.09472.10501.09691.09472.53022.76052.77173.49421.54842.1636
H83.39563.66984.21362.10262.96802.48131.09691.77862.77272.55173.15433.76722.16752.4524
H92.67543.05143.59402.08592.35182.97111.09471.77862.69013.00432.47693.71552.14713.0508
C102.45293.35852.64473.88024.24354.24522.53022.77272.69011.09561.09461.09671.53542.1650
H113.41274.21673.68034.17824.74894.48212.76052.55173.00431.09561.78801.77622.17932.5095
H122.63973.60482.89064.12654.32964.70922.77173.15432.47691.09461.78801.77822.15453.0656
H132.74993.67622.51294.72375.01114.96283.49423.76723.71551.09671.77621.77822.18432.5107
C141.48282.07812.09342.55992.90432.81661.54842.16752.14711.53542.17932.15452.18431.1085
H152.17782.46702.54652.85273.35392.70272.16362.45243.05082.16502.50953.06562.51071.1085

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 107.508 N1 C14 C10 108.706
N1 C14 H15 113.581 H2 N1 H3 109.264
H2 N1 C14 110.575 H3 N1 C14 111.861
N4 C7 H8 108.721 N4 C7 H9 107.542
N4 C7 C14 115.628 H5 N4 H6 111.541
H5 N4 C7 112.763 H6 N4 C7 113.561
C7 C14 C10 110.263 C7 C14 H15 107.895
H8 C7 H9 108.495 H8 C7 C14 108.844
H9 C7 C14 107.408 C10 C14 H15 108.867
H11 C10 H12 109.441 H11 C10 H13 108.227
H11 C10 C14 110.739 H12 C10 H13 108.474
H12 C10 C14 108.852 H13 C10 C14 111.067
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.651     -0.952
2 H 0.244     0.336
3 H 0.260     0.367
4 N -0.664     -0.977
5 H 0.268     0.377
6 H 0.258     0.364
7 C -0.181     0.196
8 H 0.184     0.021
9 H 0.206     0.051
10 C -0.535     -0.575
11 H 0.183     0.119
12 H 0.203     0.156
13 H 0.178     0.160
14 C -0.102     0.381
15 H 0.148     -0.024


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.732 1.286 1.677 2.236
CHELPG        
AIM        
ESP 0.711 1.292 1.658 2.219


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 7.139 -0.288 -0.139
y -0.288 6.577 -0.204
z -0.139 -0.204 5.630


<r2> (average value of r2) Å2
<r2> 144.572
(<r2>)1/2 12.024