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

using model chemistry: B1B95/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/3-21G*
 hartrees
Energy at 0K-228.434296
Energy at 298.15K-228.446597
Nuclear repulsion energy195.273343
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 B1B95/3-21G*
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 3594 3432 0.53      
2 A 3527 3368 0.89      
3 A 3475 3318 0.36      
4 A 3425 3270 5.77      
5 A 3152 3010 25.42      
6 A 3131 2989 26.10      
7 A 3127 2986 21.42      
8 A 3064 2926 42.62      
9 A 3060 2922 15.51      
10 A 2930 2798 85.35      
11 A 1702 1625 7.11      
12 A 1694 1617 52.25      
13 A 1562 1491 6.15      
14 A 1545 1475 6.63      
15 A 1515 1446 2.56      
16 A 1442 1377 16.26      
17 A 1418 1354 2.67      
18 A 1413 1349 7.24      
19 A 1383 1321 6.65      
20 A 1361 1300 9.46      
21 A 1282 1224 1.39      
22 A 1217 1162 2.56      
23 A 1171 1118 0.52      
24 A 1107 1057 15.99      
25 A 1062 1014 4.70      
26 A 1032 986 0.91      
27 A 958 914 4.53      
28 A 887 847 3.75      
29 A 848 810 26.77      
30 A 725 693 141.65      
31 A 583 557 241.66      
32 A 498 475 13.50      
33 A 455 434 36.13      
34 A 395 377 98.80      
35 A 359 343 1.63      
36 A 256 245 7.24      
37 A 233 223 3.04      
38 A 198 189 115.62      
39 A 117 112 17.78      

Unscaled Zero Point Vibrational Energy (zpe) 30450.1 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 29076.8 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 B1B95/3-21G*
ABC
0.26867 0.11771 0.09018

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.412 1.379 -0.198
H2 -0.455 1.840 0.085
H3 1.214 1.955 0.065
N4 -2.020 -0.145 0.017
H5 -2.183 0.671 -0.567
H6 -2.258 0.018 0.994
C7 -0.708 -0.763 -0.194
H8 -0.712 -1.772 0.235
H9 -0.551 -0.846 -1.273
C10 1.796 -0.623 -0.057
H11 1.840 -1.667 0.267
H12 1.859 -0.576 -1.148
H13 2.658 -0.095 0.364
C14 0.484 0.025 0.378
H15 0.416 0.004 1.483

Atom - Atom Distances (Å)
  N1 H2 H3 N4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14 H15
N11.02251.02212.87752.71443.22462.41703.37232.65202.43733.39582.61122.74401.47292.1717
H21.02251.67322.52862.18572.71952.63073.62413.01223.33994.19563.56623.67592.06492.4668
H31.02211.67323.85603.68574.08253.33934.19813.57112.64563.68132.88022.52492.08722.5411
N42.87752.52863.85601.01681.01811.46512.09862.07703.84604.15674.07274.69052.53532.8463
H52.71442.18573.68571.01681.69382.09032.96192.33724.21444.72714.26934.98802.90203.3763
H63.22462.71954.08251.01811.69382.10242.48342.96604.23604.48964.67814.95672.80972.7175
C72.41702.63073.33931.46512.09032.10241.09581.09392.51182.74322.74513.47681.53952.1595
H83.37233.62414.19812.09862.96192.48341.09581.77652.77342.55423.15403.76582.16272.4453
H92.65203.01223.57112.07702.33722.96601.09391.77652.65252.96072.42823.67972.13493.0419
C102.43733.33992.64563.84604.21444.23602.51182.77342.65251.09431.09341.09501.52652.1610
H113.39584.19563.68134.15674.72714.48962.74322.55422.96071.09431.78681.77462.17122.5095
H122.61123.56622.88024.07274.26934.67812.74513.15402.42821.09341.78681.77622.14043.0564
H132.74403.67592.52494.69054.98804.95673.47683.76583.67971.09501.77461.77622.17712.5080
C141.47292.06492.08722.53532.90202.80971.53952.16272.13491.52652.17122.14042.17711.1071
H152.17172.46682.54112.84633.37632.71752.15952.44533.04192.16102.50953.05642.50801.1071

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 106.686 N1 C14 C10 108.686
N1 C14 H15 113.900 H2 N1 H3 109.839
H2 N1 C14 110.373 H3 N1 C14 112.293
N4 C7 H8 109.225 N4 C7 H9 107.638
N4 C7 C14 115.064 H5 N4 H6 112.689
H5 N4 C7 113.522 H6 N4 C7 114.501
C7 C14 C10 110.013 C7 C14 H15 108.250
H8 C7 H9 108.456 H8 C7 C14 109.146
H9 C7 C14 107.112 C10 C14 H15 109.250
H11 C10 H12 109.523 H11 C10 H13 108.304
H11 C10 C14 110.799 H12 C10 H13 108.513
H12 C10 C14 108.439 H13 C10 C14 111.225
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.673      
2 H 0.256      
3 H 0.274      
4 N -0.696      
5 H 0.284      
6 H 0.275      
7 C -0.210      
8 H 0.203      
9 H 0.225      
10 C -0.579      
11 H 0.200      
12 H 0.220      
13 H 0.197      
14 C -0.145      
15 H 0.170      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.616 1.298 1.633 2.175
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.229 -2.968 -0.913
y -2.968 -30.510 1.431
z -0.913 1.431 -32.872
Traceless
 xyz
x -2.538 -2.968 -0.913
y -2.968 3.041 1.431
z -0.913 1.431 -0.503
Polar
3z2-r2-1.006
x2-y2-3.719
xy-2.968
xz-0.913
yz1.431


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.081 -0.286 -0.120
y -0.286 6.515 -0.214
z -0.120 -0.214 5.613


<r2> (average value of r2) Å2
<r2> 142.265
(<r2>)1/2 11.927