return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-229.718755
Energy at 298.15K-229.731237
Nuclear repulsion energy195.872947
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 B1B95/6-31G**
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 3620 3456 0.05      
2 A 3608 3445 0.31      
3 A 3523 3363 2.05      
4 A 3519 3360 0.94      
5 A 3152 3009 25.22      
6 A 3137 2995 29.95      
7 A 3109 2968 29.31      
8 A 3059 2921 34.09      
9 A 3054 2916 27.95      
10 A 2929 2797 84.39      
11 A 1667 1592 3.84      
12 A 1653 1579 59.18      
13 A 1508 1440 2.36      
14 A 1496 1428 5.08      
15 A 1480 1413 0.51      
16 A 1426 1361 2.21      
17 A 1410 1346 16.17      
18 A 1397 1334 3.83      
19 A 1378 1316 8.79      
20 A 1341 1280 10.80      
21 A 1265 1208 1.15      
22 A 1209 1154 3.91      
23 A 1181 1128 6.16      
24 A 1132 1081 12.71      
25 A 1049 1002 10.78      
26 A 1030 983 1.20      
27 A 962 919 8.75      
28 A 906 865 81.66      
29 A 880 840 73.78      
30 A 841 803 88.13      
31 A 792 757 104.65      
32 A 492 470 2.76      
33 A 464 443 22.22      
34 A 373 356 59.84      
35 A 360 344 0.82      
36 A 262 250 12.32      
37 A 240 229 34.97      
38 A 225 215 18.59      
39 A 116 111 8.47      

Unscaled Zero Point Vibrational Energy (zpe) 30621.5 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 29237.4 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 B1B95/6-31G**
ABC
0.26865 0.11799 0.09003

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.455 1.379 -0.219
H2 -0.329 1.895 0.167
H3 1.288 1.884 0.069
N4 -2.039 -0.138 0.017
H5 -2.101 0.734 -0.497
H6 -2.180 0.076 0.999
C7 -0.734 -0.741 -0.195
H8 -0.737 -1.743 0.250
H9 -0.598 -0.870 -1.274
C10 1.769 -0.658 -0.040
H11 1.785 -1.690 0.321
H12 1.878 -0.666 -1.127
H13 2.637 -0.144 0.384
C14 0.472 0.033 0.346
H15 0.397 0.035 1.450

Atom - Atom Distances (Å)
  N1 H2 H3 N4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14 H15
N11.01501.01492.92882.65133.18242.43143.37462.69902.43073.38772.65212.72841.46032.1440
H21.01501.61972.66042.21982.72512.69173.66143.12983.31104.16453.62043.60622.03512.3735
H31.01491.61973.89283.62294.01963.32374.15723.59822.58943.61672.87812.45642.04162.4738
N42.92882.66043.89281.01411.01521.45342.07962.06813.84334.13774.11474.69012.53792.8312
H52.65132.21983.62291.01411.63582.03452.92492.33184.13834.65254.26564.89882.79703.2433
H63.18242.72514.01961.01521.63582.04642.44022.92674.14904.39354.64164.86162.73182.6165
C72.43142.69173.32371.45342.03452.04641.09581.09502.50872.74012.77423.47161.53162.1419
H83.37463.66144.15722.07962.92492.44021.09581.76162.74562.52333.14543.73562.15002.4261
H92.69903.12983.59822.06812.33182.92671.09501.76162.67832.98252.48953.70722.14173.0385
C102.43073.31102.58943.84334.13834.14902.50872.74562.67831.09271.09311.09391.51932.1409
H113.38774.16453.61674.13774.65254.39352.74012.52332.98251.09271.77541.76562.16602.4857
H122.65213.62042.87814.11474.26564.64162.77423.14542.48951.09311.77541.76932.15353.0547
H132.72843.60622.45644.69014.89884.86163.47163.73563.70721.09391.76561.76932.17272.4880
C141.46032.03512.04162.53792.79702.73181.53162.15002.14171.51932.16602.15352.17271.1068
H152.14402.37352.47382.83123.24332.61652.14192.42613.03852.14092.48573.05472.48801.1068

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 108.691 N1 C14 C10 109.312
N1 C14 H15 112.546 H2 N1 H3 105.864
H2 N1 C14 109.280 H3 N1 C14 109.836
N4 C7 H8 108.519 N4 C7 H9 107.657
N4 C7 C14 116.445 H5 N4 H6 107.431
H5 N4 C7 109.797 H6 N4 C7 110.737
C7 C14 C10 110.626 C7 C14 H15 107.460
H8 C7 H9 107.043 H8 C7 C14 108.702
H9 C7 C14 108.097 C10 C14 H15 108.200
H11 C10 H12 108.627 H11 C10 H13 107.702
H11 C10 C14 110.990 H12 C10 H13 107.994
H12 C10 C14 109.966 H13 C10 C14 111.455
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.609      
2 H 0.232      
3 H 0.248      
4 N -0.621      
5 H 0.252      
6 H 0.241      
7 C -0.069      
8 H 0.113      
9 H 0.127      
10 C -0.356      
11 H 0.120      
12 H 0.134      
13 H 0.112      
14 C -0.006      
15 H 0.082      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.988 1.164 1.684 2.273
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.293 -2.712 -0.937
y -2.712 -30.677 1.692
z -0.937 1.692 -33.014
Traceless
 xyz
x -3.448 -2.712 -0.937
y -2.712 3.477 1.692
z -0.937 1.692 -0.029
Polar
3z2-r2-0.058
x2-y2-4.616
xy-2.712
xz-0.937
yz1.692


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.735 -0.236 -0.120
y -0.236 7.165 -0.076
z -0.120 -0.076 6.247


<r2> (average value of r2) Å2
<r2> 142.188
(<r2>)1/2 11.924