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All results from a given calculation for NH(C2H5)2 (diethylamine)

using model chemistry: QCISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/3-21G*
 hartrees
Energy at 0K-211.673293
Energy at 298.15K-211.685968
HF Energy-211.134702
Nuclear repulsion energy185.645377
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 QCISD/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' 3354 3224 5.44      
2 A' 3112 2991 41.44      
3 A' 3087 2967 61.59      
4 A' 3047 2929 33.14      
5 A' 3026 2909 10.80      
6 A' 2934 2819 126.63      
7 A' 1602 1540 0.49      
8 A' 1581 1520 2.78      
9 A' 1570 1509 11.51      
10 A' 1468 1411 5.23      
11 A' 1444 1388 0.41      
12 A' 1352 1300 1.81      
13 A' 1273 1223 3.68      
14 A' 1176 1131 6.76      
15 A' 1017 977 0.13      
16 A' 929 893 16.73      
17 A' 854 821 4.24      
18 A' 736 707 83.31      
19 A' 419 402 0.32      
20 A' 262 252 1.51      
21 A' 184 177 1.17      
22 A' 104 100 1.73      
23 A" 3112 2991 7.58      
24 A" 3086 2966 17.65      
25 A" 3044 2925 1.78      
26 A" 3026 2908 22.60      
27 A" 2930 2816 6.27      
28 A" 1593 1531 2.06      
29 A" 1580 1518 2.34      
30 A" 1573 1512 4.64      
31 A" 1523 1463 9.19      
32 A" 1466 1409 9.21      
33 A" 1391 1337 31.29      
34 A" 1332 1280 5.48      
35 A" 1149 1104 1.82      
36 A" 1123 1079 51.52      
37 A" 1073 1032 2.30      
38 A" 922 887 0.21      
39 A" 843 810 1.19      
40 A" 420 403 1.41      
41 A" 259 249 0.98      
42 A" 118 114 1.48      

Unscaled Zero Point Vibrational Energy (zpe) 33045.6 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 31760.2 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 QCISD/3-21G*
ABC
0.56417 0.06824 0.06414

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.017 -0.284 0.000
C2 0.017 0.543 1.248
C3 0.017 0.543 -1.248
C4 0.017 -0.390 2.484
C5 0.017 -0.390 -2.484
H6 -0.811 -0.898 0.000
H7 -0.839 1.247 1.303
H8 0.938 1.145 1.237
H9 -0.839 1.247 -1.303
H10 0.938 1.145 -1.237
H11 0.093 0.191 3.414
H12 -0.912 -0.980 2.519
H13 0.867 -1.080 2.412
H14 0.093 0.191 -3.414
H15 -0.912 -0.980 -2.519
H16 0.867 -1.080 -2.412

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
N11.49691.49692.48652.48651.03072.18502.10282.18502.10283.44792.77342.67883.44792.77342.6788
C21.49692.49511.54913.84662.07811.10921.10022.78062.71762.19622.19052.17104.67554.16764.0929
C31.49692.49513.84661.54912.07812.78062.71761.10921.10024.67554.16764.09292.19622.19052.1710
C42.48651.54913.84664.96842.66742.19262.18134.21354.12971.09931.10061.09745.92745.12285.0176
C52.48653.84661.54914.96842.66744.21354.12972.19262.18135.92745.12285.01761.09931.10061.0974
H61.03072.07812.07812.66742.66742.51012.96032.51012.96033.69612.52242.94463.69612.52242.9446
H72.18501.10922.78062.19264.21352.51011.78032.60563.10132.53792.53893.09124.92264.42424.7040
H82.10281.10022.71762.18134.12972.96031.78033.10132.47482.52183.09482.51674.82274.69544.2749
H92.18502.78061.10924.21352.19262.51012.60563.10131.78034.92264.42424.70402.53792.53893.0912
H102.10282.71761.10024.12972.18132.96033.10132.47481.78034.82274.69544.27492.52183.09482.5167
H113.44792.19624.67551.09935.92743.69612.53792.52184.92264.82271.78421.79376.82826.13076.0135
H122.77342.19054.16761.10065.12282.52242.53893.09484.42424.69541.78421.78496.13075.03825.2435
H132.67882.17104.09291.09745.01762.94463.09122.51674.70404.27491.79371.78496.01355.24354.8249
H143.44794.67552.19625.92741.09933.69614.92264.82272.53792.52186.82826.13076.01351.78421.7937
H152.77344.16762.19055.12281.10062.52244.42424.69542.53893.09486.13075.03825.24351.78421.7849
H162.67884.09292.17105.01761.09742.94464.70404.27493.09122.51676.01355.24354.82491.79371.7849

picture of diethylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C4 109.422 N1 C2 H7 113.107
N1 C2 H8 107.136 N1 C3 C5 109.422
N1 C3 H9 113.107 N1 C3 H10 107.136
C2 N1 C3 112.902 C2 N1 H6 109.215
C2 C4 H11 110.908 C2 C4 H12 110.377
C2 C4 H13 109.043 C3 N1 H6 109.215
C3 C5 H14 110.908 C3 C5 H15 110.377
C3 C5 H16 109.043 C4 C2 H7 110.035
C4 C2 H8 109.679 C5 C3 H8 149.695
C5 C3 H10 109.679 H7 C2 H8 107.367
H9 C3 H10 107.367 H11 C4 H12 108.396
H11 C4 H13 109.485 H12 C4 H13 108.593
H14 C5 H15 108.396 H14 C5 H16 109.485
H15 C5 H16 108.593
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability