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

using model chemistry: CISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/6-31G*
 hartrees
Energy at 0K-212.938882
Energy at 298.15K-212.951791
HF Energy-212.313755
Nuclear repulsion energy189.120397
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 CISD/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 3352 0.37      
2 A' 3251 3009 50.18      
3 A' 3228 2988 73.17      
4 A' 3180 2944 49.36      
5 A' 3157 2923 15.21      
6 A' 3071 2843 153.61      
7 A' 1629 1508 0.42      
8 A' 1596 1477 2.89      
9 A' 1587 1469 11.53      
10 A' 1530 1416 2.78      
11 A' 1487 1377 0.47      
12 A' 1397 1293 4.71      
13 A' 1310 1213 2.16      
14 A' 1241 1149 17.71      
15 A' 1126 1042 5.81      
16 A' 955 884 8.56      
17 A' 874 810 5.89      
18 A' 827 766 78.14      
19 A' 446 413 0.44      
20 A' 275 255 1.48      
21 A' 197 182 0.95      
22 A' 119 110 1.64      
23 A" 3251 3009 8.94      
24 A" 3227 2988 20.15      
25 A" 3175 2939 0.71      
26 A" 3156 2922 30.50      
27 A" 3065 2837 6.98      
28 A" 1618 1497 6.78      
29 A" 1604 1485 14.65      
30 A" 1592 1474 7.34      
31 A" 1575 1458 22.66      
32 A" 1511 1398 12.30      
33 A" 1445 1338 24.98      
34 A" 1359 1258 3.10      
35 A" 1239 1147 42.03      
36 A" 1181 1094 8.07      
37 A" 1129 1045 3.38      
38 A" 999 925 0.25      
39 A" 850 787 0.55      
40 A" 449 416 0.56      
41 A" 275 255 0.66      
42 A" 116 107 1.25      

Unscaled Zero Point Vibrational Energy (zpe) 34457.9 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 31901.1 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 CISD/6-31G*
ABC
0.59436 0.07064 0.06655

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.017 -0.279 0.000
C2 0.017 0.519 1.214
C3 0.017 0.519 -1.214
C4 0.017 -0.373 2.443
C5 0.017 -0.373 -2.443
H6 -0.800 -0.878 0.000
H7 -0.831 1.217 1.259
H8 0.920 1.131 1.208
H9 -0.831 1.217 -1.259
H10 0.920 1.131 -1.208
H11 0.054 0.220 3.356
H12 -0.885 -0.985 2.482
H13 0.876 -1.040 2.424
H14 0.054 0.220 -3.356
H15 -0.885 -0.985 -2.482
H16 0.876 -1.040 -2.424

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
N11.45301.45302.44522.44521.01252.13192.06462.13192.06463.39312.73412.68253.39312.73412.6825
C21.45302.42871.51873.76502.02271.09971.09112.70682.65652.16262.16432.15264.58024.09184.0509
C31.45302.42873.76501.51872.02272.70682.65651.09971.09114.58024.09184.05092.16262.16432.1526
C42.44521.51873.76504.88692.62522.15672.14594.11834.05091.08931.09081.08805.82985.04514.9880
C52.44523.76501.51874.88692.62524.11834.05092.15672.14595.82985.04514.98801.08931.09081.0880
H61.01252.02272.02272.62522.62522.44442.90702.44442.90703.63272.48632.95193.63272.48632.9519
H72.13191.09972.70682.15674.11832.44441.75442.51893.02692.48452.51993.06094.80414.34244.6458
H82.06461.09112.65652.14594.05092.90701.75443.02692.41562.48873.05972.48914.73364.62124.2318
H92.13192.70681.09974.11832.15672.44442.51893.02691.75444.80414.34244.64582.48452.51993.0609
H102.06462.65651.09114.05092.14592.90703.02692.41561.75444.73364.62124.23182.48873.05972.4891
H113.39312.16264.58021.08935.82983.63272.48452.48874.80414.73361.76031.77016.71196.03515.9732
H122.73412.16434.09181.09085.04512.48632.51993.05974.34244.62121.76031.76336.03514.96505.2138
H132.68252.15264.05091.08804.98802.95193.06092.48914.64584.23181.77011.76335.97325.21384.8489
H143.39314.58022.16265.82981.08933.63274.80414.73362.48452.48876.71196.03515.97321.76031.7701
H152.73414.09182.16435.04511.09082.48634.34244.62122.51993.05976.03514.96505.21381.76031.7633
H162.68254.05092.15264.98801.08802.95194.64584.23183.06092.48915.97325.21384.84891.77011.7633

picture of diethylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C4 110.717 N1 C2 H7 112.523
N1 C2 H8 107.638 N1 C3 C5 110.717
N1 C3 H9 112.523 N1 C3 H10 107.638
C2 N1 C3 113.382 C2 N1 H6 108.938
C2 C4 H11 110.964 C2 C4 H12 111.011
C2 C4 H13 110.242 C3 N1 H6 108.938
C3 C5 H14 110.964 C3 C5 H15 111.011
C3 C5 H16 110.242 C4 C2 H7 109.870
C4 C2 H8 109.532 C5 C3 H8 150.833
C5 C3 H10 109.532 H7 C2 H8 106.413
H9 C3 H10 106.413 H11 C4 H12 107.691
H11 C4 H13 108.778 H12 C4 H13 108.056
H14 C5 H15 107.691 H14 C5 H16 108.778
H15 C5 H16 108.056
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability