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 CH3CH(CH3)CN (Propanenitrile, 2-methyl-)

using model chemistry: CCD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/cc-pVDZ
 hartrees
Energy at 0K-210.765574
Energy at 298.15K-210.772861
HF Energy-210.010882
Nuclear repulsion energy157.882992
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 CCD/cc-pVDZ
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' 3172 3034 19.60      
2 A' 3166 3029 35.64      
3 A' 3088 2955 5.94      
4 A' 3075 2942 14.72      
5 A' 2356 2254 0.36      
6 A' 1511 1445 7.79      
7 A' 1501 1436 6.78      
8 A' 1432 1370 2.26      
9 A' 1368 1309 7.95      
10 A' 1208 1155 2.22      
11 A' 1136 1087 3.55      
12 A' 955 914 0.21      
13 A' 784 750 1.05      
14 A' 545 521 0.74      
15 A' 355 339 0.17      
16 A' 293 280 0.66      
17 A' 223 213 1.97      
18 A" 3170 3033 12.61      
19 A" 3162 3025 0.02      
20 A" 3073 2940 17.01      
21 A" 1491 1426 2.53      
22 A" 1488 1424 0.36      
23 A" 1413 1352 1.98      
24 A" 1346 1288 0.82      
25 A" 1161 1111 2.11      
26 A" 987 945 0.40      
27 A" 941 900 1.18      
28 A" 563 538 0.10      
29 A" 233 223 0.01      
30 A" 187 179 4.03      

Unscaled Zero Point Vibrational Energy (zpe) 22691.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 21709.0 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 CCD/cc-pVDZ
ABC
0.26295 0.12980 0.09527

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.410 -2.197 0.000
C2 0.027 -1.093 0.000
C3 -0.444 0.316 0.000
C4 0.027 1.036 1.278
C5 0.027 1.036 -1.278
H6 -1.550 0.276 0.000
H7 -0.365 2.069 1.288
H8 -0.330 0.517 2.183
H9 1.129 1.080 1.312
H10 -0.365 2.069 -1.288
H11 -0.330 0.517 -2.183
H12 1.129 1.080 -1.312

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.16842.65423.49733.49733.15504.52233.56043.60254.52233.56043.6025
C21.16841.48592.48312.48312.08783.43612.73582.76783.43612.73582.7678
C32.65421.48591.54021.54021.10622.17602.19542.18692.17602.19542.1869
C43.49732.48311.54022.55512.16691.10401.10311.10442.79273.51762.8153
C53.49732.48311.54022.55512.16692.79273.51762.81531.10401.10311.1044
H63.15502.08781.10622.16692.16692.50542.51273.09002.50542.51273.0900
H74.52233.43612.17601.10402.79272.50541.79201.79162.57533.80213.1574
H83.56042.73582.19541.10313.51762.51271.79201.79013.80214.36643.8294
H93.60252.76782.18691.10442.81533.09001.79161.79013.15743.82942.6246
H104.52233.43612.17602.79271.10402.50542.57533.80213.15741.79201.7916
H113.56042.73582.19543.51761.10312.51273.80214.36643.82941.79201.7901
H123.60252.76782.18692.81531.10443.09003.15743.82942.62461.79161.7901

picture of Propanenitrile, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 179.328 C2 C3 C4 110.271
C2 C3 C5 110.271 C2 C3 H6 106.382
C3 C4 H7 109.659 C3 C4 H8 111.233
C3 C4 H9 110.489 C3 C5 H10 109.659
C3 C5 H11 111.233 C3 C5 H12 110.489
C4 C3 C5 112.087 C4 C3 H6 108.822
C5 C3 H6 108.822 H7 C4 H8 108.570
H7 C4 H9 108.444 H8 C4 H9 108.375
H10 C5 H11 108.570 H10 C5 H12 108.444
H11 C5 H12 108.375
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability