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: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-211.465276
Energy at 298.15K-211.472534
HF Energy-211.465276
Nuclear repulsion energy159.239810
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 B3LYP/aug-cc-pVTZ
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' 3114 3013 20.03      
2 A' 3108 3007 33.52      
3 A' 3041 2942 16.87      
4 A' 3026 2928 2.83      
5 A' 2344 2268 12.42      
6 A' 1512 1463 9.75      
7 A' 1502 1453 8.72      
8 A' 1427 1381 2.38      
9 A' 1353 1309 6.29      
10 A' 1195 1156 3.08      
11 A' 1131 1094 4.01      
12 A' 923 893 0.54      
13 A' 768 743 0.57      
14 A' 554 536 1.24      
15 A' 353 342 0.27      
16 A' 282 273 1.25      
17 A' 219 212 2.14      
18 A" 3113 3011 13.30      
19 A" 3103 3003 0.14      
20 A" 3038 2939 15.39      
21 A" 1491 1443 2.54      
22 A" 1490 1442 1.62      
23 A" 1406 1361 3.48      
24 A" 1324 1281 0.39      
25 A" 1123 1087 2.88      
26 A" 972 940 0.02      
27 A" 943 912 1.66      
28 A" 577 558 0.00      
29 A" 222 215 0.02      
30 A" 190 184 5.01      

Unscaled Zero Point Vibrational Energy (zpe) 22421.6 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 21692.9 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 B3LYP/aug-cc-pVTZ
ABC
0.26473 0.13251 0.09666

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.398 -2.174 0.000
C2 0.027 -1.085 0.000
C3 -0.434 0.307 0.000
C4 0.027 1.028 1.277
C5 0.027 1.028 -1.277
H6 -1.527 0.267 0.000
H7 -0.368 2.044 1.286
H8 -0.322 0.513 2.170
H9 1.115 1.083 1.317
H10 -0.368 2.044 -1.286
H11 -0.322 0.513 -2.170
H12 1.115 1.083 -1.317

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.15042.61703.46703.46703.10844.47553.52813.58554.47553.52813.5855
C21.15041.46662.46872.46872.05973.40572.71742.75993.40572.71742.7599
C32.61701.46661.53681.53681.09362.16182.18262.17602.16182.18262.1760
C43.46702.46871.53682.55302.15031.09001.08881.08992.78493.50222.8128
C53.46702.46871.53682.55302.15032.78493.50222.81281.09001.08881.0899
H63.10842.05971.09362.15032.15032.48052.49423.06252.48052.49423.0625
H74.47553.40572.16181.09002.78492.48051.76801.76772.57243.78023.1464
H83.52812.71742.18261.08883.50222.49421.76801.76573.78024.34003.8142
H93.58552.75992.17601.08992.81283.06251.76771.76573.14643.81422.6337
H104.47553.40572.16182.78491.09002.48052.57243.78023.14641.76801.7677
H113.52812.71742.18263.50221.08882.49423.78024.34003.81421.76801.7657
H123.58552.75992.17602.81281.08993.06253.14643.81422.63371.76771.7657

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 179.526 C2 C3 C4 110.542
C2 C3 C5 110.542 C2 C3 H6 106.206
C3 C4 H7 109.598 C3 C4 H8 111.315
C3 C4 H9 110.723 C3 C5 H10 109.598
C3 C5 H11 111.315 C3 C5 H12 110.723
C4 C3 C5 112.330 C4 C3 H6 108.494
C5 C3 H6 108.494 H7 C4 H8 108.480
H7 C4 H9 108.371 H8 C4 H9 108.274
H10 C5 H11 108.480 H10 C5 H12 108.371
H11 C5 H12 108.274
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.631      
2 C 0.265      
3 C 0.549      
4 C -0.760      
5 C -0.760      
6 H 0.149      
7 H 0.190      
8 H 0.191      
9 H 0.213      
10 H 0.190      
11 H 0.191      
12 H 0.213      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.194 4.006 0.000 4.180
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.972 1.810 0.000
y 1.810 -40.099 0.000
z 0.000 0.000 -30.460
Traceless
 xyz
x 4.307 1.810 0.000
y 1.810 -9.383 0.000
z 0.000 0.000 5.076
Polar
3z2-r210.152
x2-y29.126
xy1.810
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.880 -0.523 0.000
y -0.523 9.506 0.000
z 0.000 0.000 7.765


<r2> (average value of r2) Å2
<r2> 129.128
(<r2>)1/2 11.363