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 CH3C6H4CH3 (meta-xylene)

using model chemistry: B97D3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-31+G**
 hartrees
Energy at 0K-310.699178
Energy at 298.15K 
HF Energy-310.699178
Nuclear repulsion energy339.124232
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 B97D3/6-31+G**
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' 3140 3086 32.47      
2 A' 3122 3068 35.86      
3 A' 3113 3060 1.01      
4 A' 3103 3050 30.92      
5 A' 3072 3019 22.74      
6 A' 3070 3018 19.21      
7 A' 2982 2931 21.04      
8 A' 2981 2930 68.55      
9 A' 1617 1589 23.00      
10 A' 1598 1571 3.85      
11 A' 1496 1470 14.92      
12 A' 1481 1456 18.24      
13 A' 1465 1440 0.84      
14 A' 1423 1399 0.15      
15 A' 1389 1365 0.54      
16 A' 1386 1362 0.75      
17 A' 1351 1328 0.29      
18 A' 1306 1283 0.29      
19 A' 1248 1226 0.91      
20 A' 1177 1157 1.34      
21 A' 1160 1140 0.03      
22 A' 1103 1084 4.83      
23 A' 1018 1000 1.42      
24 A' 993 976 0.27      
25 A' 982 965 3.71      
26 A' 904 889 3.26      
27 A' 723 710 0.05      
28 A' 532 523 0.09      
29 A' 512 504 0.60      
30 A' 399 392 0.36      
31 A' 270 266 0.55      
32 A" 3042 2990 26.85      
33 A" 3042 2990 13.74      
34 A" 1462 1437 0.05      
35 A" 1462 1437 13.00      
36 A" 1036 1019 0.01      
37 A" 1035 1017 5.72      
38 A" 946 929 0.05      
39 A" 870 855 0.00      
40 A" 863 848 3.22      
41 A" 754 741 43.23      
42 A" 683 671 12.30      
43 A" 512 503 0.01      
44 A" 427 420 5.46      
45 A" 213 209 0.01      
46 A" 189 186 4.51      
47 A" 29i 28i 0.30      
48 A" 47i 47i 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 33287.2 cm-1
Scaled (by 0.9828) Zero Point Vibrational Energy (zpe) 32714.6 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 B97D3/6-31+G**
ABC
0.11799 0.05816 0.03954

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.227 0.273 0.000
C2 0.000 0.955 0.000
C3 -1.233 0.272 0.000
C4 -1.219 -1.132 0.000
C5 -0.001 -1.832 0.000
C6 1.212 -1.136 0.000
C7 2.541 1.025 0.000
C8 -2.533 1.047 0.000
H9 -0.001 2.047 0.000
H10 -2.162 -1.682 0.000
H11 -0.003 -2.923 0.000
H12 2.156 -1.685 0.000
H13 3.143 0.772 0.885
H14 2.381 2.111 0.000
H15 3.143 0.772 -0.885
H16 -2.609 1.695 0.885
H17 -3.400 0.373 0.000
H18 -2.609 1.695 -0.885

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18
C11.40372.46042.82152.43781.40981.51363.83942.15733.91253.42472.16712.16832.17022.16834.18614.62854.1861
C21.40371.40952.41692.78662.41692.54192.53511.09263.40923.87723.40783.27032.64753.27032.85293.44942.8529
C32.46041.40951.40422.43782.82173.84851.51372.16142.16293.42293.91304.49264.05574.49262.16872.16942.1687
C42.82152.41691.40421.40432.43124.33512.54473.40511.09102.16403.41974.84124.84614.84123.27282.65043.2728
C52.43782.78662.43781.40431.39893.82483.83373.87922.16551.09062.16224.17754.60734.17754.47494.05154.4749
C61.40982.41692.82172.43121.39892.53754.33523.40673.41772.16051.09142.85543.45172.85544.83774.85314.8377
C71.51362.54193.84854.33513.82482.53755.07432.73915.42614.69682.73751.10001.09751.10005.26825.97675.2682
C83.83942.53511.51372.54473.83374.33525.07432.72342.75344.70705.42665.75145.02885.75141.10001.09741.1000
H92.15731.09262.16143.40513.87923.40672.73912.72344.30994.96984.31013.50582.38283.50582.77703.78932.7770
H103.91253.40922.16291.09102.16553.41775.42612.75344.30992.48984.31745.91135.91835.91133.51952.39933.5195
H113.42473.87723.42292.16401.09062.16054.69684.70704.96982.48982.48864.93285.57014.93285.37574.73315.3757
H122.16713.40783.91303.41972.16221.09142.73755.42664.31014.31742.48862.79183.80282.79185.90865.92485.9086
H132.16833.27034.49264.84124.17752.85541.10005.75143.50585.91134.93282.79181.77671.77025.82566.61466.0886
H142.17022.64754.05574.84614.60733.45171.09755.02882.38285.91835.57013.80281.77671.77675.08546.03715.0854
H152.16833.27034.49264.84124.17752.85541.10005.75143.50585.91134.93282.79181.77021.77676.08866.61465.8256
H164.18612.85292.16873.27284.47494.83775.26821.10002.77703.51955.37575.90865.82565.08546.08861.77671.7704
H174.62853.44942.16942.65044.05154.85315.97671.09743.78932.39934.73315.92486.61466.03716.61461.77671.7767
H184.18612.85292.16873.27284.47494.83775.26821.10002.77703.51955.37575.90866.08865.08545.82561.77041.7767

picture of meta-xylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 122.030 C1 C2 H9 119.055
C1 C6 C5 120.459 C1 C6 H12 119.542
C1 C7 H13 111.136 C1 C7 H14 111.466
C1 C7 H15 111.136 C2 C1 C6 118.374
C2 C1 C7 121.228 C2 C3 C4 118.378
C2 C3 C8 120.235 C3 C2 H9 118.914
C3 C4 C5 120.464 C3 C4 H10 119.674
C3 C8 H16 111.154 C3 C8 H17 111.420
C3 C8 H18 111.154 C4 C3 C8 121.386
C4 C5 C6 120.294 C4 C5 H11 119.777
C5 C4 H10 119.862 C5 C6 H12 119.999
C6 C1 C7 120.398 C6 C5 H11 119.929
H13 C7 H14 107.876 H13 C7 H15 107.164
H14 C7 H15 107.876 H16 C8 H17 107.872
H16 C8 H18 107.183 H17 C8 H18 107.872
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.480      
2 C -0.329      
3 C 0.340      
4 C -0.511      
5 C -0.030      
6 C -0.133      
7 C -0.644      
8 C -0.659      
9 H 0.119      
10 H 0.125      
11 H 0.130      
12 H 0.127      
13 H 0.168      
14 H 0.155      
15 H 0.168      
16 H 0.168      
17 H 0.155      
18 H 0.168      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.054 0.393 0.000 0.397
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.771 -0.141 0.000
y -0.141 -45.978 0.000
z 0.000 0.000 -52.616
Traceless
 xyz
x 4.526 -0.141 0.000
y -0.141 2.715 0.000
z 0.000 0.000 -7.241
Polar
3z2-r2-14.482
x2-y21.208
xy-0.141
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 17.781 -0.122 0.000
y -0.122 15.586 0.000
z 0.000 0.000 8.936


<r2> (average value of r2) Å2
<r2> 290.798
(<r2>)1/2 17.053