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All results from a given calculation for CH2(OH)2 (methanediol)

using model chemistry: HSEh1PBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HSEh1PBE/3-21G*
 hartrees
Energy at 0K-189.685946
Energy at 298.15K-189.691207
HF Energy-189.685946
Nuclear repulsion energy80.019206
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 HSEh1PBE/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 3534 3393 1.08      
2 A 3059 2936 63.40      
3 A 1579 1516 0.53      
4 A 1424 1367 2.84      
5 A 1223 1174 1.98      
6 A 991 951 108.91      
7 A 574 551 138.20      
8 A 395 379 23.72      
9 B 3536 3394 2.48      
10 B 3106 2981 60.60      
11 B 1453 1395 43.73      
12 B 1391 1335 22.77      
13 B 1058 1015 176.07      
14 B 1009 969 43.38      
15 B 415 398 236.19      

Unscaled Zero Point Vibrational Energy (zpe) 12372.5 cm-1
Scaled (by 0.9599) Zero Point Vibrational Energy (zpe) 11876.4 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 HSEh1PBE/3-21G*
ABC
1.35788 0.32737 0.28983

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.540
O2 0.000 1.196 -0.248
O3 0.000 -1.196 -0.248
H4 -0.889 -0.099 1.173
H5 0.889 0.099 1.173
H6 -0.818 1.181 -0.809
H7 0.818 -1.181 -0.809

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.43171.43171.09531.09531.97031.9703
O21.43172.39112.11732.00260.99202.5750
O31.43172.39112.00262.11732.57500.9920
H41.09532.11732.00261.78812.35952.8301
H51.09532.00262.11731.78812.83012.3595
H61.97030.99202.57502.35952.83012.8733
H71.97032.57500.99202.83012.35952.8733

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 107.368 C1 O3 H7 107.368
O2 C1 O3 113.236 O2 C1 H4 113.151
O2 C1 H5 104.041 O3 C1 H4 104.041
O3 C1 H5 113.151 H4 C1 H5 109.414
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.026      
2 O -0.579      
3 O -0.579      
4 H 0.215      
5 H 0.215      
6 H 0.352      
7 H 0.352      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.324 0.324
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.355 -3.737 0.000
y -3.737 -22.470 0.000
z 0.000 0.000 -15.597
Traceless
 xyz
x 3.679 -3.737 0.000
y -3.737 -6.995 0.000
z 0.000 0.000 3.316
Polar
3z2-r26.632
x2-y27.116
xy-3.737
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.512 -0.175 0.000
y -0.175 2.489 0.000
z 0.000 0.000 2.496


<r2> (average value of r2) Å2
<r2> 46.507
(<r2>)1/2 6.820