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Release 22May 2022
NIST Standard Reference Database 101
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IV.D.8.

Average Bond Length Differences by Model Chemistry

Calculated at HSEh1PBE/cc-pVDZ

Species Name Bond type Bond Length (Å)
Experimental unc. Calculated Difference atom1 atom2
C4H10O Methyl propyl ether rCC 1.530   1.102 -0.428 5 13
TiCl Titanium Monochloride rClTi 2.265 ±0.000 2.232 -0.032 1 2
C5H8O Methyl cyclopropyl ketone rCH 1.126   1.096 -0.030 3 7
ScH Scandium monohydride rScH 1.775 ±0.000 1.749 -0.026 1 2
NaF sodium fluoride rNaF 1.926 ±0.000 1.900 -0.026 1 2
C5H6 Propellane rCC 1.596 ±0.005 1.570 -0.026 2 5
C3F6 hexafluoropropene rCF 1.329 ±0.003 1.309 -0.020 1 4
FNO2 Nitryl fluoride rNF 1.467 ±0.015 1.447 -0.020 1 2
HO2 Hydroperoxy radical rOO 1.331   1.312 -0.018 1 2
C9H8 Indene rCC 1.415 ±0.170 1.397 -0.018 1 2
HNO3 Nitric acid rNO 1.406   1.388 -0.018 1 2
F2 Fluorine diatomic rFF 1.412   1.395 -0.017 1 2
CH3NH2 methyl amine rCN 1.471 ±0.003 1.454 -0.017 1 2
CH3OC2H5 Ethane, methoxy- rCO 1.415 ±0.005 1.399 -0.016 1 2
CaC Calcium monocarbide rC#Ca 2.302   2.286 -0.016 1 2
FO Oxygen monofluoride rFO 1.354   1.339 -0.015 1 2
O2+ diatomic oxygen cation rOO 1.116   1.102 -0.015 1 2
CaH Calcium monohydride rCaH 2.003 ±0.000 1.988 -0.014 1 2
C2H2O2 Ethanedial rCH 1.132   1.118 -0.014 1 3
LiOH lithium hydroxide rOH 0.969   0.956 -0.013 1 3
CH3OCH3 Dimethyl ether rCO 1.411 ±0.001 1.399 -0.012 1 2
CH3CH2CH2CH3 Butane rCH 1.117   1.105 -0.012 1 5
C5H6 Propellane rCC 1.525 ±0.002 1.513 -0.012 1 2
O2 Oxygen diatomic rO=O 1.208   1.196 -0.011 1 2
C10H8 Azulene rC:C 1.414   1.404 -0.010 7 9
CH3OCl methyl hypochlorite rCH 1.111 ±0.018 1.101 -0.010 3 4
C4H8O2 Ethyl acetate rCH 1.105   1.095 -0.010 1 7
C4H6 Bicyclo[1.1.0]butane rCC 1.497   1.488 -0.009 1 2
CF3COOH trifluoroacetic acid rCC 1.546 ±0.005 1.537 -0.009 1 2
CH2CHCH2CH3 1-Butene rCC 1.536   1.527 -0.009 1 2
C2H2O2 Ethanedial rCC 1.526   1.518 -0.008 1 2
C4H8O2 Ethyl acetate rCC 1.515   1.507 -0.008 5 6
C3H3NO Oxazole rCO 1.370 ±0.002 1.362 -0.007 1 5
CH3CH2CH2CH3 Butane rCC 1.531   1.524 -0.007 1 2
CaO Calcium monoxide rOCa 1.822   1.815 -0.007 1 2
C4H8O2 Ethyl acetate rCC 1.508   1.501 -0.007 1 2
C3H3NO Oxazole rCO 1.357 ±0.003 1.351 -0.007 1 2
H2CSe Selenoformaldehyde rC=Se 1.753   1.746 -0.007 1 2
CH3CH2CHO Propanal rCC 1.523   1.516 -0.007 1 2
NO Nitric oxide rN=O 1.154 ±0.000 1.147 -0.006 1 2
CH3CH2CHO Propanal rCC 1.509   1.503 -0.006 2 3
C5H8 Ethenylcyclopropane rCH 1.099   1.093 -0.006 1 6
FNO2 Nitryl fluoride rN=O 1.180 ±0.005 1.175 -0.005 1 3
C5H8O Methyl cyclopropyl ketone rCC 1.510   1.506 -0.004 2 3
C2H Ethynyl radical rC#C 1.217   1.213 -0.004 1 2
NO+ nitric oxide cation rN=O 1.066   1.062 -0.004 1 2
CH3CH2CHO Propanal rCH 1.103   1.100 -0.003 1 6
NH3BF3 Amminetrifluoroboron rBN 1.673   1.670 -0.003 1 2
HClO4 perchloric acid rOH 0.980   0.977 -0.003 3 6
N3 azide radical rNN 1.181   1.179 -0.003 1 2
C5H8 Ethenylcyclopropane rCC 1.475   1.473 -0.002 1 2
HOCl hypochlorous acid rOH 0.973 ±0.002 0.971 -0.002 1 2
C10H8 Azulene rC:C 1.398   1.396 -0.002 1 3
OCSe Carbonyl selenide rC=O 1.159   1.157 -0.002 1 2
CO+ carbon monoxide cation rC=O 1.115 ±0.000 1.114 -0.002 1 2
BN boron nitride rB=N 1.325   1.323 -0.002 1 2
C10H8 Azulene rC:C 1.405 ±0.001 1.403 -0.001 2 9
CH3OC2H5 Ethane, methoxy- rCO 1.407 ±0.004 1.406 -0.001 2 3
NH4+ ammonium cation rHN 1.029 ±0.000 1.029 0.000 1 2
CN Cyano radical rC#N 1.172   1.172 0.000 1 2
H2Cl+ dihydrogen monochloride cation rHCl 1.321 ±0.000 1.321 0.001 1 2
C8H8 cubane rCH 1.097   1.098 0.001 1 9
C4H8O2 Ethyl acetate rCO 1.345   1.346 0.001 2 3
BO boron monoxide rB=O 1.205   1.206 0.001 1 2
CH3CH2CHO Propanal rCH 1.105   1.107 0.002 2 8
C2H2+ acetylene cation rC=C 1.253 ±0.001 1.254 0.002 1 2
C3H6 Cyclopropane rCC 1.501   1.503 0.002 1 2
CH3NH2 methyl amine rNH 1.018 ±0.001 1.020 0.002 2 6
CH2CO Ketene rC=O 1.162   1.164 0.002 2 3
B2H6 Diborane rBH 1.200   1.202 0.002 1 5
HF+ hydrogen fluoride cation rHF 1.014   1.017 0.002 1 2
CH3CH2OH Ethanol rCH 1.098   1.101 0.003 1 6
CBr4 Carbon tetrabromide rCBr 1.942 ±0.002 1.945 0.003 1 2
C3F6 hexafluoropropene rC=C 1.329 ±0.003 1.332 0.003 1 2
HNCNH diiminomethane rC=N 1.224 ±0.001 1.227 0.003 1 2
LiNH2 lithium amide rLiN 1.736 ±0.003 1.739 0.003 1 2
H2CS Thioformaldehyde rC=S 1.611   1.614 0.003 1 2
CH2NH Methanimine rCH 1.103   1.106 0.003 1 3
SCSe Carbon sulfide selenide rC=Se 1.695 ±0.002 1.698 0.003 1 3
CH2F2 Methane, difluoro- rCF 1.351 ±0.001 1.354 0.003 1 4
CaBr Calcium monobromide rCaBr 2.594 ±0.000 2.597 0.003 1 2
HSe Selenium monohydride rSeH 1.475 ±0.010 1.478 0.003 1 2
CH3CH2CHO Propanal rCH 1.096   1.099 0.003 1 5
C4H8O2 Ethyl acetate rC=O 1.203   1.206 0.003 2 4
C3H6O 2-Propen-1-ol rCH 1.091 ±0.010 1.095 0.004 3 9
N2 Nitrogen diatomic rN#N 1.098   1.101 0.004 1 2
CO Carbon monoxide rC#O 1.128 ±0.000 1.132 0.004 1 2
As4 Arsenic tetramer rAsAs 2.435   2.439 0.004 1 2
NSe Nitrogen monoselenide rN=Se 1.652   1.656 0.004 1 2
CSe2 Carbon diselenide rC=Se 1.692 ±0.000 1.696 0.004 1 2
CH2CHCH2CH3 1-Butene rCC 1.493   1.497 0.004 2 3
OCSe Carbonyl selenide rC=Se 1.709   1.713 0.004 1 3
CH3Br methyl bromide rCBr 1.934 ±0.000 1.938 0.004 1 2
CH2PH Phosphaethene rCH 1.090 ±0.015 1.094 0.004 1 3
C3H6O 2-Propen-1-ol rCH 1.092 ±0.010 1.096 0.004 2 7
CF Fluoromethylidyne rCF 1.276   1.280 0.004 1 2
AsH Arsenic monohydride rAsH 1.535 ±0.001 1.539 0.004 1 2
CH3CCH propyne rCH 1.096   1.101 0.005 1 5
C10H8 naphthalene rC:C 1.410   1.415 0.005 2 3
CH2 Methylene rCH 1.085   1.090 0.005 1 2
CSe Carbon monoselenide rC=Se 1.676 ±0.000 1.681 0.005 1 2
CF3COOH trifluoroacetic acid rC=O 1.192 ±0.003 1.197 0.005 2 4
BeO beryllium oxide rBe=O 1.331   1.337 0.006 1 2
HCCl Chloromethylene rCH 1.119 ±0.036 1.124 0.006 1 3
CH2PH Phosphaethene rCH 1.090 ±0.015 1.096 0.006 1 4
LiOH lithium hydroxide rLiO 1.582   1.587 0.006 1 2
CH2CO Ketene rCH 1.083   1.088 0.006 1 4
CH2Br2 dibromomethane rCBr 1.925 ±0.002 1.931 0.006 1 4
HF Hydrogen fluoride rHF 0.917 ±0.000 0.923 0.006 1 2
CN- cyanide anion rC#N 1.177 ±0.004 1.183 0.006 1 2
CH3NO nitrosomethane rCH 1.094   1.100 0.006 1 4
C2H2 Acetylene rC#C 1.203   1.209 0.006 1 2
CH3CHS Thioacetaldehyde rCH 1.098   1.105 0.007 2 6
CH3CHFCH3 2-Fluoropropane rCH 1.093 ±0.006 1.100 0.007 4 8
PN Phosphorus mononitride rP#N 1.491   1.498 0.007 1 2
H2O Water rOH 0.958 ±0.000 0.965 0.007 1 2
CHF3 Methane, trifluoro- rCF 1.328 ±0.003 1.335 0.007 1 3
HS+ sulfur monohydride cation rSH 1.374   1.381 0.007 1 2
CH3CHFCH3 2-Fluoropropane rCH 1.094 ±0.005 1.101 0.007 4 10
CH3CH2CHO Propanal rCH 1.115   1.122 0.007 3 10
CH2Cl2 Methylene chloride rCCl 1.767 ±0.002 1.774 0.007 1 4
SiH2Cl2 dichlorosilane rSiH 1.480 ±0.015 1.487 0.007 1 2
ArH+ Argon hydride cation rArH 1.292 ±0.000 1.299 0.007 1 2
CH3CHS Thioacetaldehyde rCH 1.090   1.097 0.007 2 5
H2CSe Selenoformaldehyde rHC 1.090   1.098 0.008 1 3
P2 Phosphorus diatomic rP#P 1.893   1.901 0.008 1 2
NO- nitric oxide anion rN=O 1.258 ±0.010 1.266 0.008 1 2
C2H2ClF 1-chloro-1-fluoroethylene rCH 1.082 ±0.001 1.090 0.008 2 5
C4H8 cyclobutane rCH 1.093   1.101 0.008 1 5
SiC silicon monocarbide rCSi 1.722   1.730 0.008 1 2
HO2 Hydroperoxy radical rOH 0.971   0.979 0.008 1 3
C3H8 Propane rCH 1.096   1.104 0.008 1 4
CH3OC2H5 Ethane, methoxy- rCH 1.092 ±0.007 1.100 0.008 4 11
CHONH2 formamide rNH 1.001   1.009 0.008 3 6
C10H8 Azulene rC:C 1.484   1.493 0.009 7 8
CrH Chromium hydride rHCr 1.655 ±0.001 1.664 0.009 1 2
CH3CHO Acetaldehyde rCH 1.114   1.123 0.009 1 4
SCSe Carbon sulfide selenide rC=S 1.553 ±0.002 1.562 0.009 1 2
C3H6O 2-Propen-1-ol rCH 1.102 ±0.020 1.111 0.009 1 6
C10H8 Azulene rCH 1.084   1.093 0.009 4 14
C3H6 Cyclopropane rCH 1.083   1.092 0.009 1 4
Se2 Selenium diatomic rSe=Se 2.166 ±0.001 2.175 0.009 1 2
CH3CHClCH3 Propane, 2-chloro- rCH 1.091   1.100 0.009 2 5
NaH sodium hydride rNaH 1.887 ±0.000 1.896 0.009 1 2
C4H8 cyclobutane rCH 1.091   1.100 0.009 1 6
CHF3 Methane, trifluoro- rCH 1.091 ±0.014 1.100 0.009 1 2
C10H8 Azulene rCH 1.080   1.089 0.009 9 17
C2H2 Acetylene rCH 1.063   1.073 0.010 1 3
CH3NO nitrosomethane rCH 1.092   1.102 0.010 1 5
OH Hydroxyl radical rOH 0.970   0.979 0.010 1 2
CH2Cl2 Methylene chloride rCH 1.085 ±0.002 1.095 0.010 1 2
CH3OC2H5 Ethane, methoxy- rCH 1.099 ±0.007 1.109 0.010 1 6
B2H6 Diborane rBH 1.320   1.330 0.010 1 3
CH3OCH3 Dimethyl ether rCH 1.099 ±0.001 1.109 0.010 2 6
HOBr Hypobromous acid rOH 0.961   0.971 0.010 1 2
CH3CHClCH3 Propane, 2-chloro- rCH 1.092   1.102 0.010 3 6
LiF lithium fluoride rLiF 1.564 ±0.000 1.574 0.010 1 2
CH3CSNH2 Ethanethioamide rC=S 1.647 ±0.002 1.658 0.011 1 2
CH3OC2H5 Ethane, methoxy- rCH 1.100 ±0.003 1.111 0.011 3 8
CH3OC2H5 Ethane, methoxy- rCH 1.089 ±0.008 1.100 0.011 4 10
GeO Germanium monoxide rOGe 1.625   1.636 0.011 1 2
CH4 Methane rCH 1.087 ±0.001 1.098 0.011 1 2
CH2CHF Ethene, fluoro- rCH 1.082   1.093 0.011 1 4
HCCl Chloromethylene rCCl 1.696 ±0.003 1.708 0.011 1 2
CHONH2 formamide rNH 1.001   1.012 0.011 3 5
C3H3NO Oxazole rCH 1.073 ±0.001 1.085 0.012 5 8
CH3CHO Acetaldehyde rCH 1.086   1.098 0.012 2 5
C3H3NO Oxazole rCH 1.075 ±0.001 1.087 0.012 4 7
C3H3NO Oxazole rCH 1.075 ±0.001 1.087 0.012 2 6
CH3CCH propyne rCH 1.060   1.072 0.012 3 4
HeH+ Helium hydride cation rHHe 0.790   0.802 0.012 1 2
KrH+ Protonated Krypton rHKr 1.421 ±0.000 1.433 0.012 1 2
CH3CH2OH Ethanol rCH 1.088   1.100 0.012 1 5
C3H6O 2-Propen-1-ol rCH 1.096 ±0.030 1.108 0.012 1 5
SiP Silicon monophosphide rSiP 2.078 ±0.002 2.090 0.012 1 2
CH3CHFCH3 2-Fluoropropane rCH 1.088 ±0.006 1.101 0.013 4 6
HBr hydrogen bromide rHBr 1.414 ±0.000 1.427 0.013 1 2
C3H4 cyclopropene rCH 1.088   1.101 0.013 1 6
C10H8 Azulene rCH 1.083   1.095 0.013 5 15
CH3OC2H5 Ethane, methoxy- rCH 1.086 ±0.010 1.099 0.013 1 5
SeO2 Selenium dioxide rSeO 1.607 ±0.001 1.620 0.013 1 2
HBr+ hydrogen bromide cation rHBr 1.448   1.461 0.013 1 2
C10H8 Azulene rCH 1.081   1.094 0.013 1 11
BF3 Borane, trifluoro- rBF 1.307   1.320 0.013 1 2
CH3Br methyl bromide rCH 1.082 ±0.001 1.096 0.013 1 3
CH3CHFCH3 2-Fluoropropane rCH 1.092   1.105 0.013 1 3
C2H2+ acetylene cation rCH 1.077 ±0.005 1.090 0.013 1 3
C3H4 cyclopropene rCH 1.072   1.085 0.013 2 4
C10H8 Azulene rC:C 1.377   1.391 0.014 5 7
CH2CHF Ethene, fluoro- rCH 1.077   1.091 0.014 2 5
CH3OCH3 Dimethyl ether rCH 1.085 ±0.001 1.099 0.014 2 4
GeS Germanium monosulfide rS=Ge 2.012 ±0.000 2.026 0.014 1 2
H2Se Hydrogen selenide rSeH 1.460   1.474 0.014 1 2
CH3CHS Thioacetaldehyde rCH 1.089   1.103 0.014 1 4
C3H6O 2-Propen-1-ol rCH 1.078 ±0.010 1.092 0.014 3 8
SeCl2 Selenium Dichloride rClSe 2.157 ±0.003 2.172 0.015 1 2
NaCl Sodium Chloride rNaCl 2.361 ±0.000 2.376 0.015 1 2
BeH2 beryllium dihydride rBeH 1.326 ±0.000 1.341 0.015 1 2
CH3CH2O Ethoxy radical rCH 1.086   1.101 0.015 1 4
CH3CH2O Ethoxy radical rCH 1.085   1.101 0.016 1 5
BF Boron monofluoride rBF 1.267 ±0.000 1.282 0.016 1 2
NH2SH Thiohydroxylamine rSH 1.344 ±0.029 1.360 0.016 2 3
HOCl hypochlorous acid rClO 1.697 ±0.001 1.713 0.016 1 3
BH3 boron trihydride rBH 1.190   1.206 0.016 1 2
NH2CONH2 Urea rNH 0.998   1.014 0.016 4 8
C2H3 vinyl rCH 1.085   1.101 0.016 2 4
C2 Carbon diatomic rC=C 1.243   1.259 0.016 1 2
HCl Hydrogen chloride rHCl 1.275 ±0.000 1.291 0.017 1 2
CH3OCl methyl hypochlorite rCH 1.086 ±0.018 1.103 0.017 3 5
NS Mononitrogen monosulfide rNS 1.497 ±0.000 1.514 0.017 1 2
PS phosphorus sulfide rP=S 1.900   1.917 0.017 1 2
ClO Monochlorine monoxide rClO 1.596 ±0.001 1.613 0.017 1 2
SiH4 Silane rSiH 1.480 ±0.000 1.497 0.017 1 2
SiH3F monofluorosilane rSiH 1.476   1.494 0.017 1 3
C3O2 Carbon suboxide rC=O 1.146   1.163 0.017 2 4
CH3NH2 methyl amine rCH 1.093 ±0.000 1.110 0.018 1 3
C2H6O2S Dimethyl sulfone rCS 1.777 ±0.006 1.795 0.018 1 4
SiH3Cl chlorosilane rSiH 1.475   1.493 0.018 1 3
HOBr Hypobromous acid rBrO 1.834   1.852 0.018 2 3
AsH3 Arsine rAsH 1.511 ±0.000 1.529 0.018 1 2
LiH Lithium Hydride rLiH 1.595 ±0.000 1.613 0.018 1 2
HS Mercapto radical rSH 1.341   1.359 0.019 1 2
HCl+ hydrogen chloride cation rHCl 1.315   1.333 0.019 1 2
CH2F2 Methane, difluoro- rCH 1.084 ±0.003 1.103 0.019 1 2
LiO lithium oxide rLiO 1.688   1.707 0.019 1 2
BeH beryllium monohydride rBeH 1.343   1.362 0.019 1 2
SeO Selenium monoxide rSeO 1.639 ±0.001 1.659 0.019 1 2
HSiCl Chlorosilylene rSiH 1.525 ±0.005 1.545 0.020 1 3
H2 Hydrogen diatomic rHH 0.741   0.762 0.020 1 2
GaF Gallium monofluoride rFGa 1.774 ±0.000 1.795 0.020 1 2
CH Methylidyne rCH 1.120   1.140 0.020 1 2
GeH germylidene rGeH 1.588   1.609 0.021 1 2
SO+ sulfur monoxide cation rO=S 1.424   1.445 0.021 1 2
C5H8O Cyclopentanone rCC 1.504   1.525 0.021 2 3
PH phosphorus monohydride rPH 1.422   1.443 0.021 1 2
GeBr4 Germanium tetrabromide rGeBr 2.272 ±0.001 2.293 0.021 1 2
OH- hydroxide anion rOH 0.964   0.985 0.021 1 2
MgH magnesium monohydride rMgH 1.730   1.752 0.022 1 2
HS- mercapto anion rSH 1.343   1.366 0.022 1 2
SiS silicon monosulfide rSiS 1.929 ±0.000 1.952 0.023 1 2
GeH3F monofluorogermane rGeH 1.515 ±0.000 1.538 0.023 1 3
CH3CH2OH Ethanol rCH 1.086   1.109 0.023 2 8
SiH2F2 difluorosilane rSiH 1.462   1.485 0.024 1 4
Br2 Bromine diatomic rBrBr 2.281   2.305 0.024 1 2
SiH3+ Silyl cation rSiH 1.460 ±0.010 1.484 0.024 1 2
S2 Sulfur diatomic rS=S 1.889   1.915 0.026 1 2
HSSSH trisulfane rSS 2.054 ±0.000 2.080 0.027 1 2
BrCl Bromine monochloride rClBr 2.136 ±0.000 2.163 0.027 1 2
BH Boron monohydride rBH 1.232   1.259 0.027 1 2
Cl2+ chlorine diatomic cation rClCl 1.892   1.918 0.027 1 2
C3H5 Allyl radical rCH 1.069   1.096 0.027 1 2
C2H Ethynyl radical rCH 1.047   1.074 0.027 1 3
OPCl Phosphorus oxychloride rP=O 1.462 ±0.011 1.490 0.028 1 2
CH3CH2O Ethoxy radical rCH 1.088   1.116 0.028 2 7
SiH Silylidyne rSiH 1.520   1.548 0.028 1 2
SiO Silicon monoxide rSiO 1.510 ±0.000 1.538 0.028 1 2
GeF Germanium monofluoride rFGe 1.745   1.774 0.029 1 2
C3O2 Carbon suboxide rC=C 1.251   1.280 0.029 1 2
GeH3F monofluorogermane rGeF 1.731 ±0.000 1.761 0.030 1 2
SiH+ silicon monohydride cation rSiH 1.504   1.534 0.030 1 2
AsF Arsenic monofluoride rFAs 1.736 ±0.001 1.767 0.031 1 2
BrF Bromine monofluoride rFBr 1.759 ±0.000 1.790 0.031 1 2
ClOF3 Chlorine trifluoride oxide rFCl 1.713 ±0.003 1.744 0.031 1 4
PO Phosphorus monoxide rP=O 1.476   1.507 0.031 1 2
SCl sulfur monochloride rSCl 1.975   2.007 0.032 1 2
Cl2 Chlorine diatomic rClCl 1.988   2.020 0.032 1 2
SSO Disulfur monoxide rS=S 1.884   1.917 0.033 2 3
SCl2 Sulfur dichloride rSCl 2.013 ±0.001 2.046 0.033 1 2
GeCl Germanium monochloride rClGe 2.164 ±0.000 2.197 0.033 1 2
ClF Chlorine monofluoride rFCl 1.628 ±0.000 1.662 0.034 1 2
NaLi lithium sodium rLiNa 2.889   2.923 0.034 1 2
AlC Aluminum carbide rC=Al 1.955   1.991 0.036 1 2
SSO Disulfur monoxide rS=O 1.456   1.492 0.036 1 2
NCl nitrogen monochloride rNCl 1.611 ±0.000 1.646 0.036 1 2
SF4 Sulfur tetrafluoride rSF 1.646 ±0.003 1.682 0.036 1 2
SiH3Cl chlorosilane rSiCl 2.051   2.087 0.036 1 2
SO Sulfur monoxide rS=O 1.481   1.518 0.037 1 2
B2 Boron diatomic rBB 1.590   1.627 0.037 1 2
GaBr Gallium monobromide rGaBr 2.352 ±0.000 2.390 0.037 1 2
SiBr+ Silicon monobromide cation rSiBr 2.095 ±0.000 2.133 0.037 1 2
BrO Bromine monoxide rOBr 1.718   1.755 0.038 1 2
HClO4 perchloric acid rO=Cl 1.414 ±0.001 1.452 0.038 1 2
PF5 Phosphorus pentafluoride rFP 1.577   1.615 0.038 1 5
SF Monosulfur monofluoride rSF 1.599   1.638 0.038 1 2
F2SO Thionyl Fluoride rO=S 1.413 ±0.000 1.451 0.038 1 2
LiBr Lithium Bromide rLiBr 2.170 ±0.000 2.209 0.039 1 2
SiH2Cl2 dichlorosilane rSiCl 2.033 ±0.003 2.072 0.039 1 4
AlNC Aluminum isocyanide rAlN 1.855 ±0.005 1.894 0.040 1 2
SOF4 Sulfur tetrafluoride oxide rFS 1.596 ±0.003 1.637 0.041 1 3
GaAs Gallium arsenide rGa#As 2.530 ±0.020 2.572 0.042 1 2
GeF+ Germanium monofluoride cation rFGe 1.665 ±0.000 1.708 0.042 1 2
LiCl lithium chloride rLiCl 2.021 ±0.000 2.064 0.043 1 2
SiCl Clorosilylidyne rSiCl 2.061 ±0.000 2.105 0.044 1 2
OPCl Phosphorus oxychloride rPCl 2.059 ±0.004 2.103 0.044 1 3
HSiCl Chlorosilylene rSiCl 2.067 ±0.003 2.112 0.045 1 2
C2H6O2S Dimethyl sulfone rS=O 1.431 ±0.004 1.478 0.047 1 2
CFCl chlorofluoromethylene rCCl 1.714   1.764 0.050 1 3
He2+ helium diatomic cation rHeHe 1.081 ±0.001 1.131 0.050 1 2
AlF Aluminum monofluoride rAlF 1.654 ±0.000 1.705 0.051 1 2
HClO4 perchloric acid rOCl 1.641 ±0.002 1.693 0.052 1 3
PF2 Phosphorus difluoride rPF 1.579   1.631 0.052 1 2
PF5 Phosphorus pentafluoride rPF 1.534   1.586 0.052 1 2
SiH3F monofluorosilane rSiF 1.595   1.649 0.055 1 2
AlBr Aluminum monobromide rAlBr 2.295   2.350 0.055 1 2
F2SO Thionyl Fluoride rFS 1.585 ±0.000 1.641 0.056 1 3
SF4 Sulfur tetrafluoride rSF 1.545 ±0.003 1.601 0.056 1 4
AlCl Aluminum monochloride rAlCl 2.130 ±0.000 2.187 0.057 1 2
HClO4 perchloric acid rO=Cl 1.404 ±0.001 1.462 0.058 1 4
SiF silicon monofluoride rSiF 1.604   1.662 0.058 1 2
C4H8O2 Ethyl acetate rCO 1.448   1.507 0.059 5 6
SiF2 Silicon difluoride rFSi 1.590 ±0.000 1.651 0.061 1 2
SOF4 Sulfur tetrafluoride oxide rFS 1.539 ±0.003 1.600 0.061 1 5
ClOF3 Chlorine trifluoride oxide rFCl 1.603 ±0.004 1.676 0.073 1 3
Li2 Lithium diatomic rLiLi 2.673   2.746 0.073 1 2
Al2Cl6 Aluminum, di-μ-chlorotetrachlorodi- rAlCl 2.040 ±0.040 2.305 0.265 1 3
C4H10O Methyl propyl ether rCH 1.099   1.399 0.300 1 2
316 molecules.