Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology | |
You are here: Comparisons > Geometry > Bonds, angles > Average bond lengths |
Species | Name | Bond type | Bond Length (Å) | |||||
---|---|---|---|---|---|---|---|---|
Experimental | unc. | Calculated | Difference | atom1 | atom2 | |||
C4H10O | Methyl propyl ether | rCC | 1.530 | 1.083 | -0.447 | 5 | 13 | |
SiP | Silicon monophosphide | rSiP | 2.078 | ±0.002 | 1.979 | -0.098 | 1 | 2 |
Si2 | Silicon diatomic | rSiSi | 2.246 | 2.155 | -0.091 | 1 | 2 | |
HNO3 | Nitric acid | rNO | 1.406 | 1.353 | -0.053 | 1 | 2 | |
F2 | Fluorine diatomic | rFF | 1.412 | 1.367 | -0.045 | 1 | 2 | |
C3F6 | hexafluoropropene | rCF | 1.329 | ±0.003 | 1.287 | -0.042 | 1 | 4 |
CN | Cyano radical | rC#N | 1.172 | 1.130 | -0.042 | 1 | 2 | |
C2H2O2 | Ethanedial | rCH | 1.132 | 1.093 | -0.039 | 1 | 3 | |
SeO2 | Selenium dioxide | rSeO | 1.607 | ±0.001 | 1.573 | -0.034 | 1 | 2 |
CH3CH2CH2CH3 | Butane | rCH | 1.117 | 1.086 | -0.031 | 1 | 5 | |
As4 | Arsenic tetramer | rAsAs | 2.435 | 2.406 | -0.029 | 1 | 2 | |
LiOH | lithium hydroxide | rOH | 0.969 | 0.943 | -0.026 | 1 | 3 | |
SeO | Selenium monoxide | rSeO | 1.639 | ±0.001 | 1.613 | -0.026 | 1 | 2 |
CO+ | carbon monoxide cation | rC=O | 1.115 | ±0.000 | 1.089 | -0.026 | 1 | 2 |
NO | Nitric oxide | rN=O | 1.154 | ±0.000 | 1.130 | -0.024 | 1 | 2 |
HO2 | Hydroperoxy radical | rOO | 1.331 | 1.307 | -0.024 | 1 | 2 | |
OCSe | Carbonyl selenide | rC=O | 1.159 | 1.137 | -0.022 | 1 | 2 | |
HOCl | hypochlorous acid | rClO | 1.697 | ±0.001 | 1.675 | -0.022 | 1 | 3 |
O2 | Oxygen diatomic | rO=O | 1.208 | 1.185 | -0.022 | 1 | 2 | |
CH3CH2CHO | Propanal | rCH | 1.103 | 1.081 | -0.022 | 1 | 6 | |
BrF | Bromine monofluoride | rFBr | 1.759 | ±0.000 | 1.737 | -0.022 | 1 | 2 |
CBr4 | Carbon tetrabromide | rCBr | 1.942 | ±0.002 | 1.921 | -0.021 | 1 | 2 |
H2CSe | Selenoformaldehyde | rC=Se | 1.753 | 1.732 | -0.021 | 1 | 2 | |
C3F6 | hexafluoropropene | rC=C | 1.329 | ±0.003 | 1.309 | -0.020 | 1 | 2 |
H2Cl+ | dihydrogen monochloride cation | rHCl | 1.321 | ±0.000 | 1.301 | -0.019 | 1 | 2 |
SF4 | Sulfur tetrafluoride | rSF | 1.646 | ±0.003 | 1.627 | -0.019 | 1 | 2 |
BN | boron nitride | rB=N | 1.325 | 1.306 | -0.019 | 1 | 2 | |
GeO | Germanium monoxide | rOGe | 1.625 | 1.606 | -0.019 | 1 | 2 | |
HF+ | hydrogen fluoride cation | rHF | 1.014 | 0.996 | -0.019 | 1 | 2 | |
HOCl | hypochlorous acid | rOH | 0.973 | ±0.002 | 0.955 | -0.019 | 1 | 2 |
AsH | Arsenic monohydride | rAsH | 1.535 | ±0.001 | 1.516 | -0.018 | 1 | 2 |
HSe | Selenium monohydride | rSeH | 1.475 | ±0.010 | 1.457 | -0.018 | 1 | 2 |
CH3CH2CHO | Propanal | rCH | 1.105 | 1.087 | -0.018 | 2 | 8 | |
CH3CH2CHO | Propanal | rCH | 1.115 | 1.097 | -0.018 | 3 | 10 | |
Se2 | Selenium diatomic | rSe=Se | 2.166 | ±0.001 | 2.149 | -0.017 | 1 | 2 |
CH2NH | Methanimine | rCH | 1.103 | 1.086 | -0.017 | 1 | 3 | |
B2H6 | Diborane | rBH | 1.200 | 1.183 | -0.017 | 1 | 5 | |
CSe | Carbon monoselenide | rC=Se | 1.676 | ±0.000 | 1.660 | -0.016 | 1 | 2 |
NO+ | nitric oxide cation | rN=O | 1.066 | 1.050 | -0.016 | 1 | 2 | |
ArH+ | Argon hydride cation | rArH | 1.292 | ±0.000 | 1.276 | -0.016 | 1 | 2 |
CH3CHO | Acetaldehyde | rCH | 1.114 | 1.098 | -0.016 | 1 | 4 | |
SeCl2 | Selenium Dichloride | rClSe | 2.157 | ±0.003 | 2.142 | -0.015 | 1 | 2 |
CH3NH2 | methyl amine | rCN | 1.471 | ±0.003 | 1.456 | -0.015 | 1 | 2 |
SF4 | Sulfur tetrafluoride | rSF | 1.545 | ±0.003 | 1.530 | -0.015 | 1 | 4 |
HeH+ | Helium hydride cation | rHHe | 0.790 | 0.775 | -0.015 | 1 | 2 | |
CH3CH2CHO | Propanal | rCH | 1.096 | 1.082 | -0.014 | 1 | 5 | |
C2H2O2 | Ethanedial | rCC | 1.526 | 1.512 | -0.014 | 1 | 2 | |
CH3NH2 | methyl amine | rNH | 1.018 | ±0.001 | 1.005 | -0.014 | 2 | 6 |
CHF3 | Methane, trifluoro- | rCH | 1.091 | ±0.014 | 1.078 | -0.013 | 1 | 2 |
C2H6O2S | Dimethyl sulfone | rCS | 1.777 | ±0.006 | 1.764 | -0.013 | 1 | 4 |
CH2CO | Ketene | rC=O | 1.162 | 1.149 | -0.013 | 2 | 3 | |
CF | Fluoromethylidyne | rCF | 1.276 | 1.263 | -0.013 | 1 | 2 | |
ClF | Chlorine monofluoride | rFCl | 1.628 | ±0.000 | 1.615 | -0.013 | 1 | 2 |
ClO | Monochlorine monoxide | rClO | 1.596 | ±0.001 | 1.583 | -0.013 | 1 | 2 |
CH3CCH | propyne | rCH | 1.096 | 1.083 | -0.013 | 1 | 5 | |
PN | Phosphorus mononitride | rP#N | 1.491 | 1.478 | -0.012 | 1 | 2 | |
CH2CO | Ketene | rCH | 1.083 | 1.070 | -0.012 | 1 | 4 | |
H2CSe | Selenoformaldehyde | rHC | 1.090 | 1.078 | -0.012 | 1 | 3 | |
CH2CHCH2CH3 | 1-Butene | rCC | 1.536 | 1.524 | -0.012 | 1 | 2 | |
SSO | Disulfur monoxide | rS=O | 1.456 | 1.444 | -0.012 | 1 | 2 | |
SCSe | Carbon sulfide selenide | rC=S | 1.553 | ±0.002 | 1.541 | -0.012 | 1 | 2 |
CH2Br2 | dibromomethane | rCBr | 1.925 | ±0.002 | 1.913 | -0.012 | 1 | 4 |
CH3CHFCH3 | 2-Fluoropropane | rCH | 1.093 | ±0.006 | 1.081 | -0.012 | 4 | 8 |
CH3CHFCH3 | 2-Fluoropropane | rCH | 1.094 | ±0.005 | 1.083 | -0.011 | 4 | 10 |
CH3CH2CH2CH3 | Butane | rCC | 1.531 | 1.520 | -0.011 | 1 | 2 | |
CH3CHS | Thioacetaldehyde | rCH | 1.098 | 1.087 | -0.011 | 2 | 6 | |
OPCl | Phosphorus oxychloride | rP=O | 1.462 | ±0.011 | 1.451 | -0.011 | 1 | 2 |
C2H2+ | acetylene cation | rC=C | 1.253 | ±0.001 | 1.242 | -0.011 | 1 | 2 |
CHF3 | Methane, trifluoro- | rCF | 1.328 | ±0.003 | 1.317 | -0.011 | 1 | 3 |
SO+ | sulfur monoxide cation | rO=S | 1.424 | 1.413 | -0.011 | 1 | 2 | |
HS+ | sulfur monohydride cation | rSH | 1.374 | 1.363 | -0.011 | 1 | 2 | |
CH2F2 | Methane, difluoro- | rCF | 1.351 | ±0.001 | 1.340 | -0.011 | 1 | 4 |
HNCNH | diiminomethane | rC=N | 1.224 | ±0.001 | 1.213 | -0.011 | 1 | 2 |
HSiCl | Chlorosilylene | rSiH | 1.525 | ±0.005 | 1.514 | -0.011 | 1 | 3 |
HO2 | Hydroperoxy radical | rOH | 0.971 | 0.960 | -0.011 | 1 | 3 | |
NH2SH | Thiohydroxylamine | rSH | 1.344 | ±0.029 | 1.333 | -0.011 | 2 | 3 |
KrH+ | Protonated Krypton | rHKr | 1.421 | ±0.000 | 1.411 | -0.010 | 1 | 2 |
N2 | Nitrogen diatomic | rN#N | 1.098 | 1.087 | -0.010 | 1 | 2 | |
CH3CH2CHO | Propanal | rCC | 1.509 | 1.499 | -0.010 | 2 | 3 | |
H2CS | Thioformaldehyde | rC=S | 1.611 | 1.601 | -0.010 | 1 | 2 | |
SCSe | Carbon sulfide selenide | rC=Se | 1.695 | ±0.002 | 1.685 | -0.010 | 1 | 3 |
C3H8 | Propane | rCH | 1.096 | 1.086 | -0.010 | 1 | 4 | |
CH2Cl2 | Methylene chloride | rCH | 1.085 | ±0.002 | 1.075 | -0.010 | 1 | 2 |
CH2 | Methylene | rCH | 1.085 | 1.075 | -0.010 | 1 | 2 | |
HBr+ | hydrogen bromide cation | rHBr | 1.448 | 1.439 | -0.010 | 1 | 2 | |
B2H6 | Diborane | rBH | 1.320 | 1.310 | -0.010 | 1 | 3 | |
CH3CHS | Thioacetaldehyde | rCH | 1.090 | 1.080 | -0.010 | 2 | 5 | |
CH3CH2CHO | Propanal | rCC | 1.523 | 1.514 | -0.009 | 1 | 2 | |
GeF | Germanium monofluoride | rFGe | 1.745 | 1.736 | -0.009 | 1 | 2 | |
GeH3F | monofluorogermane | rGeF | 1.731 | ±0.000 | 1.722 | -0.009 | 1 | 2 |
C3H6 | Cyclopropane | rCH | 1.083 | 1.074 | -0.009 | 1 | 4 | |
CS | carbon monosulfide | rC#S | 1.535 | 1.526 | -0.009 | 1 | 2 | |
H2Se | Hydrogen selenide | rSeH | 1.460 | 1.451 | -0.009 | 1 | 2 | |
BO | boron monoxide | rB=O | 1.205 | 1.196 | -0.009 | 1 | 2 | |
SSO | Disulfur monoxide | rS=S | 1.884 | 1.876 | -0.009 | 2 | 3 | |
CH3Br | methyl bromide | rCBr | 1.934 | ±0.000 | 1.926 | -0.008 | 1 | 2 |
CH2CHF | Ethene, fluoro- | rCH | 1.082 | 1.074 | -0.008 | 1 | 4 | |
C2H2 | Acetylene | rC#C | 1.203 | 1.195 | -0.008 | 1 | 2 | |
CH3CHFCH3 | 2-Fluoropropane | rCH | 1.092 | 1.084 | -0.008 | 1 | 3 | |
CO | Carbon monoxide | rC#O | 1.128 | ±0.000 | 1.120 | -0.008 | 1 | 2 |
HBr | hydrogen bromide | rHBr | 1.414 | ±0.000 | 1.407 | -0.008 | 1 | 2 |
SF | Monosulfur monofluoride | rSF | 1.599 | 1.592 | -0.008 | 1 | 2 | |
AsH3 | Arsine | rAsH | 1.511 | ±0.000 | 1.503 | -0.008 | 1 | 2 |
NO- | nitric oxide anion | rN=O | 1.258 | ±0.010 | 1.251 | -0.007 | 1 | 2 |
C3H4 | cyclopropene | rCH | 1.088 | 1.081 | -0.007 | 1 | 6 | |
BF | Boron monofluoride | rBF | 1.267 | ±0.000 | 1.260 | -0.007 | 1 | 2 |
SO | Sulfur monoxide | rS=O | 1.481 | 1.474 | -0.007 | 1 | 2 | |
CH3CSNH2 | Ethanethioamide | rC=S | 1.647 | ±0.002 | 1.640 | -0.007 | 1 | 2 |
GeBr4 | Germanium tetrabromide | rGeBr | 2.272 | ±0.001 | 2.265 | -0.007 | 1 | 2 |
GeH | germylidene | rGeH | 1.588 | 1.581 | -0.007 | 1 | 2 | |
CH3CHS | Thioacetaldehyde | rCH | 1.089 | 1.082 | -0.007 | 1 | 4 | |
GaF | Gallium monofluoride | rFGa | 1.774 | ±0.000 | 1.768 | -0.006 | 1 | 2 |
DF | Hydrofluoric acid-d | rDF | 0.917 | ±0.000 | 0.911 | -0.006 | 1 | 2 |
BF3 | Borane, trifluoro- | rBF | 1.307 | 1.301 | -0.006 | 1 | 2 | |
SiO | Silicon monoxide | rSiO | 1.510 | ±0.000 | 1.504 | -0.006 | 1 | 2 |
CH3CHO | Acetaldehyde | rCH | 1.086 | 1.080 | -0.006 | 2 | 5 | |
CH3CHFCH3 | 2-Fluoropropane | rCH | 1.088 | ±0.006 | 1.083 | -0.005 | 4 | 6 |
HF | Hydrogen fluoride | rHF | 0.917 | ±0.000 | 0.911 | -0.005 | 1 | 2 |
SiH3F | monofluorosilane | rSiH | 1.476 | 1.471 | -0.005 | 1 | 3 | |
H2O | Water | rOH | 0.958 | ±0.000 | 0.953 | -0.005 | 1 | 2 |
PF2 | Phosphorus difluoride | rPF | 1.579 | 1.574 | -0.005 | 1 | 2 | |
C2H2 | Acetylene | rCH | 1.063 | 1.058 | -0.005 | 1 | 3 | |
SiH3Cl | chlorosilane | rSiH | 1.475 | 1.470 | -0.005 | 1 | 3 | |
DO | Hydroxyl-d | rDO | 0.970 | 0.965 | -0.005 | 1 | 2 | |
C3H4 | cyclopropene | rCH | 1.072 | 1.067 | -0.005 | 2 | 4 | |
OH | Hydroxyl radical | rOH | 0.970 | 0.965 | -0.004 | 1 | 2 | |
CH3CCH | propyne | rCH | 1.060 | 1.056 | -0.004 | 3 | 4 | |
C3H6 | Cyclopropane | rCC | 1.501 | 1.497 | -0.004 | 1 | 2 | |
Br2 | Bromine diatomic | rBrBr | 2.281 | 2.277 | -0.004 | 1 | 2 | |
CH3Br | methyl bromide | rCH | 1.082 | ±0.001 | 1.078 | -0.004 | 1 | 3 |
CH2CHF | Ethene, fluoro- | rCH | 1.077 | 1.073 | -0.004 | 2 | 5 | |
CH2Cl2 | Methylene chloride | rCCl | 1.767 | ±0.002 | 1.763 | -0.004 | 1 | 4 |
C3O2 | Carbon suboxide | rC=O | 1.146 | 1.143 | -0.003 | 2 | 4 | |
LiNH2 | lithium amide | rLiN | 1.736 | ±0.003 | 1.733 | -0.003 | 1 | 2 |
CH2F2 | Methane, difluoro- | rCH | 1.084 | ±0.003 | 1.081 | -0.003 | 1 | 2 |
NH | Imidogen | rNH | 1.036 | 1.033 | -0.003 | 1 | 2 | |
CH3NH2 | methyl amine | rCH | 1.093 | ±0.000 | 1.090 | -0.003 | 1 | 3 |
He2+ | helium diatomic cation | rHeHe | 1.081 | ±0.001 | 1.078 | -0.003 | 1 | 2 |
DCl | Hydrochloric acid-d | rDCl | 1.275 | ±0.000 | 1.272 | -0.002 | 1 | 2 |
HCl | Hydrogen chloride | rHCl | 1.275 | ±0.000 | 1.272 | -0.002 | 1 | 2 |
HCl+ | hydrogen chloride cation | rHCl | 1.315 | 1.312 | -0.002 | 1 | 2 | |
C2H2+ | acetylene cation | rCH | 1.077 | ±0.005 | 1.075 | -0.002 | 1 | 3 |
CH4 | Methane | rCH | 1.087 | ±0.001 | 1.085 | -0.002 | 1 | 2 |
C2H3 | vinyl | rCH | 1.085 | 1.083 | -0.002 | 2 | 4 | |
BrCl | Bromine monochloride | rClBr | 2.136 | ±0.000 | 2.134 | -0.002 | 1 | 2 |
BH3 | boron trihydride | rBH | 1.190 | 1.188 | -0.002 | 1 | 2 | |
CH | Methylidyne | rCH | 1.120 | 1.118 | -0.002 | 1 | 2 | |
Cl2+ | chlorine diatomic cation | rClCl | 1.892 | 1.890 | -0.002 | 1 | 2 | |
SiH4 | Silane | rSiH | 1.480 | ±0.000 | 1.479 | -0.001 | 1 | 2 |
SiH2F2 | difluorosilane | rSiH | 1.462 | 1.461 | -0.001 | 1 | 4 | |
HS- | mercapto anion | rSH | 1.343 | 1.342 | -0.001 | 1 | 2 | |
SiS | silicon monosulfide | rSiS | 1.929 | ±0.000 | 1.929 | -0.001 | 1 | 2 |
HS | Mercapto radical | rSH | 1.341 | 1.341 | 0.000 | 1 | 2 | |
C2H6O2S | Dimethyl sulfone | rS=O | 1.431 | ±0.004 | 1.431 | 0.000 | 1 | 2 |
OCSe | Carbonyl selenide | rC=Se | 1.709 | 1.709 | 0.000 | 1 | 3 | |
BH | Boron monohydride | rBH | 1.232 | 1.232 | 0.000 | 1 | 2 | |
DS | Mercapto-d | rSD | 1.341 | 1.341 | 0.000 | 1 | 2 | |
GeH3F | monofluorogermane | rGeH | 1.515 | ±0.000 | 1.515 | 0.001 | 1 | 3 |
H2 | Hydrogen diatomic | rHH | 0.741 | 0.742 | 0.001 | 1 | 2 | |
D2 | Deuterium diatomic | rDD | 0.742 | 0.742 | 0.001 | 1 | 2 | |
HD | Deuterium hydride | rDH | 0.741 | 0.742 | 0.001 | 1 | 2 | |
S2 | Sulfur diatomic | rS=S | 1.889 | 1.890 | 0.001 | 1 | 2 | |
LiOH | lithium hydroxide | rLiO | 1.582 | 1.583 | 0.002 | 1 | 2 | |
PH | phosphorus monohydride | rPH | 1.422 | 1.424 | 0.002 | 1 | 2 | |
CH2CHCH2CH3 | 1-Butene | rCC | 1.493 | 1.495 | 0.002 | 2 | 3 | |
SiH3F | monofluorosilane | rSiF | 1.595 | 1.597 | 0.003 | 1 | 2 | |
SiH3+ | Silyl cation | rSiH | 1.460 | ±0.010 | 1.464 | 0.004 | 1 | 2 |
SiH | Silylidyne | rSiH | 1.520 | 1.524 | 0.004 | 1 | 2 | |
AlNC | Aluminum isocyanide | rAlN | 1.855 | ±0.005 | 1.859 | 0.004 | 1 | 2 |
SiF2 | Silicon difluoride | rFSi | 1.590 | ±0.000 | 1.595 | 0.005 | 1 | 2 |
BrO | Bromine monoxide | rOBr | 1.718 | 1.723 | 0.005 | 1 | 2 | |
OPCl | Phosphorus oxychloride | rPCl | 2.059 | ±0.004 | 2.064 | 0.006 | 1 | 3 |
GaAs | Gallium arsenide | rGa#As | 2.530 | ±0.020 | 2.536 | 0.006 | 1 | 2 |
GaBr | Gallium monobromide | rGaBr | 2.352 | ±0.000 | 2.358 | 0.006 | 1 | 2 |
AlH | aluminum monohydride | rAlH | 1.648 | 1.654 | 0.006 | 1 | 2 | |
GeCl | Germanium monochloride | rClGe | 2.164 | ±0.000 | 2.171 | 0.007 | 1 | 2 |
Cl2 | Chlorine diatomic | rClCl | 1.988 | 1.995 | 0.007 | 1 | 2 | |
SiBr+ | Silicon monobromide cation | rSiBr | 2.095 | ±0.000 | 2.104 | 0.009 | 1 | 2 |
MgH | magnesium monohydride | rMgH | 1.730 | 1.739 | 0.009 | 1 | 2 | |
C3H5 | Allyl radical | rCH | 1.069 | 1.078 | 0.009 | 1 | 2 | |
LiH | Lithium Hydride | rLiH | 1.595 | ±0.000 | 1.607 | 0.012 | 1 | 2 |
SiH3Cl | chlorosilane | rSiCl | 2.051 | 2.063 | 0.012 | 1 | 2 | |
AlF | Aluminum monofluoride | rAlF | 1.654 | ±0.000 | 1.667 | 0.013 | 1 | 2 |
LiF | lithium fluoride | rLiF | 1.564 | ±0.000 | 1.577 | 0.013 | 1 | 2 |
C3O2 | Carbon suboxide | rC=C | 1.251 | 1.266 | 0.015 | 1 | 2 | |
SiCl | Clorosilylidyne | rSiCl | 2.061 | ±0.000 | 2.078 | 0.016 | 1 | 2 |
LiCl | lithium chloride | rLiCl | 2.021 | ±0.000 | 2.038 | 0.017 | 1 | 2 |
HSiCl | Chlorosilylene | rSiCl | 2.067 | ±0.003 | 2.086 | 0.019 | 1 | 2 |
LiBr | Lithium Bromide | rLiBr | 2.170 | ±0.000 | 2.191 | 0.020 | 1 | 2 |
PS | phosphorus sulfide | rP=S | 1.900 | 1.921 | 0.021 | 1 | 2 | |
NCl | nitrogen monochloride | rNCl | 1.611 | ±0.000 | 1.632 | 0.021 | 1 | 2 |
AlBr | Aluminum monobromide | rAlBr | 2.295 | 2.318 | 0.023 | 1 | 2 | |
AlN | Aluminum nitride | rN#Al | 1.786 | 1.821 | 0.035 | 1 | 2 | |
CaO | Calcium monoxide | rOCa | 1.822 | 1.870 | 0.048 | 1 | 2 | |
CaC | Calcium monocarbide | rC#Ca | 2.302 | 2.350 | 0.049 | 1 | 2 | |
NaLi | lithium sodium | rLiNa | 2.889 | 2.952 | 0.063 | 1 | 2 | |
CaBr | Calcium monobromide | rCaBr | 2.594 | ±0.000 | 2.667 | 0.073 | 1 | 2 |
C4H10O | Methyl propyl ether | rCH | 1.099 | 1.391 | 0.292 | 1 | 2 |