{"title":"List of polar and nonpolar molecules","description":"Polar and nonpolar molecules with a specific reason for each classification, the molecular geometry, and experimental dipole moments where available.","slug":"polar-and-nonpolar-molecules","url":"https://proteiniq.io/datasets/polar-and-nonpolar-molecules","version":"2026.10.05","updatedAt":"2026-10-05","license":{"id":"CC-BY-4.0","name":"Creative Commons Attribution 4.0 International","url":"https://creativecommons.org/licenses/by/4.0/"},"attribution":"List of polar and nonpolar molecules by ProteinIQ (https://proteiniq.io/datasets/polar-and-nonpolar-molecules), compiled from PubChem, NIST CCCBDB, RDKit, OpenStax Chemistry. Licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).","citation":"ProteinIQ (2026). List of polar and nonpolar molecules, version 2026.10.05. https://proteiniq.io/datasets/polar-and-nonpolar-molecules","sources":[{"name":"PubChem","url":"https://pubchem.ncbi.nlm.nih.gov/","role":"Canonical compound identifiers, names, formulas, structures, SMILES, and downloadable compound records.","licenseNote":"NCBI places no restrictions on PubChem data, though original submitters may retain rights in submitted records."},{"name":"NIST CCCBDB","url":"https://cccbdb.nist.gov/diplistx.asp","role":"Experimental gas-phase dipole moments (NIST Computational Chemistry Comparison and Benchmark Database, SRD 101).","licenseNote":"NIST Standard Reference Database 101; values are cited per row with the CCCBDB reference code."},{"name":"RDKit","url":"https://www.rdkit.org/","role":"Derived descriptors such as molecular weight, LogP, TPSA, hydrogen-bond counts, and canonicalized structures."},{"name":"OpenStax Chemistry","url":"https://openstax.org/details/books/chemistry-2e","role":"Chemistry definitions used for educational polarity, bonding, organic chemistry, and molecule-class explanations."}],"columns":[{"key":"name","label":"Name"},{"key":"formula","label":"Formula"},{"key":"molecularWeight","label":"MW (g/mol)"},{"key":"classification","label":"Classification"},{"key":"category","label":"Basis"},{"key":"geometry","label":"Geometry"},{"key":"dipoleMoment","label":"Dipole (D)","description":"Experimental gas-phase dipole moment in debye from NIST CCCBDB. Blank when no single unambiguous experimental value is available."},{"key":"smiles","label":"SMILES"},{"key":"pubchemCid","label":"PubChem CID"},{"key":"sourceIds","label":"Source IDs"},{"key":"notes","label":"Notes"}],"rowCount":136,"rows":[{"id":"water","name":"Water","formula":"H2O","molecularWeight":18.02,"classification":"Polar molecule","category":"Bent shape, so the two polar O-H bond dipoles add instead of cancelling","geometry":"Bent","dipoleMoment":1.857,"smiles":"O","pubchemCid":"962","sourceIds":["PubChem CID 962","NIST CCCBDB dipole (1991Sho/Ebe:5875-5882)"]},{"id":"ammonia","name":"Ammonia","formula":"NH3","molecularWeight":17.03,"classification":"Polar molecule","category":"Lone pair gives a trigonal pyramidal shape; the three N-H dipoles add","geometry":"Trigonal pyramidal","dipoleMoment":1.476,"smiles":"N","pubchemCid":"222","sourceIds":["PubChem CID 222","NIST CCCBDB dipole (1970Shi:3572-3576)"]},{"id":"phosphine","name":"Phosphine","formula":"PH3","molecularWeight":34,"classification":"Polar molecule","category":"Trigonal pyramidal like ammonia, but P-H bonds are barely polar, so the dipole is small","geometry":"Trigonal pyramidal","dipoleMoment":0.58,"smiles":"P","pubchemCid":"24404","sourceIds":["PubChem CID 24404","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"nitrogen-trifluoride","name":"Nitrogen trifluoride","formula":"NF3","molecularWeight":71,"classification":"Polar molecule","category":"Trigonal pyramidal; the lone pair partly offsets the N-F bond dipoles, leaving a small net dipole","geometry":"Trigonal pyramidal","dipoleMoment":0.235,"smiles":"N(F)(F)F","pubchemCid":"24553","sourceIds":["PubChem CID 24553","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"phosphorus-trichloride","name":"Phosphorus trichloride","formula":"PCl3","molecularWeight":137.32,"classification":"Polar molecule","category":"Trigonal pyramidal, so the polar P-Cl bonds do not cancel","geometry":"Trigonal pyramidal","dipoleMoment":0.56,"smiles":"P(Cl)(Cl)Cl","pubchemCid":"24387","sourceIds":["PubChem CID 24387","NIST CCCBDB dipole (1974Hel/Hel(II/6))"]},{"id":"hydrogen-fluoride","name":"Hydrogen fluoride","formula":"HF","molecularWeight":20.01,"classification":"Polar molecule","category":"Heteronuclear diatomic with a large H-F electronegativity difference","geometry":"Linear","dipoleMoment":1.827,"smiles":"F","pubchemCid":"14917","sourceIds":["PubChem CID 14917","NIST CCCBDB dipole (NISTDiatomic)"]},{"id":"hydrogen-chloride","name":"Hydrogen chloride","formula":"HCl","molecularWeight":36.46,"classification":"Polar molecule","category":"Heteronuclear diatomic; chlorine pulls electron density from hydrogen","geometry":"Linear","dipoleMoment":1.093,"smiles":"Cl","pubchemCid":"313","sourceIds":["PubChem CID 313","NIST CCCBDB dipole (NISTDiatomic)"]},{"id":"hydrogen-bromide","name":"Hydrogen bromide","formula":"HBr","molecularWeight":80.91,"classification":"Polar molecule","category":"Heteronuclear diatomic; smaller electronegativity difference than HCl","geometry":"Linear","dipoleMoment":0.827,"smiles":"Br","pubchemCid":"260","sourceIds":["PubChem CID 260","NIST CCCBDB dipole (NISTdiatomic)"]},{"id":"hydrogen-iodide","name":"Hydrogen iodide","formula":"HI","molecularWeight":127.91,"classification":"Polar molecule","category":"Heteronuclear diatomic with only a small H-I electronegativity difference","geometry":"Linear","dipoleMoment":0.448,"smiles":"I","pubchemCid":"24841","sourceIds":["PubChem CID 24841","NIST CCCBDB dipole (NISTDiatomic)"]},{"id":"carbon-monoxide","name":"Carbon monoxide","formula":"CO","molecularWeight":28.01,"classification":"Polar molecule","category":"Heteronuclear diatomic; bond polarity and the carbon lone pair nearly cancel, leaving a very small dipole","geometry":"Linear","dipoleMoment":0.112,"smiles":"[C-]#[O+]","pubchemCid":"281","sourceIds":["PubChem CID 281","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"nitric-oxide","name":"Nitric oxide","formula":"NO","molecularWeight":30.01,"classification":"Polar molecule","category":"Heteronuclear diatomic radical with a small N-O dipole","geometry":"Linear","dipoleMoment":0.159,"smiles":"[N]=O","pubchemCid":"145068","sourceIds":["PubChem CID 145068","NIST CCCBDB dipole (1971Byf/Car:271)"]},{"id":"hydrogen-sulfide","name":"Hydrogen sulfide","formula":"H2S","molecularWeight":34.08,"classification":"Polar molecule","category":"Bent like water, but S-H bonds are much less polar than O-H","geometry":"Bent","dipoleMoment":0.977,"smiles":"S","pubchemCid":"402","sourceIds":["PubChem CID 402","NIST CCCBDB dipole (1984Vis/Dyk:231-239)"]},{"id":"sulfur-dioxide","name":"Sulfur dioxide","formula":"SO2","molecularWeight":64.06,"classification":"Polar molecule","category":"Bent shape from the sulfur lone pair, so the S=O dipoles do not cancel","geometry":"Bent","dipoleMoment":1.633,"smiles":"O=S=O","pubchemCid":"1119","sourceIds":["PubChem CID 1119","NIST CCCBDB dipole (1979Pat/Mar:2740-2747)"]},{"id":"ozone","name":"Ozone","formula":"O3","molecularWeight":48,"classification":"Polar molecule","category":"Bent, and the central oxygen differs from the two end oxygens, so even this one-element molecule is polar","geometry":"Bent","dipoleMoment":0.53,"smiles":"[O-][O+]=O","pubchemCid":"24823","sourceIds":["PubChem CID 24823","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"nitrogen-dioxide","name":"Nitrogen dioxide","formula":"NO2","molecularWeight":46.01,"classification":"Polar molecule","category":"Bent radical, so the N-O bond dipoles do not cancel","geometry":"Bent","dipoleMoment":0.316,"smiles":"N(=O)[O]","pubchemCid":"3032552","sourceIds":["PubChem CID 3032552","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"nitrous-oxide","name":"Nitrous oxide","formula":"N2O","molecularWeight":44.01,"classification":"Polar molecule","category":"Linear but unsymmetrical (N-N-O), so the two ends differ and a small dipole remains","geometry":"Linear","dipoleMoment":0.161,"smiles":"[N-]=[N+]=O","pubchemCid":"948","sourceIds":["PubChem CID 948","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"hydrogen-cyanide","name":"Hydrogen cyanide","formula":"HCN","molecularWeight":27.03,"classification":"Polar molecule","category":"Linear but unsymmetrical; the C≡N bond is strongly polarized toward nitrogen","geometry":"Linear","dipoleMoment":2.98,"smiles":"C#N","pubchemCid":"768","sourceIds":["PubChem CID 768","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"hydrogen-peroxide","name":"Hydrogen peroxide","formula":"H2O2","molecularWeight":34.01,"classification":"Polar molecule","category":"Twisted, nonplanar H-O-O-H shape keeps the O-H dipoles from cancelling","geometry":"Nonplanar (open book)","smiles":"OO","pubchemCid":"784","sourceIds":["PubChem CID 784"]},{"id":"sulfuric-acid","name":"Sulfuric acid","formula":"H2SO4","molecularWeight":98.07,"classification":"Polar molecule","category":"Polar S=O and O-H bonds in an unsymmetrical arrangement around sulfur","geometry":"Tetrahedral (at S)","dipoleMoment":2.725,"smiles":"OS(=O)(=O)O","pubchemCid":"1118","sourceIds":["PubChem CID 1118","NIST CCCBDB dipole (1981Kuc/Sue:2561)"]},{"id":"nitric-acid","name":"Nitric acid","formula":"HNO3","molecularWeight":63.01,"classification":"Polar molecule","category":"Planar molecule with polar N-O and O-H bonds that do not cancel","geometry":"Trigonal planar (at N)","dipoleMoment":2.17,"smiles":"[N+](=O)(O)[O-]","pubchemCid":"944","sourceIds":["PubChem CID 944","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"phosphoric-acid","name":"Phosphoric acid","formula":"H3PO4","molecularWeight":97.99,"classification":"Polar molecule","category":"Polar P=O bond and three O-H groups; strong hydrogen bonding","geometry":"Tetrahedral (at P)","smiles":"OP(=O)(O)O","pubchemCid":"1004","sourceIds":["PubChem CID 1004"]},{"id":"formaldehyde","name":"Formaldehyde","formula":"CH2O","molecularWeight":30.03,"classification":"Polar molecule","category":"Polar C=O bond with nothing opposite to cancel it","geometry":"Trigonal planar","dipoleMoment":2.332,"smiles":"C=O","pubchemCid":"712","sourceIds":["PubChem CID 712","NIST CCCBDB dipole (2003The/Cal:8910-8915)"]},{"id":"acetaldehyde","name":"Acetaldehyde","formula":"C2H4O","molecularWeight":44.05,"classification":"Polar molecule","category":"Polar C=O carbonyl group","geometry":"Trigonal planar (at carbonyl C)","dipoleMoment":2.75,"smiles":"CC=O","pubchemCid":"177","sourceIds":["PubChem CID 177","NIST CCCBDB dipole (1978Tur/Cox:533-559)"]},{"id":"acetone","name":"Acetone","formula":"C3H6O","molecularWeight":58.08,"classification":"Polar molecule","category":"Polar C=O carbonyl group; the two methyl groups cannot cancel it","geometry":"Trigonal planar (at carbonyl C)","dipoleMoment":2.88,"smiles":"CC(=O)C","pubchemCid":"180","sourceIds":["PubChem CID 180","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"butanone","name":"Butanone","formula":"C4H8O","molecularWeight":72.11,"classification":"Polar molecule","category":"Polar C=O carbonyl group","geometry":"Trigonal planar (at carbonyl C)","dipoleMoment":2.779,"smiles":"CCC(=O)C","pubchemCid":"6569","sourceIds":["PubChem CID 6569","NIST CCCBDB dipole (1991Dur/Fen:1827)"]},{"id":"cyclohexanone","name":"Cyclohexanone","formula":"C6H10O","molecularWeight":98.15,"classification":"Polar molecule","category":"Polar C=O carbonyl group on a ring","geometry":"Trigonal planar (at carbonyl C)","dipoleMoment":3.02,"smiles":"C1CCC(=O)CC1","pubchemCid":"7967","sourceIds":["PubChem CID 7967","NIST CCCBDB dipole (1971Vau:21)"]},{"id":"methanol","name":"Methanol","formula":"CH4O","molecularWeight":32.04,"classification":"Polar molecule","category":"Polar O-H group on a bent C-O-H; hydrogen bonds strongly","geometry":"Tetrahedral (at C), bent (at O)","dipoleMoment":1.672,"smiles":"CO","pubchemCid":"887","sourceIds":["PubChem CID 887","NIST CCCBDB dipole (1981Sas/Lee:228-230)"]},{"id":"ethanol","name":"Ethanol","formula":"C2H6O","molecularWeight":46.07,"classification":"Polar molecule","category":"Polar O-H group; hydrogen bonds and mixes with water","geometry":"Tetrahedral (at C), bent (at O)","dipoleMoment":1.679,"smiles":"CCO","pubchemCid":"702","sourceIds":["PubChem CID 702","NIST CCCBDB dipole (1980Kak/Qua:4300-4307)"]},{"id":"1-propanol","name":"1-Propanol","formula":"C3H8O","molecularWeight":60.1,"classification":"Polar molecule","category":"Polar O-H group outweighs the short hydrocarbon chain","geometry":"Tetrahedral (at C), bent (at O)","smiles":"CCCO","pubchemCid":"1031","sourceIds":["PubChem CID 1031"]},{"id":"isopropanol","name":"Isopropanol","formula":"C3H8O","molecularWeight":60.1,"classification":"Polar molecule","category":"Polar O-H group; hydrogen bonds with water","geometry":"Tetrahedral (at C), bent (at O)","dipoleMoment":1.58,"smiles":"CC(C)O","pubchemCid":"3776","sourceIds":["PubChem CID 3776","NIST CCCBDB dipole (1970Kon/Hir:97)"]},{"id":"1-butanol","name":"1-Butanol","formula":"C4H10O","molecularWeight":74.12,"classification":"Polar molecule","category":"Polar O-H group, though the four-carbon chain lowers water solubility","geometry":"Tetrahedral (at C), bent (at O)","dipoleMoment":1.66,"smiles":"CCCCO","pubchemCid":"263","sourceIds":["PubChem CID 263","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"ethylene-glycol","name":"Ethylene glycol","formula":"C2H6O2","molecularWeight":62.07,"classification":"Polar molecule","category":"Two O-H groups give strong hydrogen bonding","smiles":"C(CO)O","pubchemCid":"174","sourceIds":["PubChem CID 174"]},{"id":"glycerol","name":"Glycerol","formula":"C3H8O3","molecularWeight":92.09,"classification":"Polar molecule","category":"Three O-H groups give strong hydrogen bonding","smiles":"C(C(CO)O)O","pubchemCid":"753","sourceIds":["PubChem CID 753"]},{"id":"formic-acid","name":"Formic acid","formula":"CH2O2","molecularWeight":46.03,"classification":"Polar molecule","category":"Carboxylic acid group with polar C=O and O-H bonds","geometry":"Trigonal planar (at C)","dipoleMoment":1.41,"smiles":"C(=O)O","pubchemCid":"284","sourceIds":["PubChem CID 284","NIST CCCBDB dipole (1984Gra/Gub)"]},{"id":"acetic-acid","name":"Acetic acid","formula":"C2H4O2","molecularWeight":60.05,"classification":"Polar molecule","category":"Carboxylic acid group with polar C=O and O-H bonds","geometry":"Trigonal planar (at carboxyl C)","dipoleMoment":1.7,"smiles":"CC(=O)O","pubchemCid":"176","sourceIds":["PubChem CID 176","NIST CCCBDB dipole (1971Kri/Sae:4553)"]},{"id":"propionic-acid","name":"Propionic acid","formula":"C3H6O2","molecularWeight":74.08,"classification":"Polar molecule","category":"Carboxylic acid group with polar C=O and O-H bonds","geometry":"Trigonal planar (at carboxyl C)","dipoleMoment":1.75,"smiles":"CCC(=O)O","pubchemCid":"1032","sourceIds":["PubChem CID 1032","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"formamide","name":"Formamide","formula":"CH3NO","molecularWeight":45.04,"classification":"Polar molecule","category":"Amide group with a strongly polar C=O and N-H bonds","geometry":"Planar","dipoleMoment":3.73,"smiles":"C(=O)N","pubchemCid":"713","sourceIds":["PubChem CID 713","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"acetamide","name":"Acetamide","formula":"C2H5NO","molecularWeight":59.07,"classification":"Polar molecule","category":"Amide group with a strongly polar C=O and N-H bonds","geometry":"Trigonal planar (at carbonyl C)","dipoleMoment":3.76,"smiles":"CC(=O)N","pubchemCid":"178","sourceIds":["PubChem CID 178","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"dimethylformamide","name":"Dimethylformamide","formula":"C3H7NO","molecularWeight":73.1,"classification":"Polar molecule","category":"Amide group; strongly polar aprotic solvent","geometry":"Trigonal planar (at carbonyl C)","dipoleMoment":3.82,"smiles":"CN(C)C=O","pubchemCid":"6228","sourceIds":["PubChem CID 6228","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"acetonitrile","name":"Acetonitrile","formula":"C2H3N","molecularWeight":41.05,"classification":"Polar molecule","category":"Strongly polarized nitrile group on a linear C-C≡N axis","geometry":"Linear (C-C≡N)","dipoleMoment":3.919,"smiles":"CC#N","pubchemCid":"6342","sourceIds":["PubChem CID 6342","NIST CCCBDB dipole (1974Hel/Hel(II/6))"]},{"id":"nitromethane","name":"Nitromethane","formula":"CH3NO2","molecularWeight":61.04,"classification":"Polar molecule","category":"Nitro group with polar N-O bonds","geometry":"Trigonal planar (at N)","dipoleMoment":3.46,"smiles":"C[N+](=O)[O-]","pubchemCid":"6375","sourceIds":["PubChem CID 6375","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"dimethyl-sulfoxide","name":"Dimethyl sulfoxide","formula":"C2H6OS","molecularWeight":78.13,"classification":"Polar molecule","category":"Strongly polar S=O bond on a pyramidal sulfur; polar aprotic solvent","geometry":"Trigonal pyramidal (at S)","dipoleMoment":3.96,"smiles":"CS(=O)C","pubchemCid":"679","sourceIds":["PubChem CID 679","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"methylamine","name":"Methylamine","formula":"CH5N","molecularWeight":31.06,"classification":"Polar molecule","category":"Polar N-H bonds and a nitrogen lone pair on a pyramidal nitrogen","geometry":"Trigonal pyramidal (at N)","dipoleMoment":1.31,"smiles":"CN","pubchemCid":"6329","sourceIds":["PubChem CID 6329","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"ethylamine","name":"Ethylamine","formula":"C2H7N","molecularWeight":45.09,"classification":"Polar molecule","category":"Polar N-H bonds and a nitrogen lone pair","geometry":"Trigonal pyramidal (at N)","dipoleMoment":1.22,"smiles":"CCN","pubchemCid":"6341","sourceIds":["PubChem CID 6341","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"dimethylamine","name":"Dimethylamine","formula":"C2H7N","molecularWeight":45.09,"classification":"Polar molecule","category":"Pyramidal nitrogen with a lone pair and one N-H bond","geometry":"Trigonal pyramidal (at N)","dipoleMoment":1.03,"smiles":"CNC","pubchemCid":"674","sourceIds":["PubChem CID 674","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"trimethylamine","name":"Trimethylamine","formula":"C3H9N","molecularWeight":59.11,"classification":"Polar molecule","category":"Pyramidal nitrogen lone pair but no N-H bonds, so the dipole is small","geometry":"Trigonal pyramidal (at N)","dipoleMoment":0.612,"smiles":"CN(C)C","pubchemCid":"1146","sourceIds":["PubChem CID 1146","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"dimethyl-ether","name":"Dimethyl ether","formula":"C2H6O","molecularWeight":46.07,"classification":"Polar molecule","category":"Bent C-O-C, so the two C-O dipoles add","geometry":"Bent (at O)","dipoleMoment":1.302,"smiles":"COC","pubchemCid":"8254","sourceIds":["PubChem CID 8254","NIST CCCBDB dipole (1963BLu/Kas:2753-2760)"]},{"id":"diethyl-ether","name":"Diethyl ether","formula":"C4H10O","molecularWeight":74.12,"classification":"Polar molecule","category":"Bent C-O-C ether linkage; weakly polar","geometry":"Bent (at O)","dipoleMoment":1.15,"smiles":"CCOCC","pubchemCid":"3283","sourceIds":["PubChem CID 3283","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"tetrahydrofuran","name":"Tetrahydrofuran","formula":"C4H8O","molecularWeight":72.11,"classification":"Polar molecule","category":"Ring ether; the bent C-O-C dipole is not cancelled","geometry":"Bent (at O)","dipoleMoment":1.63,"smiles":"C1CCOC1","pubchemCid":"8028","sourceIds":["PubChem CID 8028","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"chloromethane","name":"Chloromethane","formula":"CH3Cl","molecularWeight":50.49,"classification":"Polar molecule","category":"One polar C-Cl bond on a tetrahedral carbon is not cancelled","geometry":"Tetrahedral","dipoleMoment":1.87,"smiles":"CCl","pubchemCid":"6327","sourceIds":["PubChem CID 6327","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"dichloromethane","name":"Dichloromethane","formula":"CH2Cl2","molecularWeight":84.93,"classification":"Polar molecule","category":"Two C-Cl and two C-H bonds on a tetrahedral carbon do not cancel","geometry":"Tetrahedral","dipoleMoment":1.62,"smiles":"C(Cl)Cl","pubchemCid":"6344","sourceIds":["PubChem CID 6344","NIST CCCBDB dipole (1952Mye/Gwi:1420-1427)"]},{"id":"chloroform","name":"Chloroform","formula":"CHCl3","molecularWeight":119.37,"classification":"Polar molecule","category":"Three C-Cl bonds and one C-H bond on a tetrahedral carbon do not cancel","geometry":"Tetrahedral","dipoleMoment":1.04,"smiles":"C(Cl)(Cl)Cl","pubchemCid":"6212","sourceIds":["PubChem CID 6212","NIST CCCBDB dipole (1970Rei/Wil:1418-1421)"]},{"id":"cis-1-2-dichloroethylene","name":"cis-1,2-Dichloroethylene","formula":"C2H2Cl2","molecularWeight":96.94,"classification":"Polar molecule","category":"Both C-Cl bonds sit on the same side of the double bond, so their dipoles add","geometry":"Planar","dipoleMoment":1.9,"smiles":"C(=C\\Cl)\\Cl","pubchemCid":"643833","sourceIds":["PubChem CID 643833","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"chlorobenzene","name":"Chlorobenzene","formula":"C6H5Cl","molecularWeight":112.56,"classification":"Polar molecule","category":"One polar C-Cl bond on the benzene ring","geometry":"Planar","dipoleMoment":1.78,"smiles":"C1=CC=C(C=C1)Cl","pubchemCid":"7964","sourceIds":["PubChem CID 7964","NIST CCCBDB dipole (1963Poy:1962-1966)"]},{"id":"nitrobenzene","name":"Nitrobenzene","formula":"C6H5NO2","molecularWeight":123.11,"classification":"Polar molecule","category":"Strongly polar nitro group on the benzene ring","geometry":"Planar","dipoleMoment":4.22,"smiles":"C1=CC=C(C=C1)[N+](=O)[O-]","pubchemCid":"7416","sourceIds":["PubChem CID 7416","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"benzonitrile","name":"Benzonitrile","formula":"C7H5N","molecularWeight":103.12,"classification":"Polar molecule","category":"Strongly polar nitrile group on the benzene ring","geometry":"Planar","dipoleMoment":4.515,"smiles":"C1=CC=C(C=C1)C#N","pubchemCid":"7505","sourceIds":["PubChem CID 7505","NIST CCCBDB dipole (2008Woh/Sch:119)"]},{"id":"benzaldehyde","name":"Benzaldehyde","formula":"C7H6O","molecularWeight":106.12,"classification":"Polar molecule","category":"Polar C=O aldehyde group on the benzene ring","geometry":"Planar","dipoleMoment":3.14,"smiles":"C1=CC=C(C=C1)C=O","pubchemCid":"240","sourceIds":["PubChem CID 240","NIST CCCBDB dipole (2005Des/Psz:1708)"]},{"id":"acetophenone","name":"Acetophenone","formula":"C8H8O","molecularWeight":120.15,"classification":"Polar molecule","category":"Polar C=O ketone group on the benzene ring","dipoleMoment":3.02,"smiles":"CC(=O)C1=CC=CC=C1","pubchemCid":"7410","sourceIds":["PubChem CID 7410","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"phenol","name":"Phenol","formula":"C6H6O","molecularWeight":94.11,"classification":"Polar molecule","category":"Polar O-H group on the benzene ring","geometry":"Planar","dipoleMoment":1.224,"smiles":"C1=CC=C(C=C1)O","pubchemCid":"996","sourceIds":["PubChem CID 996","NIST CCCBDB dipole (1979Lar:175)"]},{"id":"aniline","name":"Aniline","formula":"C6H7N","molecularWeight":93.13,"classification":"Polar molecule","category":"Polar N-H bonds and a nitrogen lone pair on the benzene ring","dipoleMoment":1.53,"smiles":"C1=CC=C(C=C1)N","pubchemCid":"6115","sourceIds":["PubChem CID 6115","NIST CCCBDB dipole (NSRDS-NBS10)"]},{"id":"anisole","name":"Anisole","formula":"C7H8O","molecularWeight":108.14,"classification":"Polar molecule","category":"Bent C-O-C ether linkage on the benzene 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