Here, the essence of chemical identity is unveiled, transforming the complexities of molecular structure into a captivating narrative of discovery and understanding.
Sulfur tetrafluoride PolaritySulfur tetrafluoridePolaritySulfur tetrafluoride (CAS 7783-60-0) is polar. It is polar by symmetry, but no dipole magnitude is quoted. Snyder polarity index Not conventionally assigned; XlogP3-AA 2.33 (Crippen calculated, RDKit).
Nitrate ion PolarityNitrate ionPolarityNitrate ion (CAS 14797-55-8) is a molecular ion, for which "polar / nonpolar" is the wrong question. Its polarity follows from structure and symmetry rather than from a calculated dipole. Covers geometry, comparison data, QC strategy and B2B.
Ethylene PolarityEthylenePolarityEthylene (CAS 74-85-1) is nonpolar. C2H4 is symmetric, so its bond dipoles cancel and μ = 0 D exactly Dipole moment 0 D (exact by symmetry); dielectric constant ≈1.00138 (gas estimate). Covers geometry, comparison data, QC strategy and B2B sourcing.
Ozone PolarityOzonePolarityOzone (CAS 10028-15-6) is polar. O3 has a literature gas-phase dipole of about 0.53 D, which follows from its bent oxygen centre Snyder polarity index Not conventionally assigned; XlogP3-AA -1.12 (Crippen calculated, RDKit).
Boron trifluoride PolarityBoron trifluoridePolarityBoron trifluoride (CAS 7637-07-2) is nonpolar. BF3 is symmetric, so its bond dipoles cancel and μ = 0 D exactly Dipole moment 0 D (exact by symmetry); dielectric constant ≈1.00191 (gas estimate). Covers geometry, comparison data, QC strategy and B2B.
Sulfur trioxide PolaritySulfur trioxidePolaritySulfur trioxide (CAS 7446-11-9) is nonpolar. SO3 is symmetric, so its bond dipoles cancel and μ = 0 D exactly Dipole moment 0 D (exact by symmetry); dielectric constant ≈1.06662 (gas estimate). Covers geometry, comparison data, QC strategy and B2B.
Oxygen PolarityOxygen
PolarityOxygen (CAS 7782-44-7) is nonpolar. Two identical nuclei leave the O=O bond with no dipole at all, so mu = 0 D by symmetry; paramagnetism is magnetic, not electrostatic. Snyder polarity index Not conventionally assigned; XlogP3-AA -1.1.
Nitrogen Dioxide PolarityNitrogen Dioxide
PolarityNitrogen Dioxide (CAS 10102-44-0) is polar. An odd electron bends NO2 to 134deg (0.316 D), but it dimerises to centrosymmetric N2O4 at 0 D, so the verdict is temperature dependent. Snyder polarity index Not conventionally assigned; XlogP3-AA -0.3.
Nitrogen PolarityNitrogen
PolarityNitrogen (CAS 7727-37-9) is nonpolar. Identical nuclei give the N=N bond no dipole at all, so mu = 0 D by symmetry. Dipole moment 0 D; dielectric constant ≈1.00055 (gas); ≈1.45–1.47 (liquid, −196 °C).
Ammonia PolarityAmmonia
PolarityAmmonia (CAS 7664-41-7) is polar. One lone pair makes ammonia pyramidal at 107.8deg, leaving a 1.471 D uncancelled dipole. Dipole moment 1.471 D; dielectric constant ≈1.006 (gas); ≈16.9 (liquid, 25 °C).