MOLECULAR POLARITYFIELD NOTE 145 / 175

Is NOF polar or nonpolar?

NOF is polar because its N=O and N–F bond directions do not cancel around a bent nitrogen center.

THE ANSWERPolar.

Nitrosyl Fluoride · bent at N

FIGURE 01

The molecule in space

Drag to turn the molecule. Show angles to read the model geometry.

STRUCTURE / 01
F ×1O ×1N ×1
FON
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01 / MODEL RECORDPubChem 3D coordinates. Atom sizes and bond thickness are illustrative.How model data is used ↗

THE REASONING

Why NOF is polar

The nitrogen atom is linked to oxygen and fluorine and keeps a lone pair in the common Lewis picture. The two polar bonds have different strengths and meet at an angle, leaving a net dipole.

A USEFUL DISTINCTION

What to notice

NOF has both a strongly polar N–F link and an N=O link. The molecule cannot be classified by treating its geometry as a straight line.

QUICK REFERENCE

Common questions about NOF

  1. 01
    What does the Lewis structure of NOF show?

    The common connectivity is O=N–F. Nitrogen has one lone pair, oxygen two, and fluorine three.

  2. 02
    What is the molecular geometry of NOF?

    NOF has a bent at N molecular geometry. The 3D model shows representative bond angles of 111°. These angles come from the displayed model coordinates.

  3. 03
    What is the molar mass of NOF?

    NOF has an approximate molar mass of 49.00 g/mol, calculated from its formula using abridged standard atomic weights. Natural isotope variation can change the last digits.

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