EXERCISE 3.2 Predict the structures of the following ions. Include a description of distortions from the ideal angles (for example, less than 109.5° because...). NH, NH, 1, PCL-

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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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EXAMPLE 3.4
SbF,- has a single lone pair on Sb. Its structure is therefore similar to SF,, with a lone
pair occupying an equatorial position. This lone pair causes considerable distortion,
giving an F-Sb-F (axial positions) angle of 155° and an F– Sb-F (equatorial)
angle of 90°.
SF;- has a single lone pair. Its structure is based on an octahedron, with the ion
distorted away from the lone pair, as in IF .
SeF,* has a single lone pair. This lone pair reduces the Se-F bond angle
significantly, to 94º.
EXERCISE 3.2 Predict the structures of the following ions. Include a description of
distortions from the ideal angles (for example, less than 109.5° because...).
NH, NH, I; PCl-
Transcribed Image Text:EXAMPLE 3.4 SbF,- has a single lone pair on Sb. Its structure is therefore similar to SF,, with a lone pair occupying an equatorial position. This lone pair causes considerable distortion, giving an F-Sb-F (axial positions) angle of 155° and an F– Sb-F (equatorial) angle of 90°. SF;- has a single lone pair. Its structure is based on an octahedron, with the ion distorted away from the lone pair, as in IF . SeF,* has a single lone pair. This lone pair reduces the Se-F bond angle significantly, to 94º. EXERCISE 3.2 Predict the structures of the following ions. Include a description of distortions from the ideal angles (for example, less than 109.5° because...). NH, NH, I; PCl-
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