WebElements Periodic Table of the Elements | Periodicity | Ionic radii (Shannon) for 8-coordinate M(V) ion | line graph

	Ionic radii (Shannon) for 8-coordinate M(V) ion These are Shannon ionic radii. Units pm Notes The "efective ionic radii" quoted here assume that the ionic radius of F^- is 133 pm and that of O^2- is 140 pm. Values depend upon the coordination number and for d-block metals whether or not the metal is in a high or low spin state. Older "crystal ionic radii" are based upon a radius of six-coordinate F^- = 119 pm and are 14-18% larger than effective ioinc radii. Literature sources R.D. Shannon, Acta Cryst., 1976, A32, 751. R.D. Shannon and C.T. Prewitt, Acta Cryst., 1969, B25, 925. R.D. Shannon and C.T. Prewitt, Acta Cryst., 1970, B26, 1046. J.E. Huheey, E.A. Keiter, and R.L. Keiter in Inorganic Chemistry : Principles of Structure and Reactivity, 4th edition, HarperCollins, New York, USA, 1993. WebElements Shop WebElements now has an online chemistry shop at which you can buy periodic table posters, mugs, T-shirts, games, molecular models, and more.
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