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Gadolinium diiodide
Chemical compound From Wikipedia, the free encyclopedia
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Gadolinium diiodide is an inorganic compound, with the chemical formula of GdI2. It is an electride, with the ionic formula of Gd3+(I−)2e−,[2] and therefore not a true gadolinium(II) compound. It is ferromagnetic at 276 K with a saturation magnetization of 7.3 B; it exhibits a large negative magnetoresistance (~70%) at 7 T near room temperature.[3] It can be obtained by reacting gadolinium and gadolinium(III) iodide at a high temperature:[4]
- Gd + 2 GdI3 → 3 GdI2
It can react with hydrogen at high temperature (800 °C) to obtain gadolinium hydrogen iodide (GdI2H0.97[5]).[6]
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