Germanium(II) iodide

This chemical is called Germanium iodide (GeI2), and its IUPAC name is diiodogermanium. With the molecular formula of GeI₂, its molecular weight is 326.45. The CAS registry number of this chemical is 13573-08-5. Keep it avoid water / wet oxide and light.

Other characteristics of the Germanium iodide (GeI2) can be summarised as followings: (1)H-Bond Donor: 0; (2)H-Bond Acceptor: 0; (3)Rotatable Bond Count: 0; (4)Exact Mass: 327.730114; (5)MonoIsotopic Mass: 327.730114; (6)Topological Polar Surface Area: 0; (7)Heavy Atom Count: 3; (8)Formal Charge: 0; (9)Complexity: 2.8; (10)Isotope Atom Count: 0; (11)Defined Atom StereoCenter Count: 0; (12)Covalently-Bonded Unit Count: 1.

Synthesis of this chemcial: Shatter 10g A germanium sulfide and take it into 250mL conical flask. Meanwhile, add excessive 200% (about 80mL) of concentrated hydrogen periodate (57%, relative density 1.7). In the steam bath heat it to 100 °C, and continue to shake and respond. After 20 minutes later, filtering and cooling the filtrate, you will get a shiny yellow brown flaky crystal germanium diiodide. About 30minutes, filtering and collecting crystals, the filtrate containing germanium sulfide back into the original Erlenmeyer flask. This operation repeated 3 to 4 times, most of the sulfide is transformed into iodide.  In a vacuum,  the four germanium iodide sublimation removed when heated  to 100 °C. Then obtain the Germanium diiodide.

When you are using this chemical, please be cautious about it as the following: This chemical causes burns. You should wear suitable protective clothing if you use it. Don't breathe vapor. In case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure: 
1. InChI: InChI=1/GeH2I2/c2-1-3/h1H2
2.Smiles:[GeH2](I)I