Title:  Samarium Iodide 
CAS Registry Number:  32248-43-4 
Additional Names:  Diiodosamarium;  samarium diiodide;  samarium(II) iodide 
Molecular Formula:  I2Sm 
Molecular Weight:  404.17 
Percent Composition:  I 62.80%, Sm 37.20% 
Line Formula:  SmI2 
Literature References:  One-electron reducing agent.  Prepn:  C. Matignon, E. Cazes, Ann. Chim. Phys. 8, 417 (1906); and use in organic synthesis:  J. L. Namy et al., Nouv. J. Chim. 1, 5 (1977); P. Girard et al., J. Am. Chem. Soc. 102, 2693 (1980).  Coordination chemistry and crystal structure of adducts with THF:  W. J. Evans et al., ibid. 117, 8999 (1995).  Review of properties:  S.-H. Wang, Rev. Inorg. Chem. 11, 1-20 (1990); of uses in organic chemistry:  G. A. Molander, C. R. Harris, Chem. Rev. 96, 307-338 (1996); H. B. Kagan, Tetrahedron 59, 10351-10372 (2003). 
Properties:  Black to light black solid, mp 526 ±3°.  Deep blue-green soln in THF.  Absorption max (THF):  565, 617 nm.  Sol in ether, THF.  Redox potential:  E0 -1.55 v.  Unstable in the presence of oxygen or moisture; store under an inert atmosphere. 
Melting point:  mp 526 ±3° 
Absorption maximum:  Absorption max (THF):  565, 617 nm 
Use:  In organic synthesis and electron transfer reactions; in discharge lamps.   |