- INFRARED MATRIX ISOLATION STUDIES OF THE INTERACTIONS OF Mg, Ca, Sr, AND Ba ATOMS AND SMALL CLUSTERS WITH WATER.
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Mg, Ca, Sr, and Ba metal atoms react with water to form M**. **. **. OH//2 adducts on cocondensation at 15 K in excess argon. Adduct formation is evidenced by a red shift in the water nu //2 bending mode frequency and ranges from approximately 15 cm** minus **1 for Mg to approximately 30 cm** minus **1 for Ca, Sr, and Ba. Subsequent photolysis of the adducts results in oxidative insertion reactions to form HMOH molecules. At higher magnesium metal concentrations, Mg//2**. **. **. OH//2 and Mg//x**. **. **. OH//2, x greater than equivalent to 3, adducts are observed. Sequential reactions between two metal atoms and one water molecule produce the HMOMH species in the case of Mg and Ca. Reaction between one Ca metal atom and two water molecules produces the Ca(OH)//2 molecule.
- Kauffman,Hauge,Margrave
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