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Hepta-coordinate halocarbonyl molybdenum(II) and tungsten(II) complexes as heterogeneous polymerization catalysts

✍ Scribed by Jorge Gimenez; Carla D. Nunes; Pedro D. Vaz; Anabela A. Valente; Paula Ferreira; Maria José Calhorda

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
229 KB
Volume
256
Category
Article
ISSN
1381-1169

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Seven-coordinate complexes of molybdenum
Seven-coordinate complexes of molybdenum(II) and tungsten(II) containing pyrazole as a ligand
✍ Paul K. Baker; Marit van Kampen; Christina Roos; Julia Spaeth 📂 Article 📅 1994 🏛 Springer 🌐 English ⚖ 352 KB

Equimolar quantities of [MI2(CO)3(NCMe)2 ] (M = Mo or W) and C3H4N2 (pyrazole) react in CH2C12 at room temperature to give the iodo-bridged dimers [M(#-I)(CO)3(C:~H~N2)]2 (I) and (2). Two equivalents of C3H4N 2 react with [MIz(CO)a(NCMe)2] (M = Mo or W) to give the bis(pyrazole) complexes [MIz(CO)3(