Metals nitrido complexes

The results obtained to date are considerable and show that the chemistry of the TcN group may well be the most varied and interesting of the transition metal nitrido complexes [1,9,10]. The aim of this chapter is to provide a fairly comprehensive review of the literature up to the latter part of 1994. Additional data may be found in two conference volumes [11,12] and a recent review of Tc coordination chemistry [4]. For macroscopic studies with the long-lived "Tc (ti/2 = 2.11 x 10s years) the "Tc radionuclide is denoted simply as Tc. No carrier added studies and radiopharmaceutical applications utilizing the shortlived "mTc radionuclide (ti/2 = 6.01 hours) are denoted as "mTc. 

The preparative, structural, and bonding aspects of transition metal nitrido complexes have been reviewed in detail recently (132,179). To summarize, there are three principal preparative pathways to yield nitrido complexes and these, with examples, are outlined below. 

Metal-nitrido complexes containing dithiolene ligands have been reported recently. Reaction of electrophiles such as R3OBF4 (R = Me, Et) and Ph3CPF6 with [M(N)(bdt)2] (M = Ru, Os) has been studied by Sellmann et al. (123) While the Ru-nitrido complex gives an intractable mixture of products, the Os-nitrido complex yields clean products (Eqs. 20-21). Alkylation at sulfur is... 

The subject of transition metal nitrido complexes has been reviewed.310,311... 

Transition Metal Nitrido-Complexes , W. P. Griffith, Coord. Chem. Rev., 1972, 8, 369. 

---