Soluble metal selenides. Synthesis and structure of the tridecaselenidodivanadate anion, V2Se132-

The Synthesis of a Novel Cyclo-Se3-Bridged Trinuclear Ru Complex

“…A number of catena‐polychalcogenide complexes have been reported 14, 15, 16, 17. For example, Ibers et al found [V 2 ( η 2 ‐Se 2 ) 2 ( μ ‐ η 2 Se 2 ) 2 (Se 5 )] 2− to have a pentaselenide bridging ligand with different SeSe bond lengths (2.453(3), 2.360(3), 2.339(3), and 2.431(3) Å) 14. There are only a few examples of fully characterized complexes that have a cyclo ‐trichalcogen.…”

Reaction of transition metal carbonyls with soluble polyselenides: synthesis and structure of [(C6H5)4P]2[Re2(Se4)2(CO)6]

“…The bridging Se42-group has also been observed for the first time in the chromium trimer ~r~S e~~~-(1 1). Recently, a rhodium dimer containing two bridging Se2 groups has been reported (12), as well as a complex with a pentaselenium chain terminally chelated to two vanadium centers (13). However, in general, bridging polyselenides are rare.…”

Structure of bis(tetraphenylphosphonium) pentaselenide

“…) Se(8) (Table 3), the internal Se(2)-Se(3)-Se(4) angle, 110.59 (7) °, is at least 4 ° larger than that found in RbESes, 104.5 (6) (BGttcher, 1979), CSESe 5, 104.6 (4) (Kretschmann & BGttcher, 1985), [Cs(18-crown-6)]E[Ses] , 106.6 (2) (Brese, Randall & Ibers, 1987), FeESe2(Se5) 2-, 103.35 (7) (Strasdeit, Krebs & Henkel, 1984), and V2Se~, 103.4 (1) ° (Chau, Wardle & Ibers, 1987). The torsional angles in the present Se 2-chain are 77.32 (8) and 89.16 (7) ° .…”

“…Soluble salts of transition-metal selenium anions [MxS%] 2-are rare. We recently showed that selenation of ammonium metavanadate with bis(dimethyloctylsilyl) selenide produced the V2Se23 ion (Chau, Wardle & Ibers, 1987). As a continuation of our efforts to discover new transition-metal selenium anions we have investigated the reaction of zirconium tetraethoxide with bis(dimethyloctylsilyl) selenide.…”