N. Lebris et al., MODES OF COMPLEXATION OF LINEAR TRIAMINES AND TETRAAMINES WITH GROUP-6 METAL-CARBONYLS, Journal of organometallic chemistry, 487(1-2), 1995, pp. 131-137
On reaction with Group 6 metal carbonyls [M(CO)(6)] (M = Cr, Mo or W),
linear tri- and tetraamines act as bi- or tri-dentate ligands giving
rise to complexes [LM(CO)(4)], [L{M(CO)4}(2)] or [LM(CO)(3)] depending
on the chain length and the metal M.