Crystal structure of N,N,N-tris[2-(salicylideneaminato)ethyl]aminemanganese( III), Mn[N(C9H9NO)3]

Abstract

C27H27M11N4O3, monoclinic, P\2\ln\(no. 14), a = 7. = 0.127, T= 293 K. Source of materialThe ligand (saltren) was prepared as described [1]. To a solution of saltren (1

A cap-type Schiff base acting as a fluorescence sensor for zinc(ii) and a colorimetric sensor for iron(ii), copper(ii), and zinc(ii) in aqueous media

“…binding mode of the L-Fe 2+ complex. Based on the Job plot and the structures of similar types of iron complexes reported in the literature, [79][80][81][82][83][84] we therefore propose the structure of a 1 : 1 complex of L and Fe 2+ as shown in Scheme 2. The binding constant of L with Fe 2+ was calculated as log K a = 4.30 (Fig.…”

Bis{tris[2-(2-oxidobenzylideneazaniumyl)ethyl]amine-κ3O,O′,O′′}calcium bis(perchlorate) acetonitrile disolvate

“…We are grateful to the Turkish Government for the award of a postgraduate scholarship (to MK). The crystal structures and coordination chemistry of transition metal complexes of H 3 saltren, tris(2-hydroxybenzoylaminoethyl)amine (L), a tripodal ligand, have been described in detail (Steinhauser et al, 2004;Elerman et al, 1994); Elerman et al, 1995). Here, we report the first example of an earth alkaline metal (Ca +2 ) complex of H 3 saltren.…”

“…For crystal structure of the free ligand, see: Gü ndü z et al (1985). For structures of transition metal complexes of H 3 saltren, see: Steinhauser et al (2004); Elerman et al (1994Elerman et al ( , 1995. Orthorhombic, Pbca a = 11.3469 (7) Å b = 19.5307 (12) Å c = 27.3178 (16) Å V = 6054.0 (6) Å 3 Z = 4 Mo K radiation = 0.27 mm À1 T = 150 K 0.12 Â 0.10 Â 0.09 mm…”

Design and application of transition metal catalysts for laundry bleach

“…This complex is about 6-fold faster in the bleaching of the dye R Bk 005 than the dimethylamino-substituted Mnesalen complex 1 (pH 10, 10 mM catalyst and 8.6 mM H 2 O 2 ) and has recently been commercialized under the trade name TINOCAT Ó TRS. Considering the structure of this complex in the crystalline state it seems peculiar to observe any catalytic activity at all, since in crystals the Mn(III) center is coordinatively saturated by the three imine nitrogens and the three phenolic oxygens [35]. Most likely one or more of the coordinating O or N are detached in alkaline solutions in presence of H 2 O 2 so that the Mn can interact with H 2 O 2 or its anion.…”