Reactions of tetrathionaphthalene with transition metal carbonyls. Synthesis and characterization of two new organometallic semiconductors (C10H4S4Ni)x and [C10H4S4Co2(CO)2]x and a tetrairon cluster C10H4S4Fe4(CO)12

The Preparation and Characterisation of Hetero‐ and Homobimetallic Complexes Containing Bridging Naphthalene‐1,8‐dithiolato Ligands

“…(Table 2) of 1 and 4 show single phosphorus environments with appropriate platinum satellites, whereas the spectra of 2 and 3 are the more-complex AX type. This confirms that the two platinum-bound PPh 3 ligands are inequivalent, with 2 …”

“…Variable-temperature NMR studies of compound 7 were inconclusive because the high-boiling-point polar solvents, such as dimethyl sulfoxide and dimethyl formamide, in which 7 dissolved caused substantial decomposition and the chlorinated solvents in which 7 was readily soluble, for example, dichloromethane and chloroform, reached their boiling points before coalescence of the two positional isomers was observed. The palladium analogue [(PPh 3 ) 2 Pt(m H NMR studies of species, such as binuclear palladium-allyl complexes bearing bridging pyrazolide ligands, [46] as well as a series of bimetallic palladium/platinum complexes of the general formula 2 S, M = Pd or Pt and R' = H or Me). [24] The positive ESI mass spectra of 7 and 8 clearly showed Tables 1 and 2 4 ] 12 was prepared as described above and as a dichloromethane solution subjected to an atmosphere of carbon monoxide gas (CO) at room temperature and pressure for 3 h, which gave a pale-orange solution.…”

“…Teo and co-workers used oxidative addition of the proligands tetrathionaphthalene (TTN), tetrachlorotetrathionaphthalene (TCTTN) and tetrathiotetracene (TTT) to a variety of low-valent metal substrates to demonstrate the diverse structural variations obtainable from this set of ligands. [1][2][3][4][5][6][7][8] Of particular relevance to the work presented here are those compounds in which two metal centres are bridged by two sulfur atoms of the naphthalene or tetracene dithiolate ligands mentioned above, giving rise to complexes with M 2 S 2 cores. For example, the tetra-iron species [{(CO) 3 Fe} 2 (C){Fe(CO) 3 } 2 ], [2] the polymeric nickel and cobalt systems [{Ni} 2 (C){Ni} 2 ], [2] [{(CO) 2 Co} 2 (C){Co(CO) 2 } 2 ], [2] the dinuclear iridium and cobalt compounds [{(PPh 3 3 )}], [4] [{(h [7] both of which have been shown crystallographically to contain a metal-metal bond, and the nickel complex [{(h (13) was formed by bubbling gaseous CO through a solution of 12.…”

Complexation of aromatic dichalcogen ligands to germanium

“…Until recently bidentate dithiolate ligands with larger rigid aromatic backbones, such as naphthalene, biphenyl, anthracene and tetracene, have had relatively little attention in comparison to other dithiolate ligands such as ethane-1,2-dithiolate, B, and benzene-1,2-dithiolate, D 7 Teo reported some systems in the late 1970s (G-J, Figure 2) studying a series of singly and doubly bridged transition metal complexes with potential uses as organic solid state semiconductors. [8][9][10][11][12][13][14][15] Figure 2: Structurally related naphthalene ligands.…”

Platinum Complexes of 5,6‐Dihydroacenaphtho[5,6‐cd]‐1,2‐dichalcogenoles

“…[8] Further complexes bearing TTN type ligands were prepared coordinated to Fe, Co and Ni. [9] Similarly, oxidative addition of [Pd(PPh 3 ) 3 ] and [Pt(PPh 3 ) 4 ] to the related hexachloronaphthalene-1,8-dithiole (hcdtn) ligand affords two mononuclear square-planar complexes, [10,11] whilst treatment with RhCl(PPh 3 ) 3 results in the formation of a five-coordinate Rh(III) complex. [11] In comparison, reaction of hcdtn with [Ni(cod) 2 ] and PPh 3 affords a memorable trinuclear nickel(II) complex.…”